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Legal Notices for Website and Apps

Legal Notices

Last updated: 2 July 2026

Provider: SchelloLabs – Marcus Schellstede

These legal notices apply to the SchelloLabs website and to the apps provided by SchelloLabs, in particular:

* HOAI-Rechner

* E|Rechner

* AbÄppelApp

* ÜbergabePro

* PrüfPro

These notices supplement the legal notice/imprint, the Privacy Policy and the applicable terms of the Apple App Store. They do not replace individual legal, technical, tax, economic or professional advice.

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1. Content of the online offering

The contents of this website and the related app information have been prepared with the greatest possible care.

However, no guarantee is given for the accuracy, completeness or timeliness of the content, calculations, notes, illustrations, technical information or app descriptions provided.

As a digital service provider, the operator is responsible for its own content in accordance with the general statutory provisions. Obligations to remove or block the use of information under general laws remain unaffected.

The information provided on the website or in the apps is intended for general information, orientation, calculation, documentation or organisation. It does not constitute a binding assurance of specific properties, results or legal consequences.

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2. Use of the “HOAI-Rechner” app

The “HOAI-Rechner” app is used for calculation-based orientation and structured presentation of fee estimates under the German Fee Structure for Architects and Engineers on the basis of the data entered and settings selected by the user.

The app does not replace individual contract review, verifiable fee determination, legal advice or a final professional, economic or legal assessment in an individual case.

The following are always decisive:

* the contractual agreements between the parties,

* the applicable statutory provisions,

* the fee, procurement and contractual bases applicable in the individual case,

* the agreed service profiles and service phases,

* the project-specific boundary conditions,

* and the professional and technical requirements.

Use of the app is at the user’s own responsibility. Results must be checked independently before use and assessed in the respective project context.

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3. Use of the “E|Rechner” app

The “E|Rechner” app serves as a digital working aid for electrical calculations, technical assessments and structured documentation in the fields of electrical installation, building technology, construction sites, planning and inspection.

The app does not replace standards-compliant planning, installation, inspection, acceptance or assessment of electrical systems in an individual case.

The displayed results, notes and assessments are non-binding calculation and orientation aids. They must be independently checked by a qualified electrician or competent electrical professional and assessed in the relevant technical, normative and construction-related context.

The following are always decisive:

* the applicable standards, regulations and generally recognised rules of technology,

* in particular the relevant DIN, DIN VDE, VDE, DGUV and other technical rules and regulations,

* the technical connection conditions and requirements of the network operator,

* the manufacturer’s specifications for the equipment and components used,

* the project-specific boundary conditions,

* the actual installation, environmental and usage conditions,

* and the professional assessment by a qualified electrician or competent electrical professional.

Use of the app is at the user’s own responsibility. Calculation results must be professionally checked for plausibility before planning, installation, inspection, documentation or disclosure.

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4. Use of the “AbÄppelApp” app

The “AbÄppelApp” app is used to organise stable communities, tasks, duties, members, horses, calendars, absences, documents and shared processes.

The app is a digital organisational aid. It does not replace individual arrangements, contractual agreements, stable rules, liability arrangements or professional assessment in the handling of animals.

The tasks, duties, reminders, calendar entries, substitute arrangements, bookings or notes displayed in the app are based on entries made by the respective users, administrators or members of the stable community.

The following are always decisive:

* the actual agreements within the stable community,

* the applicable stable rules,

* individual arrangements between stable operator, horse owners and members,

* animal welfare and safety-related requirements,

* and independent control by the persons involved.

SchelloLabs does not guarantee that tasks are entered, transferred, completed or displayed completely, on time or correctly.

Responsibility for the organisation, control and performance of the respective tasks lies with the users, administrators and persons involved in the stable community.

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5. Use of the “ÜbergabePro” app

The “ÜbergabePro” app is used for the structured creation, management and documentation of handovers, objects, projects, photos, documents and PDF reports.

The app is a documentation aid. It does not replace legal review, acceptance under statutory or contractual provisions, technical inspection, expert assessment or binding determination of legal consequences.

The handover reports, photos, notes, defect descriptions or PDF documents created with the app are based on the entries made by the respective user.

