Tornu Golf

PRIVACY POLICY

Your swing data stays on your devices.

Tornu has no account and no login. Every swing it records is written to your iPhone and Apple Watch and stays there. No swing measurement, no session, no video and no club information is ever sent anywhere.

Two things do leave, both tied to your purchase: the check that tells the app whether you have paid, and — alongside it — a rough count of how many swings you have saved, in bands. Neither carries any measurement. Below is the full inventory: each kind of data the app handles, where it is stored, and whether any of it is sent anywhere.

What Tornu handles

Swing measurements
Backswing and downswing timing, tempo, where acceleration peaked, club label, session names and dates.
ON DEVICE
Motion sensor readings
Accelerometer and gyroscope samples from your Apple Watch, analyzed on the watch and discarded.
ON DEVICE
Camera video
Held in memory while you watch the replay, then released. Never written to storage or exported.
MEMORY ONLY
Your club bag and settings
Club names and lengths, appearance, tolerance, playback preferences.
ON DEVICE
Watch ↔ iPhone sync
Sessions move directly between your paired devices using Apple's Watch Connectivity. No server sits in between.
DEVICE TO DEVICE
Health permission
Requested only to run a workout session, which keeps the motion sensors awake while the screen is off. Nothing is written to Health, and nothing is read from it.
NOTHING STORED
Purchases and subscriptions
Payment is processed by Apple. Subscription status is verified by RevenueCat, which receives a randomly generated identifier, the product purchased, and your device model and OS version.
APPLE · REVENUECAT
Saved-swing count, in bands
How many swings you have saved in total, reported only as a band — none, 1 to 9, 10 to 29, 30 to 49, or 50 and over. It is sent to RevenueCat alongside the subscription check, and only when the band changes. It tells us whether people run out of free swings or stop before they get there. It carries no timing, no tempo, no crest, no club and no session — only how many.
REVENUECAT
Subscription status
Whether Pro is active is stored on your devices and mirrored between your iPhone and Apple Watch, so the watch knows without checking in with anyone.
DEVICE TO DEVICE
Support email
Only if you write to us. We keep the thread to answer you and use it for nothing else.
EMAIL ONLY

Green — stays on your devices. Amber — sent, for the reason stated.

Purchases and subscriptions

Tornu is free to download and includes a set number of saved swings. Continuing past that requires a subscription or a one-time purchase.

Apple handles the payment. We never see your card number, your billing address, or your Apple Account. Apple's own privacy policy governs everything on their side of the transaction.

To know whether your purchase is active, Tornu uses RevenueCat as its billing provider. RevenueCat receives four things: a randomly generated identifier, the product you bought, your device model and operating system version, and the band your saved-swing count falls in. That identifier is created by the app and is not linked to your name, your email address, or your Apple Account — because Tornu never asks for any of them.

No swing measurement, video, session history or club information is ever sent to RevenueCat or to us. The part of the app that handles purchases and the part that measures your swing share almost nothing: the answer to a single question — is this person subscribed — and a count of how many swings have been saved, with nothing attached to it.

If you reinstall Tornu or move to a new device, Restore Purchases uses that same identifier to match your subscription back to you.

Auto-renewing subscription

Tornu Pro is available as a monthly or annual auto-renewing subscription, or as a single one-time purchase. Prices are shown in your local currency on the purchase screen inside the app.

  • Payment is charged to your Apple Account at confirmation of purchase.
  • A subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period.
  • Your Apple Account is charged for renewal within 24 hours of the end of the current period, at the same price unless you are notified otherwise.
  • You can manage or cancel a subscription at any time in Settings → your name → Subscriptions on your iPhone.
  • Cancelling stops future renewals. The current period continues until it expires.
  • The one-time purchase does not renew and is not a subscription.

Refunds are handled by Apple, not by us. Requests go through reportaproblem.apple.com.

Full terms of use are on the Terms of Use page. Purchases are also governed by Apple's standard End User License Agreement.

Data not collected

  • No advertising, and no advertising identifiers.
  • No analytics or crash-reporting services.
  • No tracking across other apps or websites, and nothing shared with data brokers.
  • No access to your contacts, your location, or the microphone.
  • No account to create, so no personal details to hand over in the first place.

Apart from the subscription check described above, Tornu makes no network requests. It has no server of its own, so there is nowhere for your swing data to be sent even in principle.

Deleting your data

Everything Tornu stores is on your own devices, so all of it is yours to remove.

  • One session: swipe to delete it in Review.
  • Everything: Settings → Your Data → Reset All Data. This clears both your iPhone and your Apple Watch.
  • Permanently: delete the app. Nothing survives it, because nothing was held anywhere else.

Settings → Your Data → Back Up Sessions writes a file you keep. Where you store it is your choice, and once it leaves the app it's outside our control.

Use by children

Plenty of people learning a golf swing are children, and Tornu works the same way whatever your age. It's a general-audience app rather than one built for children, but a junior golfer can use every part of it.

No personal information is collected from anyone, children included. There's no account to create, and the app never asks for a name, email address, date of birth, or location. It shows no advertising. Swing data stays on the child's own devices, on exactly the same terms as an adult's.

Purchases go through the Apple Account that owns the device, so they're covered by Apple's own family purchasing and parental controls.

A parent or guardian can clear everything at any time: Settings → Your Data → Reset All Data wipes both devices, and deleting the app removes the rest.

Revisions to this policy

We'll post any changes on this page and update the date below. If a change means Tornu starts collecting something it doesn't collect today, we'll say so directly.

Contact

Questions about this policy go to support@tornugolf.com.

Tornu Golf · Privacy Policy · Effective September 23, 2026