Disclaimer
Legal notices for the website and apps
As of: 1 November 2026
1. Scope
These legal notices apply to the SchelloLabs website and to the following apps insofar as they refer to this page:
- AufmassPro|tokolle
- HOAI-Rechner
- E|Rechner
- AbÄppelApp
- ÜbergabePro|tokolle
- PrüfPro|tokolle
- BauDokuPro|tokolle
- KüchenHopping
- RegiePro|tokolle
- RechnungsPro|tokolle
- StundenPro|tokolle
- BeetKlar
The legal notice identifying the provider, the Privacy Policy, the respective app description and any terms validly incorporated when downloading or purchasing an app or in-app purchase also apply. Additional notices displayed within an app for a particular function must also be observed.
2. Purpose of the website and apps
SchelloLabs provides digital tools for planning, technical work, documentation, organisation, garden planning and garden maintenance.
The content and functions assist users with calculations, records, inspections, analyses, organisational processes and document creation. They do not replace legal or tax advice, specialist design, construction management or supervision, inspections, formal acceptance, expert assessments, employment law assessments, payroll preparation, veterinary advice or other individual professional services relating to a specific case.
Whether and how a result can be used depends, in particular, on the input data, actual circumstances, contractual framework, technical conditions and the laws, regulations, standards, technical rules, manufacturer instructions, collective bargaining agreements, works or public-sector staff agreements and official requirements applicable to the specific case.
3. Independent verification
Calculations, suggestions, templates, records, reports, inspection results and export files are generated from data entered, selected or imported by the user and the calculation and processing rules implemented in the respective app. Incomplete, incorrect, outdated or incorrectly assigned inputs may lead to incorrect results.
Before using an output for professional, technical, economic, tax, employment, contractual or other legal purposes, the following must be checked in particular:
- Completeness and accuracy of the inputs
- Plausibility of the results and calculation method
- Suitability for the intended purpose
- Whether the app version and calculation bases are up to date
- Current laws, regulations, technical rules and standards
- Contractual agreements and project-specific requirements
- Manufacturer instructions, approvals and system specifications
- Required authorisations, supporting evidence, measurements and inspections
- Authority of the people involved to represent others, inspect and sign
Safety-related decisions must not be based solely on an app output. They must be reviewed by an appropriately qualified and responsible person in relation to the actual installation, property or circumstances.
Working time records must take account, in particular, of applicable requirements under the German Working Time Act and Occupational Safety and Health Act and, where relevant, the Minimum Wage Act, Posted Workers Act, Youth Employment Protection Act, collective bargaining agreements, works or public-sector staff agreements and employment contracts. The organisational, recording, retention, information, data protection and co-determination obligations of responsible bodies remain in force. Whether the respective app and its configuration can support the particular workplace purpose must be assessed separately.
4. Notices for individual apps
AufmassPro|tokolle
AufmassPro|tokolle supports the recording, calculation and documentation of measured quantities and the import and export of project, work and GAEB data. The app does not replace professional measurement and verification, invoice review or binding determination of quantities, work performed or payment entitlements.
Bills of quantities, formulae, rounding, quantity assignments and measurement record versions must be checked against the contract documents and work performed. Technical import or calculation does not constitute acceptance or acknowledgement of work, variations, claims or bills. Differences in GAEB exchange phases, file versions and originating systems may cause discrepancies; imported and exported data must therefore be checked before further use.
HOAI-Rechner
HOAI-Rechner supports fee calculations and comparisons based on the selected inputs. Under Section 2a of the German Fee Structure for Architects and Engineers (HOAI), the fee tables provide reference values. The fee payable depends, in particular, on a valid fee agreement, the scope of services commissioned, the contract and the individual circumstances.
The applicable fee calculation bases and any text-form requirements, consumer information obligations or basic fee rate under Section 7 HOAI must be assessed for the particular contract. The app does not replace legal, tax or contractual review and does not automatically create a valid fee agreement or verifiable invoice. Changes to the HOAI, case law and contractual bases must be considered separately.
E|Rechner
E|Rechner supports electrical engineering calculations and their documentation. Results must be checked against the actual supply network, installation, cable installation method, protection and environmental conditions, and applicable legal, standards-based and manufacturer requirements. Current-carrying capacity, voltage drop, short-circuit withstand capability, automatic disconnection conditions and selectivity must be assessed in the context of the protection concept.