The following are always decisive:

* the actual findings on site,

* the contractual agreements between the parties involved,

* statutory and technical requirements,

* project-specific documentation obligations,

* and the professional assessment by the responsible persons.

Use of the app is at the user’s own responsibility. Before disclosure or use of a handover report, the content must be independently checked by the user for completeness, accuracy and appropriateness.

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6. Use of the “PrüfPro” app

The “PrüfPro” app is used for the creation, management and documentation of inspection reports, inspection findings, projects, photos, documentation and PDF outputs.

The app is a digital documentation and working aid. It does not replace professional inspection, standards-compliant measurement, safety-related assessment, acceptance or expert evaluation in an individual case.

The inspection reports, findings, defect notes, photos, documentation or PDF reports created with the app are based on the entries made by the respective user.

The following are always decisive:

* the inspection actually carried out on site,

* the applicable standards, regulations and generally recognised rules of technology,

* in particular relevant DIN, DIN VDE, VDE, DGUV and other technical rules and regulations,

* manufacturer’s specifications,

* project-specific and system-specific boundary conditions,

* and the professional assessment by a qualified and responsible person.

Use of the app is at the user’s own responsibility. Inspection results and documentation must be independently checked before use, disclosure or archiving.

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7. Pro functions, one-time purchases, subscriptions and App Store processing

Individual functions of the apps may be offered as paid Pro functions. Depending on the app, these may include in particular:

* PDF outputs,

* CSV exports,

* project functions,

* saved calculations,

* extended documentation,

* project reports,

* iCloud synchronisation,

* CloudKit Sharing,

* extended organisational functions,

* or other additional functions.

Where Pro functions are offered as an in-app purchase, one-time purchase or automatically renewable subscription, purchase, billing, renewal, cancellation and restoration are carried out via the Apple App Store and the Apple user account used there.

The prices, terms, durations and information displayed in the App Store are decisive.

The availability of individual functions may depend on:

* the respective app version,

* the platform used,

* the operating system,

* the region,

* the App Store account,

* the technical development status,

* and the availability of Apple services.

SchelloLabs does not receive complete payment data such as credit card numbers or bank details. Payment processing is carried out by Apple.

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8. App functions, availability and further development

SchelloLabs continuously develops its apps further. Functions may be expanded, changed, replaced or removed where this is technically, legally, economically or professionally necessary or appropriate.

There is no entitlement to specific functions remaining permanently available unchanged unless expressly agreed otherwise.

The use of individual functions may depend on:

* the installed app version,

* the device used,

* the operating system version,

* the system settings,

* permissions granted,

* active iCloud use,

* existing Pro or subscription entitlements,

* and the technical availability of external services.

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9. iCloud, CloudKit and synchronisation

Some SchelloLabs apps may use iCloud synchronisation or CloudKit Sharing.

These services are technically provided by Apple. SchelloLabs does not operate its own servers for app content such as projects, calculations, reports, stable communities, photos or documents.

The availability, synchronisation speed and functionality of iCloud and CloudKit may depend on factors outside the control of SchelloLabs, in particular:

* Apple ID and iCloud account,

* iCloud settings,

* network connection,

* device status,

* storage space,

* Apple system availability,

* operating system version,

* conflicts between multiple devices or participants.

SchelloLabs does not guarantee uninterrupted, complete, error-free or delay-free synchronisation via iCloud or CloudKit.

Users are responsible for checking, backing up and, where necessary, additionally exporting or otherwise archiving important content.

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10. Documents, PDF, CSV and sharing functions

The apps may generate, export or provide documents, PDF files, CSV files, photos or other content via system sharing functions.

The user decides at their own responsibility whether and to whom such content is disclosed.

Before export or transmission, the content must in particular be checked for:

* accuracy,

* completeness,

* personal data,

* confidential information,

* technical plausibility,

* legal usability,

* project-specific requirements,

* and possible third-party rights.

SchelloLabs has no influence over how recipients, third-party apps, cloud services, email programs, AirDrop, file apps or other services further process exported content.

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11. Photos, camera and documentation

Some apps may use camera or photo functions for documentation purposes.

The user is responsible for checking before taking, storing, exporting or disclosing photos whether third-party rights, personality rights, data protection requirements, copyrights, property rights or other protected rights are affected.

