---
title: "Terms of Use — Develak Website & iOS Apps"
description: "Terms for develak.com and Develak apps: Apple EULA license, subscriptions and auto-renewal, refunds via Apple, and safety limits of health and sports apps."
url: https://develak.com/terms-of-use/
language: en
updated: 2026-10-04
source: Develak
translations:
  fr: https://develak.com/fr/conditions-utilisation.md
---

Canonical page: <https://develak.com/terms-of-use/>

# Terms of Use

Last updated October 4, 2026

These Terms of Use set the rules for using develak.com and the apps that Develak, the iOS app studio of PRIOMAT LLC, publishes on the App Store. They explain how our apps are licensed, how in-app purchases and subscriptions work, and the safety limits of our health, sports and measurement apps. Please read them, in particular the health and safety information.

## About these terms

- **Who we are.** Develak is a brand of PRIOMAT LLC, a limited liability company registered in the State of New Mexico, USA, 2105 Vista Oeste St NW, Suite E-1324, Albuquerque, NM 87120, USA (“Develak”, “we”, “us”).
- **What they cover.** These terms apply to our website, develak.com, and to every app we publish on the App Store for iPhone, iPad and Mac (the “apps”).
- **Acceptance.** By using the website or an app, you agree to these terms. If you do not agree, please do not use them.
- **Related documents.** Our [Privacy Policy](https://develak.com/privacy-policy/) explains how we handle personal data, our [Terms of Sale](https://develak.com/terms-of-sale/) apply to the services we provide to clients, and our [Legal Notice](https://develak.com/legal-notice/) identifies the publisher and host of the website.

## Using our website

- The website presents our studio, our services and our apps. Its content is provided for general information only and is not professional, medical, legal or financial advice.
- We work to keep it accurate and up to date, but app information (versions, ratings, prices, availability) comes from the App Store and may change at any time. The App Store listing always prevails.
- We may change, suspend or interrupt the website, for example for maintenance, without notice.
- Search engines and AI assistants are welcome to access and index the website, provided they respect our robots.txt file and do not overload our servers. We publish a [llms.txt](https://develak.com/llms.txt) file and Markdown versions of our pages for this purpose.
- You may quote short extracts of our content, with attribution to Develak and a link to the source page.

## App license

Our apps are licensed, not sold. Unless an app’s App Store page or the app itself presents a different license agreement, your use of each app is governed by Apple’s [Licensed Application End User License Agreement](https://www.apple.com/legal/internet-services/itunes/dev/stdeula/) (the “Standard EULA”).

- These terms supplement the Standard EULA. If they conflict on the license of an app, the Standard EULA prevails.
- The license is personal, non-exclusive and non-transferable, and lets you use the app on the Apple devices you own or control, as permitted by the App Store usage rules.
- Apple is not responsible for our apps or their content and has no obligation to provide maintenance or support for them. We provide support ourselves: see [develak.com/#contact](https://develak.com/#contact).

## In-app purchases and subscriptions

Our apps are free to download. Some features are available through optional in-app purchases: auto-renewable subscriptions (for example monthly or yearly) and, in some apps, a one-time lifetime purchase. All purchases are sold and billed by Apple through the App Store.

- **Prices.** The price, duration and content of each plan are shown in the app before you buy, in your local currency. They may vary by country and may change; Apple informs you of any price increase for an active subscription and, where required, asks for your agreement.
- **Payment.** Payment is charged to your Apple Account when you confirm the purchase or, for a free trial, when the trial ends.
- **Auto-renewal.** A subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Your account is charged for renewal within the 24 hours before the end of the current period, at the price of the plan.
- **Managing and cancelling.** On iPhone or iPad, go to **Settings > [your name] > Subscriptions**. On a Mac, open the App Store, click your name, then **Account Settings > Subscriptions > Manage**. Cancelling stops the next renewal; you keep access until the end of the period already paid. Deleting an app does not cancel its subscription.
- **Free trials.** Some plans, usually the yearly plan, include a free trial for eligible new subscribers. Unless you cancel at least 24 hours before the trial ends, it converts into a paid subscription. Any unused portion of a free trial is forfeited when you purchase a subscription.
- **Lifetime purchases.** A lifetime purchase is a single, non-renewing payment that unlocks the premium features described at the time of purchase, for as long as we make the app available, on the devices linked to your Apple Account.
- **Restoring.** Use “Restore Purchases” in the app to recover your purchases on a new device signed in to the same Apple Account. Where the app supports it, purchases may be shared with your family through Family Sharing.

## Cancellations and refunds

Because Apple processes all payments, we cannot issue refunds ourselves and never see your payment details. To request a refund, go to [reportaproblem.apple.com](https://reportaproblem.apple.com/) or contact Apple Support. Apple decides on refunds under its own policies.

If you have a statutory right of withdrawal, as consumers in the European Union and the United Kingdom do, you exercise it with Apple under the [Apple Media Services Terms and Conditions](https://www.apple.com/legal/internet-services/itunes/). If something does not work as expected, please [tell us](https://develak.com/#contact): we will do our best to help.

