Terms & Conditions

VarioPulse · Last updated 19 September 2026

VarioPulse turns your phone's barometer into an acoustic variometer. It is a secondary instrument for sport use, not a certified flight instrument.

1. Who you are agreeing with

VarioPulse is published by Safiye Meram, Esenler/Istanbul, Türkiye. You can reach the publisher at gelistirbizi@gmail.com. By installing or using the app you accept these terms. If you do not accept them, do not use the app.

2. Safety, which is the important clause

VarioPulse is a backup and training aid. It is not certified, not approved for navigation, and not a substitute for a hardware variometer, an altimeter, a licensed instructor or your own judgement.

  • Never plan or continue a flight on the basis of what this app shows you alone.
  • Barometric altitude depends on the QNH you set and on the weather. It can be wrong by hundreds of metres if the setting is stale.
  • Phone sensors fail, batteries die, screens go dark in the cold and operating systems stop background work without warning.
  • Fly within your licence, your rating, your equipment limits and the airspace and maritime rules that apply where you are.

You are solely responsible for the conduct of your flight or your passage. To the fullest extent the law allows, the publisher accepts no liability for any loss, injury or damage arising from reliance on the app.

3. What the app needs from your device

The app reads the barometric pressure sensor, the accelerometer and, with your permission, your GPS position. These are used to compute altitude, vertical speed, ground speed, glide ratio, wind and your track. Permission can be withdrawn in system settings at any time; the app keeps working with fewer instruments.

4. Free and Pro

The free version is fully usable: altitude, vertical speed, the instrument panel and flight recording up to fifteen minutes per flight. VarioPulse Pro adds the acoustic variometer, voice callouts, the thermal drift map, wind estimation, IGC, GPX and CSV export, and unlimited recording.

Pro is sold as a one time lifetime unlock or as a yearly subscription. Payment is charged to your store account at confirmation. A subscription renews automatically unless it is cancelled at least twenty four hours before the period ends, and it is managed and cancelled in your store account settings, not in this app.

Purchases on Apple platforms are also governed by the Apple Standard EULA. Refunds are handled by the store you bought from, not by the publisher.

5. What you may not do

  • Reverse engineer, decompile or redistribute the app, except where the law expressly allows it.
  • Use the app as a primary flight instrument or represent it as a certified one.
  • Use exported flight files to make a claim you know to be false, for example in a competition or an online contest.

6. Your flight data belongs to you

Flights are recorded into a database on your own device. The publisher has no copy and no way to obtain one. Exporting, sharing and deleting flights is entirely under your control.

7. Availability and changes

The app is provided as is. Features may change between versions, and support for older operating systems ends when the platform vendor ends it. Material changes to these terms will appear on this page with a new date.

8. Governing law

These terms are governed by the laws of the Republic of Türkiye. Mandatory consumer rights in your own country of residence are not affected.

9. Contact

Questions about these terms: gelistirbizi@gmail.com