01Agreement
These Terms of Use govern your use of the InvoiceOak: Invoice Maker mobile app ("InvoiceOak", "the app"), published by Barrens Soft, the studio name of Daniel Yankov, an independent developer ("we", "us"). By installing or using the app you accept these terms. If you do not accept them, do not use the app. Our Privacy Policy explains how we handle personal data.
02Licence to use the app
We grant you a personal, non-exclusive, non-transferable, revocable licence to install and use the app on devices you own or control, for running your own business or professional activity. You may not copy, modify, distribute, sell, rent, reverse-engineer or decompile the app, except where the law expressly allows it. We keep all rights in the app, its design, templates and code that are not expressly granted to you.
03Your account
The app creates an anonymous account on first launch. You can link it with Google, Apple or an email and password so you can restore it later. You are responsible for keeping your sign-in details and your device secure. You can delete your account at any time in Settings → Account → Delete account.
04Your documents and legal compliance
You are responsible for the documents you issue. That includes the correctness of the data you enter (your business and tax details, your clients' details, prices, tax rates and exemptions), the numbering you use, and whether a document meets the tax, accounting, invoicing and consumer-protection rules that apply to you.
The app provides country templates, tax-rate presets, required-field checks and standard legal wording to help you. These are aids, not tax, accounting or legal advice, and tax rules change. If you are unsure, ask a qualified accountant or tax adviser.
In some countries invoices must be sent through a government e-invoicing or fiscal clearance system (for example, to obtain an official invoice number or a fiscal receipt). The app marks the countries where it knows this applies and cannot issue compliant invoices there. It is your responsibility to use a compliant system where one is required.
05Your data and backups
Your business data is stored on your device and is not synced to the cloud. You are responsible for keeping backups, for example with the backup and export features, and for keeping issued documents for as long as the law requires. We are not responsible for data lost because a device is lost, damaged, reset, or the app is uninstalled.
06Free version and ads
The app can be used for free with limits, for example a monthly number of issued invoices, and some features are only available with InvoiceOak Pro. The free version shows ads on list screens and may offer optional rewarded videos. We may change the free tier's limits and features in the future; any change will apply going forward and will not remove documents you have already created.
07Paid plans
The following purchases are offered in the app. Prices, currency and billing period are shown in the app and in the store before you confirm.
| Product | Type | What it gives you |
|---|---|---|
| InvoiceOak Pro, monthly | Auto-renewing subscription, billed monthly | Pro features, no ads |
| InvoiceOak Pro, yearly | Auto-renewing subscription, billed yearly. Eligible new subscribers get a 7-day free trial. | Pro features, no ads |
| InvoiceOak Pro, lifetime | One-time purchase | Pro features, no ads, no renewal |
| Remove ads | One-time purchase | Removes ads; does not include Pro features |
All payments are processed and billed by Google Play or the Apple App Store under their terms. We do not process or store payment details. Purchases are linked to the store account you used, and you can restore them in the app with "Restore purchases".
08Free trial, auto-renewal and cancellation
- Payment is charged to your Google Play or Apple ID account when you confirm the purchase, or at the end of the free trial if you started one.
- Free trial: if you do not cancel at least 24 hours before the 7-day trial ends, it converts automatically into a paid yearly subscription. Trial eligibility is decided by the store.
- Subscriptions renew automatically for the same period and at the price then in effect, unless you turn off auto-renewal at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the period ends. If the price changes, the store will inform you as its rules require.
- Cancel at any time in your store settings: on Android, Google Play → Payments & subscriptions → Subscriptions; on iPhone and iPad, Settings → your name → Subscriptions. Cancelling stops future renewals; Pro remains active until the end of the paid period.
- Uninstalling the app or deleting your account does not cancel a subscription.
09Refunds
Refunds are handled by Google or Apple according to their policies: Google Play refund policy, Apple: request a refund. We cannot issue refunds for store purchases ourselves. Nothing in these terms limits any statutory rights you have as a consumer.
10Acceptable use
You agree not to use the app to create false, fraudulent or misleading documents, to evade taxes, or for any unlawful purpose, and not to interfere with the app, its services or other users.
11Third-party services
The app relies on services from Google (Firebase, AdMob, Google Play) and Apple (App Store, Sign in with Apple), and on your device's mail app and print services. Their availability and terms are outside our control.
12Changes to the app
We may update, change or discontinue features of the app. If we discontinue the app, we will aim to keep export and backup working so you can take your data with you. Paid lifetime purchases give you Pro features for as long as we make the app available.
13Disclaimer
The app is provided "as is" and "as available". To the extent permitted by law, we do not guarantee that it will be error-free or uninterrupted, or that templates, tax presets and legal wording will be complete, current or correct for your situation.
14Limitation of liability
To the extent permitted by law, we are not liable for indirect or consequential losses, lost profits, lost data, or penalties, taxes or interest arising from documents issued with the app. Our total liability to you for any claim is limited to the amount you paid for the app in the 12 months before the claim. Nothing in these terms excludes or limits liability that cannot be excluded or limited by law, including for intent or gross negligence, or your mandatory rights as a consumer.
15If you use the app on iPhone or iPad
These terms are between you and us, not Apple. Apple is not responsible for the app or its content, has no obligation to provide support or maintenance for it, and is not responsible for any claims relating to it. If the app fails to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price (if any); to the maximum extent permitted by law, Apple has no other warranty obligation. Apple and its subsidiaries are third-party beneficiaries of these terms and may enforce them against you. The Apple Standard EULA also applies where it does not conflict with these terms.
16Termination
You can stop using the app and delete your account at any time. We may suspend or end your access if you seriously breach these terms. The sections on responsibility for documents, disclaimer, limitation of liability and governing law continue to apply after termination.
17Governing law
These terms are governed by the laws of the Republic of Bulgaria. If you are a consumer, you also keep the protection of the mandatory laws of the country where you live, and you may bring a claim in the courts of that country. The European Commission's online dispute resolution information is available at consumer-redress.ec.europa.eu.
18Changes to these terms
We may update these terms. The effective date at the top shows the current version. If a change is significant, we will tell you in the app before it takes effect. Continuing to use the app after that means you accept the updated terms.
19Contact
Barrens Soft (Daniel Yankov) · apps@barrenssoft.com
See also our Privacy Policy.