The app does not replace specialist design and protection coordination, network calculations, measurements, inspections, commissioning or professional assessment of the overall installation. Tables and calculation models cover only defined applications: a missing result does not rule out other permissible solutions, and a returned result does not confirm the suitability of the overall solution. Work on electrical installations may be carried out only by appropriately authorised and qualified people.
PrüfPro|tokolle
PrüfPro|tokolle supports the recording and documentation of inspections, measured values and findings. The app does not itself perform inspections or measurements. It does not confirm the inspector's qualifications or the suitability, calibration or proper use of the measuring and testing equipment employed.
The responsible person must determine and check the inspection scope, methods, limit values, assessment, inspection intervals and release in accordance with the requirements for the particular item being inspected. A generated report reflects the documented information; it does not replace a properly performed inspection or professional assessment of the results. Use must take account of actual conditions, the underlying inspection requirements and the documented findings.
ÜbergabePro|tokolle
ÜbergabePro|tokolle supports the structured documentation of property handovers, conditions, meter readings, keys, photos and findings. The app does not itself carry out formal acceptance or legal assessment. A record does not automatically determine defect rights, the burden of proof, liability or the transfer of possession or ownership.
A signature drawn in the app without a qualified trust service and qualified certificate is not a qualified electronic signature. Its evidential or legal effect depends on the statement, circumstances, identity, authority to represent others and applicable form requirements. Before signing or sharing, the content, parties, recipient and intended use must be checked; the general information about documents and signatures also applies.
BauDokuPro|tokolle
BauDokuPro|tokolle supports daily, weekly and monthly reports and documentation of work performed, personnel, weather, disruptions, defects, photos and construction site events. Recording, saving or signing a matter does not replace a statement that must be made to the correct recipient under law or contract.
This applies particularly to notices of concerns, disruptions or defects, the setting of deadlines, notifications of variations and formal acceptance. Content, form, recipient, receipt, deadline and evidence must be checked independently of the app. A report alone does not constitute acknowledgement of work performed, deadlines, costs, variations or claims. Before use, documentation must be checked against actual construction progress and contractual requirements.
RegiePro|tokolle
RegiePro|tokolle supports the recording, review, signing and documentation of daywork, site work and labour records, including work performed, working times, materials, equipment, photos, attachments and optional location details. A record reflects the information entered and signed by the user.
Creating, signing, finalising or handing over a record does not automatically constitute an instruction to carry out work, formal acceptance, a variation agreement, invoice approval, payment instruction or acknowledgement of quantities, hours, remuneration or claims. A signature's effect depends on the statement, circumstances, identity and authority to represent others; an on-screen signature is not a qualified electronic signature. Deadlines and contractual notification, evidence and submission procedures must be observed independently of the app. The general information about documents, signatures and archiving also applies.
RechnungsPro|tokolle
RechnungsPro|tokolle supports the structured review and documentation of invoices, cumulative bills, contract and bill-of-quantities values, GAEB data, discounts, deductions, retentions, variations and tax treatments, including potential cases under Section 13b of the German Value Added Tax Act (UStG). Results are based on inputs, imported data, saved contract versions and selected calculation rules.
The app does not replace legal, tax, accounting or contractual review. A review value is not automatic invoice approval, a payment instruction, determination of a due date, acknowledgement of a claim or a binding final invoice review. Tax treatments, exemptions, rates, retentions and deductions require professional assessment. Rounding, relevant tax dates, payments already made and particular contractual provisions must be checked against the original documents.
StundenPro|tokolle
StundenPro|tokolle supports working time records, breaks, target and actual times, time accounts, leave and absences, and weekly, monthly and annual records. Classification as working time, paid time, standby, travel time or overtime depends on the actual circumstances and applicable statutory, collectively agreed, workplace and contractual rules.
Automatically suggested or deducted breaks do not establish that breaks were actually taken correctly. Rounding and retrospective entries must be checked. A record is not a payroll statement, employer approval or binding determination of entitlements to pay, leave or time off in lieu. The app does not replace a recording system properly established and used by an employer. Employer obligations and participation rights remain unaffected.
AbÄppelApp
AbÄppelApp helps stable communities organise tasks, appointments, duties, absences and operational arrangements. The app does not replace veterinary, medical, safety or animal welfare assessments. Responsibilities, tasks and notices must be checked by the responsible people against the actual situation.
