Privacy Policy
Last updated: 30 October 2026
This policy explains how Yieldra handles your information. The app is provided by Volkan Günay (Vomcore). Contact: hello@vomcore.com.
Short version
No account, no sign-up, no advertising and no AI service. Yieldra has no server of its own and does not use the camera, your photos, your location or your contacts. Every calculation happens on your iPhone; the only network use is verifying purchases and sending the few usage counts described below.
What is stored on your device
- Registers: the values in the TVM registers.
- Tape: the last 200 lines of your calculations.
- Saved problems: the problems you choose to save.
- Worksheets: the inputs you entered on each worksheet.
- Preferences: the number of decimal places, and whether you have finished the first-run screens.
None of this leaves the device. Deleting the app removes all of it.
Payments
Yieldra Pro is sold as a weekly, monthly or yearly subscription, or as a one-time lifetime purchase. Purchases are handled by the App Store and we never see your payment details. Whether your purchase is active is verified through RevenueCat, Inc. using an anonymous identifier that contains no name, email, calculation data or advertising ID.
Usage counts
To understand how the app is used and improve it, Yieldra sends RevenueCat a few values tied to the same anonymous identifier: what opened the Pro screen and how many times it has opened, and, for the very first time, where it opened and how many calculations you had finished before it; how many calculations you have completed (counted up to 10) and the date of the first; whether your one free Pro result was used; which worksheet you open most; which worksheet first showed a locked result and when, and which one locked again after its free result; whether you tried to save a problem; and the date you closed the cash-flow tip card. They never include amounts, rates, your registers, tape or saved problems. These counts are not linked to your identity, are not used for advertising and are not sold.
What we do not do
No advertising SDK, no tracking pixel, no fingerprinting, no data broker, no tracking across apps. We do not sell your data and do not use it for advertising.
Children
Yieldra is not directed at children under 13 and does not knowingly collect personal information from them.
Your rights and contact
We hold no account and no personal profile. Your data is on your device and deleting the app removes it. The only things kept on our side are the anonymous purchase record and the usage counts at RevenueCat; to have them deleted, write to the address below (the record is anonymous, so we may ask for your App Store receipt to find it). For any question, write to hello@vomcore.com.
Changes
If this policy changes, the date at the top changes with it and the new text is published here before the version that relies on it ships.