## Health apps: important safety information

Several of our apps help you keep records about your health and well-being, including Pillio (medication reminders), Seizly (seizure diary), Rangewell (INR and warfarin log), Goutly (gout and uric acid), Cystra (PCOS symptoms), Vialora (TRT injection log), Skillwise (DBT diary card), Contrastly (cold plunge and sauna) and HIIT Timer Pro (interval training). Please keep the following in mind:

- **They are tracking and journaling tools, not medical devices.** They do not diagnose, treat, cure, monitor or prevent any disease or condition, and they do not replace a doctor, pharmacist, therapist or other qualified health professional.
- **Never change your treatment because of an app.** Do not start, stop or change a medication or a dose — for example your warfarin dose after an INR reading, or a testosterone dose — on the basis of information shown by an app. Always follow the instructions of your doctor, pharmacist or anticoagulation clinic.
- **Reminders can fail.** Notifications depend on your device and its settings (notification permissions, Focus, silent mode, battery, system updates). Do not rely on an app as your only way to take an essential medication on time.
- **Charts are not interpretations.** Trends, patterns, target ranges and calculations only reflect the data you entered, which may be incomplete or wrong. They are not medical interpretations. Seizly does not detect or predict seizures. Skillwise complements therapy and never replaces it.
- **Exercise and temperature exposure carry risks.** Cold water immersion, sauna and high-intensity training can cause cold shock, fainting, heat illness or heart problems. Ask your doctor before starting, especially if you are pregnant or have a heart condition or high blood pressure. Never cold plunge alone, and stop immediately if you feel unwell. Programs and protocols in our apps are suggestions, not instructions.
- **In an emergency, do not use an app: call your local emergency number** (for example 911 in the United States, 112 in Europe). If you are in crisis or thinking about harming yourself, contact emergency services or a crisis line, such as 988 in the United States or 3114 in France.

## Sports, measurement and hobby apps: safe use

### Sports and outdoor apps

- **ApexLap** must only be used on closed circuits and tracks where timing is allowed, **never on public roads**. Respect the track rules, mount your device securely and never handle it while driving. GPS timing and telemetry can be inaccurate.
- **XC Log** is a logbook, not a flight instrument. Do not use it for navigation, airspace, weather or safety decisions in flight. Reserve repack reminders are an aid; you remain responsible for maintaining your equipment according to the manufacturer’s instructions.
- **Bottomtime** is a logbook, not a dive computer or dive planner. Never use it to plan a dive, decompression stops or flying after diving. Follow your dive computer, your training and your certification agency’s rules.
- **Cogbook** estimates component wear from distance. Its estimates are indicative: have safety-critical parts such as brakes, chain and tires checked by yourself or a mechanic.

### Measurement tools

- **dB Meter Pro** is not a certified sound level meter. Its readings depend on your device’s microphone and are indicative. Do not use them for regulatory, legal, occupational health or evidential purposes.
- **Ratewell** is not a certified timegrapher. Its measurements depend on your microphone and environment and are indicative. Do not rely on them alone for servicing decisions or warranty claims.

### Hobby and lifestyle apps

- **Turfwise** calculates doses as an aid. Always read and follow product labels and local regulations when applying fertilizers or pesticides.
- **Cone6** stores glaze recipes and firing logs. It does not certify that a glaze is food-safe: have it tested, and follow your kiln manufacturer’s instructions and the safety data sheets of your materials.
- **Reeflo** dosing helpers are indicative. Test your water before dosing your aquarium.
- **Cedary** and **Corkwell** are intended for adults of legal age to buy tobacco and alcohol where they live.
- **Feltbook** is a personal record-keeping tool. It offers no gambling, betting or real-money play. Please follow the laws of your country and play responsibly.

In every case, you remain responsible for how you use the information in our apps. Use your own judgment, follow applicable laws and safety rules, and seek professional advice where appropriate.

## Your data and backups

- The content you create in our apps belongs to you. We claim no rights over it and, as explained in our [Privacy Policy](https://develak.com/privacy-policy/), we do not receive it.
- Your data is stored on your device and, if you enable it, in your own iCloud account. Because we do not hold a copy, we cannot recover lost data for you.
- You are responsible for keeping backups: turn on iCloud sync where available, back up your devices and use the export features (PDF, CSV and others) regularly.

## Acceptable use

When using the website or our apps, you agree not to:

- use them in breach of the law or of the rights of others;
- attempt to gain unauthorized access to our systems, disrupt them or test their vulnerabilities without our permission — if you find a security issue, please report it to [contact@develak.com](mailto:contact@develak.com);
- send spam, malicious code or abusive messages, including through the contact form;
- copy, modify, decompile or reverse-engineer the apps, except where the law expressly allows it;
- circumvent in-app purchases, or resell, rent or redistribute the apps or their premium features.