In the event of illness, injury, danger or other urgent situations, the responsible people or appropriate professional or emergency services must be contacted directly. Users must not wait for an app notification or synchronisation. An entry or reminder alone does not establish that a task has actually been completed or that all people involved have read the information.
KüchenHopping
KüchenHopping supports the organisation of events, teams, routes and meal courses. Information about dietary preferences, intolerances and allergies is based on user input and may be incomplete, ambiguous or outdated. It does not constitute an assurance that a dish is free of particular ingredients or traces.
Hosts and participants must discuss ingredients, preparation, possible cross-contamination and individual risks directly with each other. In cases of severe allergies, food safety must not be based solely on app information. Assignments, contact details and arrangements must be checked for practical suitability before the event. In a medical emergency, local emergency services must be contacted immediately.
BeetKlar
BeetKlar supports the organisation and documentation of garden areas, plantings, care tasks and appointments. Stored information, suggestions and dates provide general guidance and must be adapted to the actual plant, soil, location and weather conditions. They do not replace individual horticultural or plant protection advice, tree inspections or safety assessments.
Use must comply with applicable nature conservation and plant protection rules, local requirements and product and safety instructions. An app entry or care suggestion does not constitute an official permit, legal clearance or confirmation that a measure is suitable. General guidance and reminders do not replace necessary on-site checks.
5. Documents, signatures and legally significant statements
PDF, CSV, GAEB and other files generated using the apps reflect content recorded or imported by the user and its processing by the respective app.
A document does not acquire a particular legal effect, evidential value, verifiability, contractual or employment-law binding effect or tax recognition merely because it has been created, finalised, archived, signed or assigned a technical checksum using a SchelloLabs app. The user must check whether the content, form, signature, identity, authority to represent others, recipient, transmission method, receipt and timing are sufficient for the intended purpose.
An electronic signature must not be denied legal effect solely because it is electronic or does not meet the requirements of a qualified electronic signature. However, the drawing function used in SchelloLabs apps does not provide a qualified electronic signature, does not automatically verify the signatory's identity or authority to represent others and therefore does not necessarily satisfy statutory or contractual form requirements.
Signing or exporting within the app does not automatically confirm that a statement has reached the intended recipient within the required time. Exported documents must be reviewed in full before sending. This applies particularly to personal data, confidential project information, calculation results, quantities, times, measured values, invoice and tax details, signatures, photos and attachments.
6. Finalisation, archiving and technical integrity
Some apps may protect finalised records against accidental changes, create snapshots, maintain change information or use technical checksums. These functions support traceability and integrity checks within the respective app and the scope of data it covers.
They do not replace a separately assessed archiving, procedural and retention concept and, in particular, do not automatically provide audit-proof archiving or compliance with the German GoBD requirements, notarisation or official certification, a qualified electronic timestamp or a qualified electronic signature. A technical checksum alone does not confirm the factual accuracy or authenticity of content, the identity of a person involved or the absence of changes outside the app's verification scope.
Statutory, tax, employment, professional or contractual retention, documentation and evidence obligations must be assessed and fulfilled separately by the user or responsible organisation.
7. Import, export and data exchange
File formats and interfaces may be implemented differently by different programs, versions and manufacturers. Despite careful development, differences in presentation, unsupported content, rounding differences, differing character encodings, metadata not transferred and other loss of information during import and export cannot be entirely ruled out.
Users must retain original files and compare transferred data with the source before further processing. Successful technical processing does not automatically mean that a file is complete and correct in professional, numerical, contractual, tax or legal terms.
8. Backups, iCloud, CloudKit, StoreKit and third-party services
Some apps may use Apple services such as the App Store, StoreKit, iCloud or CloudKit and operating system import, export and sharing functions.
Availability, synchronisation and data transmission may depend, among other things, on the Apple Account, device settings, internet connection, available storage, operating system version and the respective provider's system availability. SchelloLabs cannot guarantee uninterrupted or conflict-free availability of third-party services at all times.
Important data and exported documents must be backed up appropriately. Synchronisation does not replace an independent backup. Before changing devices, reinstalling an app, deleting data or changing the iCloud configuration, users must check that an up-to-date, complete and readable backup is available.
