Terms of use and sale
Last updated: November 12, 2026
1. Purpose
These terms govern the use of the formulaThis Android app, the formulaThis web app (app.formulathis.com) and the formulathis.com website (together, “formulaThis”), as well as subscriptions to formulaThis Premium.
formulaThis is published by Nans Baro, sole proprietor (entrepreneur individuel), SIRET 10382717600019, 9 rue de l’Appel de Diane, 34990 Juvignac, France (the “Publisher”).
By creating an account or using formulaThis, you accept these terms.
2. Account
An account is required to use the web app and to sync your documents across your devices. You agree to provide a valid email address and to keep your credentials confidential. Any activity carried out from your account is deemed to be carried out by you.
If you are a minor, you must obtain the consent of a parent or legal guardian before purchasing a paid subscription.
3. Plans and prices
formulaThis offers a free plan and a monthly or annual Premium subscription. What each plan includes, any limits and prices including tax are shown on the Pricing page.
When a free trial is offered, its length is shown before you subscribe. Unless you cancel before the trial ends, the paid subscription starts automatically at the end of the trial.
The Publisher may change the content of its plans and its prices. A new price applies from the next renewal, after prior notice to the subscriber, who may cancel before that date.
One-time Premium purchases made in the Android app before subscriptions were introduced remain valid under the terms of the plan purchased.
4. Reseller and payment
On the web, our order process is conducted by our online reseller Paddle.com, the Merchant of Record for all our web orders. Paddle handles payment, invoicing, VAT or the sales tax applicable in your country, as well as billing and refund inquiries. Orders are also subject to Paddle’s buyer terms.
In the Android app, purchases are processed by Google Play and are subject to Google Play’s terms.
5. Term, renewal and cancellation
Subscriptions renew automatically at the end of each period. You can cancel at any time using the link in Paddle’s email, or from Google Play for a subscription purchased on Android. Cancellation takes effect at the end of the current period, and you keep Premium access until then.
6. Right of withdrawal
You have 14 days from your first web payment to withdraw, even if you have started using Premium. You will then receive a full refund. To exercise this right, use the link in Paddle’s confirmation email or write to contact@aromathiz.com.
For purchases on Android, Google Play’s refund policy applies. See also our refund policy.
7. End of your Premium subscription
When your subscription ends, your account automatically returns to the free plan. Your documents are not deleted.
You can still open and export them (PDF, LaTeX), within the limits of the free plan. Premium-only features are no longer available: for example, if you exceed the free plan’s document limit, you can no longer create new documents, but your existing documents remain accessible.
If you subscribe to Premium again, all features become available again on all your documents.
Your documents are only deleted if you delete your account, or under the inactive account deletion rules set out in the privacy policy, after a warning email.
8. Use of the service
You agree to use formulaThis fairly and lawfully. In particular, you must not:
- publish or store unlawful content, or content that infringes the rights of others;
- attempt to access other users’ accounts or data;
- disrupt the service, deliberately overload it, or circumvent its technical limits or security measures;
- resell or share access to your Premium account with third parties.
9. Your content
You remain the sole owner of the documents you create with formulaThis, and solely responsible for their content.
You grant the Publisher only the right to host, store, sync and display your documents, to the extent strictly necessary for the service to work. This right ends when your documents or your account are deleted.
10. Intellectual property
formulaThis, its code, interface, layout templates, formula library and trademarks remain the property of the Publisher. You are granted a personal, non-exclusive right to use the service for as long as you use it.
The documents you export (PDF, LaTeX, images) belong to you and may be used freely, including for commercial or educational purposes.
11. Access to the service
The Publisher strives to keep the service continuously available, without guaranteeing that it will be free of interruptions (maintenance, updates, technical incidents).
The Publisher may change the features of formulaThis. If an essential Premium feature were removed during your subscription, you could cancel and request a refund for the remaining period.
12. Liability
The Publisher takes reasonable measures to secure and back up your documents. We nevertheless recommend that you regularly export your important documents (PDF or LaTeX).
The Publisher is not liable for indirect damages, or for the use you make of documents created with formulaThis. Nothing in these terms limits the Publisher’s liability where the law does not allow it, or your rights as a consumer.
13. Suspension and closure of your account
You can delete your account at any time from Account > Delete my account. Deleting your account does not cancel an active subscription: cancel it first.
In the event of a serious breach of these terms, the Publisher may suspend or close your account after notifying you by email, except in an emergency or where required by law. You will then be able to export your documents for a reasonable period, unless their content is unlawful.
14. Personal data
The processing of your personal data is described in the privacy policy.
15. Changes to these terms
The Publisher may change these terms. In the event of a significant change, you will be notified by email or in the app before it takes effect. If you do not accept the new terms, you may cancel your subscription and delete your account.
16. Language
These terms are available in several languages. In the event of any discrepancy between versions, the French version prevails.
17. Governing law and disputes
These terms are governed by French law. If you are a consumer, this choice does not deprive you of the protection of the mandatory rules of your country of residence, and you may bring proceedings before the courts of that country.
If you have a problem, please contact us first at contact@aromathiz.com: we will look for an amicable solution.
Disputes relating to payment, invoicing or refunds of a purchase fall under Paddle for web purchases, and under Google Play for Android purchases.
For a dispute with a business located in another European Union country, you can also contact the European Consumer Centre in your country.
18. Contact
Email: contact@aromathiz.com
Phone: +33 9 54 54 50 35