Photos may contain confidential or personal information, for example persons, licence plates, project documents, technical installations, building information, customer data or other content requiring protection.

Use of photos within the apps is at the user’s own responsibility.

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12. No legal advice, no tax advice, no professional technical planning

The SchelloLabs website and apps do not constitute legal advice, tax advice, business consulting, construction supervision, professional technical planning, inspection, acceptance or expert services in an individual case.

The content, calculations, notes and documentation functions provided are intended to support the user. They do not replace independent review by qualified persons.

For legal, tax, technical, safety-related or economic matters, an appropriately qualified professional should be consulted.

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13. No guarantee for economic, technical, normative or legal results

The results determined by the apps constitute non-binding calculation, orientation, organisational or documentation aids.

No guarantee is given for specific economic, contractual, technical, normative, tax or legal results.

Responsibility for checking, assessing, using and disclosing the results lies with the respective user.

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14. Liability

SchelloLabs is liable in accordance with statutory provisions for damages arising from injury to life, body or health and for damages caused by intentional or grossly negligent conduct.

In all other respects, liability for simple negligence is limited, where legally permissible, to the foreseeable damage typical for the contract in the event of a breach of material contractual obligations.

Material contractual obligations are obligations whose fulfilment is essential for the proper use of the respective app or offering and on whose compliance the user may regularly rely.

Any further liability is excluded to the extent permitted by law.

Mandatory statutory liability provisions remain unaffected.

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15. External links

This website and the apps may contain links to external third-party websites.

SchelloLabs has no influence over the content of these external sites. The respective provider or operator is always responsible for the content of linked pages.

Permanent monitoring of linked pages is not reasonable without specific indications of a legal infringement. If corresponding legal infringements become known, such links will be removed without delay.

When external links are accessed, the terms of use and privacy policies of the respective provider apply.

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16. Copyright

The content, texts, graphics, app representations, calculation logic, layouts, structures, designs, documentation and other works created by SchelloLabs are subject to German copyright law.

Reproduction, editing, distribution, making publicly available or other exploitation outside the limits of copyright law requires the prior written consent of the respective rights holder.

Downloads, copies, printouts and screenshots are permitted only for private, internal or project-specific use, provided that no conflicting rights are infringed.

Commercial reuse, systematic adoption, publication or disclosure of app content, texts, layouts or calculation logic is not permitted without prior written consent.

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17. Trademarks and product names

Where product names, brand names, standards designations, system designations, manufacturer names or other protected designations of third parties are mentioned on this website or within the apps, they are trademarks or designations of the respective rights holders.

Their use is exclusively for descriptive, technical or informational purposes.

No affiliation, recommendation, certification, partnership or cooperation with the respective rights holders exists unless expressly stated otherwise.

Apple, iPhone, iPad, Mac, iCloud, CloudKit, App Store, StoreKit, TestFlight, AirDrop and other Apple designations are trademarks or designations of Apple Inc.

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18. Standards, regulations and technical sources

Where the apps or website refer to standards, technical rules and regulations, laws, guidelines, manufacturer specifications or other sources, this serves professional orientation.

Standards, regulations and technical rules may change. The version valid and applicable in the specific case is always decisive.

The apps cannot ensure that all legal, technical, normative or project-specific requirements of an individual case are fully covered.

Users are responsible for independently checking the applicable rules, manufacturer specifications and project-related requirements.

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19. Third-party content and user entries

Where users enter, store, export or share their own content in apps, they are responsible for this content.

This applies in particular to:

* project data,

* customer data,

* names of persons,

* photos,

* documents,

* inspection reports,

* handover reports,

* stable communities,

* calendar data,

* technical information,

* notes,

* and other content entered by users.

Users must ensure that they are entitled to enter, store, process and disclose this content and that no third-party rights are infringed.

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20. Changes to these legal notices

SchelloLabs may amend these legal notices if legal requirements, technical functions, app offerings or factual circumstances change.

The current version will be made available on the website.

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21. Provider

SchelloLabs – Marcus Schellstede

Pirschweg 22

26160 Bad Zwischenahn

Germany

Email: support@schellolabs.de

Phone: +49 4486 3684202