## Intellectual property

The website and the apps, including their text, design, graphics, icons, screenshots, software and the names “Develak” and the names of our apps, belong to PRIOMAT LLC or its licensors and are protected by copyright and trademark laws. Apart from the rights expressly granted in these terms and in the Standard EULA, no rights are transferred to you.

If you send us ideas or suggestions, we may use them freely to improve our apps, without any obligation towards you.

## Apple trademarks

Apple, the Apple logo, iPhone, iPad, Mac, Apple Watch, iCloud and App Store are trademarks of Apple Inc., registered in the U.S. and other countries and regions. Develak is not affiliated with or endorsed by Apple Inc. Other product and company names mentioned on the website or in our apps are the property of their respective owners and are used for identification only.

## Third-party services

Our apps rely on services provided by Apple (App Store, iCloud, Apple Health, Apple Weather, Apple Maps) and, in some apps, on services you connect yourself, such as the AI providers used by Xlocalize or App Store Connect used by Appviary. These services are governed by their own terms, and their availability is beyond our control. You are responsible for complying with their terms and for any fees they charge, such as AI usage billed by the provider of your API key.

## Client projects

When a client hires Develak to design, develop, optimize or maintain an app, the engagement is governed by our [Terms of Sale](https://develak.com/terms-of-sale/) and by a written quote (or statement of work or contract) accepted by both parties. The quote sets out the scope, price, schedule and payment schedule; the Terms of Sale explain how invoices are paid, how services are delivered, and how cancellations and refunds work. The descriptions of our services on this website are general information, not a binding offer. No service can be bought or paid for directly on this website.

## Disclaimer of warranties

We build our apps with care and test them thoroughly, but no software is free of errors. To the extent permitted by law, the website and the apps are provided “as is” and “as available”, without warranties of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose, accuracy and non-infringement. We do not guarantee that they will be uninterrupted, error-free or compatible with every device or system version.

Nothing in these terms affects the statutory rights you have as a consumer, in particular any legal guarantee of conformity that applies to digital content in your country.

## Limitation of liability

To the extent permitted by law:

- we are not liable for indirect, incidental, special or consequential damages, nor for loss of data, profits, revenue or goodwill, arising from the use of or inability to use the website or the apps;
- our total liability for all claims relating to the website and the apps is limited to the greater of the amount you paid for the app or subscription concerned during the 12 months before the event giving rise to the claim, or 50 US dollars.

These limitations do not apply to liability that cannot be limited or excluded by law, such as liability for death or personal injury caused by negligence, for fraud, or for gross negligence or willful misconduct, and they do not affect your mandatory rights as a consumer.

## Changes to our apps and termination

- We regularly improve our apps and may add, change or remove features. We may also stop offering an app. In that case, we will try to give reasonable notice in the app or on this website, and to keep export features available so that you can take your data with you.
- Your license to use an app ends automatically if you fail to comply with these terms or the Standard EULA. You may stop using an app at any time by deleting it and cancelling any subscription.

## Governing law and disputes

- The Standard EULA contains its own governing law clause, which applies to the license it grants.
- For everything else, these terms are governed by the laws of the State of New Mexico, USA, without regard to its conflict of laws rules, and the state and federal courts located in New Mexico have jurisdiction. The United Nations Convention on Contracts for the International Sale of Goods does not apply.
- If you are a consumer, this choice of law does not deprive you of the protection of the mandatory provisions of the law of your country of residence, and you may also bring proceedings before the courts of your country of residence.
- Before taking any action, please contact us at [contact@develak.com](mailto:contact@develak.com): most issues can be resolved quickly and amicably.

## Changes to these terms

We may update these terms, for example when we launch a new app or feature or when the law changes. The date at the top of this page shows the latest version. If a change is significant, we will announce it on this website and, where appropriate, in the apps. Continuing to use the website or an app after a change takes effect means you accept the updated terms; if you do not, stop using them and cancel any subscription.

## General provisions

- These terms, the Standard EULA and our Privacy Policy form the entire agreement between you and us regarding the website and the apps.
- If a provision is found invalid or unenforceable, the other provisions remain in effect.
- Our failure to enforce a provision is not a waiver of our right to do so later.
- We may transfer our rights and obligations under these terms to a successor, for example if our apps are sold; your rights as a consumer are not affected.
- These terms are available in English and in French. In case of discrepancy, the English version prevails, unless the mandatory law of your country provides otherwise.

## Contact us

- E-mail: [contact@develak.com](mailto:contact@develak.com)
- App support and contact form: [develak.com/#contact](https://develak.com/#contact)
- Mail: PRIOMAT LLC (Develak), 2105 Vista Oeste St NW, Suite E-1324, Albuquerque, NM 87120, USA

## Questions about this page?

Write to us: we read every message and reply personally.

[contact@develak.com](mailto:contact@develak.com)

---

*Markdown version of <https://develak.com/terms-of-use/> for AI assistants, published by Develak. Links lead to the web pages; add .md to a page URL for its Markdown version. Site index: <https://develak.com/llms.txt>.*