Deleting an app from a device and deleting its iCloud or CloudKit data are separate operations. An in-app function for deleting that app's iCloud data relates exclusively to the data of that particular app. It does not delete other iCloud content, data from other SchelloLabs apps or App Store purchase or subscription entitlements.
Deletion of synchronised data may take effect on other devices after synchronisation and may be permanent. The deletion may be displayed with a delay. Content already exported, sent, copied or stored by recipients must be deleted separately at its respective storage location.
The "Restore Purchases" function can restore only restorable purchase or subscription entitlements; it does not restore deleted projects, documents or other app data. Deleting an app or its data does not cancel a subscription taken out through the App Store. Subscriptions must be managed and, where desired, cancelled through the Apple Account.
9. Content and links from external providers
The website and apps may contain links to external websites, documents, App Store pages or third-party services. The respective provider is responsible for their content, availability and data processing.
SchelloLabs does not adopt third-party content as its own merely by linking to it, unless expressly stated otherwise. External content is not continuously monitored without a specific reason. Unlawful, incorrect or inaccessible content may be reported to SchelloLabs. Where a report is substantiated, the relevant link will be reviewed and removed if necessary.
10. User input, data protection and third-party rights
Users or the organisations deploying the apps are responsible for the selection, lawfulness and accuracy of the content under their control and for the recipients and purposes they determine. SchelloLabs' own responsibility for the processing described in the Privacy Policy remains unaffected.
Before processing or disclosing content, users must assess, in particular, whether personality rights, data protection, copyright, trade secrets, employment requirements, workplace co-determination rights, contractual confidentiality obligations or other third-party rights are affected. This applies particularly to photos of people, signatures, location details, contact, employee, working time, absence, customer, project, contract and invoice data, plans, bills of quantities, documents and third-party images or text.
Providing a technical input, photo, location, import, synchronisation, time recording or sharing function does not mean that a particular use is lawful. Professional and organisational users must assess and fulfil, in particular, requirements relating to the legal basis, purpose, data minimisation, information obligations, access permissions, retention periods, permitted recipients, erasure and evidence.
11. Copyright and trademarks
Content, text, graphics, app interfaces, document templates and other works created by SchelloLabs are protected by copyright insofar as the statutory requirements are met.
Reproduction, adaptation, distribution or other use beyond statutory exceptions and the rights of use granted requires prior consent from the respective rights holder. Downloads and copies may be used only within the intended app functions, the rights of use granted or statutory permissions.
Third-party names, logos and trademarks remain the property of their respective owners. References serve solely to describe products, services, interfaces or compatibility and do not imply a commercial relationship, endorsement or certification unless expressly stated otherwise.
12. Availability, currency and changes
SchelloLabs continuously develops and maintains the website and apps. Functions may be changed, extended or discontinued for objective technical, legal, security or economic reasons, subject to applicable legal and contractual requirements. Statutory information, update, warranty and consumer rights remain unaffected.
Professional use must take account of the law, contracts, standards and technical rules applicable at the relevant time. Older app versions, printouts, export files or locally saved versions may be outdated. Users must give appropriate consideration to available security- and function-related updates and changes to professional or legal requirements.
13. Liability and mandatory statutory rights
SchelloLabs develops and maintains the website and apps with reasonable care. Nevertheless, errors, technical faults or discrepancies cannot be ruled out in every case.
Statutory liability provisions apply. In particular, these legal notices do not exclude any liability that may not lawfully be excluded or limited, including liability for intent, gross negligence, injury to life, body or health, under product liability law, under guarantees given or under other mandatory statutory provisions.
Statutory warranty rights, consumer rights and other mandatory rights remain unaffected. These notices do not alter individually agreed rights and obligations between SchelloLabs and the user.
14. Provider, contact and further legal information
SchelloLabs – Marcus Schellstede
Pirschweg 22
26160 Bad Zwischenahn
Germany
Telephone: +49 4486 3684202
Email: info@schellolabs.de
Website: https://www.schellolabs.de
Legal notice and provider details:
https://www.schellolabs.de/impressum/
Privacy Policy:
https://www.schellolabs.de/datenschutz/
Help & Support:
https://www.schellolabs.de/support/
Terms of use for apps (Apple Standard EULA, unless a different EULA has been validly incorporated for the respective app):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Last updated:
© 2026 Marcus Schellstede - SchelloLabs . Alle Rechte vorbehalten.
APPS MADE IN PETERSFEHN - GERMANY