Privacy Policy
MoveLens · Last updated 9 October 2026
Your videos stay on your device, and so does the live camera picture. The only information that leaves it is anonymous usage and crash data. Version 1.2 has no ads; versions 1.0 and 1.1 show one banner ad from Google.
MoveLens is made by SwiftyApp. This policy explains what the app does with data, and what it does not do.
Your videos
Videos you import are copied into MoveLens’s own storage on your device, byte for byte, with no re-encoding. They are never uploaded, never sent to me, and never shared with anyone else. Notes and favourites you add stay on the device alongside them.
Saved videos are excluded from iCloud backup, so they do not consume your iCloud storage. This also means they are not restored to a new device from a backup, and that deleting MoveLens deletes them.
There is no account and no sign-in. Nothing you do in MoveLens is tied to an identity I hold.
The camera
From version 1.2, compare mode can show your front camera beside a video, so you can watch yourself next to the original as you move. It is a live picture on your screen and nothing more: nothing the camera sees is recorded, saved or sent anywhere. MoveLens does not use the microphone.
Compare mode opens with the camera on, so iOS asks for camera access the first time you open it. If you say no, compare mode still works with a second video in place of the camera.
What is collected
Usage analytics — Google Firebase Analytics
MoveLens records anonymous events describing how the app is used: which screens are opened, how videos are imported, which features are used, and the steps of the in-app purchase flow. That includes the fact that the camera was turned on in compare mode, never anything it saw, and which of the three free days of compare mode has been used. It also records a small number of properties about the install — how many videos are saved and roughly how much space they take, both as broad ranges rather than exact numbers, whether the purchase has been made, and whether the app was installed before version 1.2. No filenames, no video content and no notes are ever included.
Firebase also records a small amount of information on its own: an identifier for the app install, the device model, iOS version and app version, the country or region, and when the app was first opened and used.
Crash reports — Google Firebase Crashlytics
If MoveLens crashes, a report is sent on the next launch containing the crash itself, the device model, iOS version and app version, an identifier for the app install, and a short trail of what the app was doing beforehand. That trail is drawn from a fixed list of app actions; by design it cannot contain a filename or anything you typed. The report also says how many videos are saved and how much space they take, whether two panes were on screen, and whether the purchase has been made. The same kind of report is sent, without a crash, when importing, saving or deleting a video fails, or a purchase does. It says what went wrong and leaves out the file’s name and location.
Advertising — Google AdMob
Version 1.2 has no ads, and Google’s advertising software is no longer part of the app.
Versions 1.0 and 1.1 show one banner ad unless Remove Ads has been bought. In those versions Google receives the technical information it needs to serve and measure that ad, such as device and general location information and an ad identifier. Updating to 1.2 ends this.
No version of MoveLens asks for permission to track you or reads Apple’s advertising identifier (IDFA). The app is built against the version of Google’s analytics library that omits it entirely.
Purchases
MoveLens has one optional purchase, processed entirely by Apple: Unlock Compare in version 1.2, called Remove Ads in versions 1.0 and 1.1. I receive no payment details — only whether an Apple Account is entitled to the purchase.
Version 1.2 also reads, from the App Store’s record of your original download, which version of MoveLens you first installed, so that people who had the app before 1.2 keep compare mode without paying.
The free days of compare mode
In version 1.2, compare mode is free on the first three days you use it. MoveLens keeps those dates, three at most, on your device. They are not sent to me or to Google, and they are deliberately kept when the app is deleted, so that reinstalling does not start the free days again.
Why
Analytics and crash reports exist to tell me which parts of the app are used and what is broken, so that the next version is better. The banner ad paid for versions 1.0 and 1.1; from version 1.2 the one-time purchase does instead.
Who receives data
Google, as the provider of Firebase Analytics and Crashlytics, and of AdMob in versions 1.0 and 1.1, and Apple, as the operator of the App Store handling purchases. Nobody else. Data is not sold, and there is nothing to sell — none of it is tied to a person.
Children
MoveLens is not directed at children and does not knowingly collect information from anyone under 13.
Your choices
- Updating to version 1.2 removes the ads and everything that came with them. In versions 1.0 and 1.1, buying Remove Ads stops ad requests.
- iOS Settings → Privacy & Security → Camera turns MoveLens’s camera access on or off at any time.
- MoveLens has no consent prompt and no switch for analytics or crash reports: both are on from the first launch, in every country.
- Deleting MoveLens removes every video and note it holds, immediately and permanently. The record of free days described above is the one thing that stays on the device.
- To ask what is held about your install, or to have it deleted, write to info@swiftyapp.ca. Because nothing is tied to an identity, I may need the approximate dates and the device in order to find anything at all.
Changes
If this policy changes, the date at the top changes with it, and material changes are noted on this page.
- 9 October 2026: Rewritten for version 1.2, which has no ads, turns the Remove Ads purchase into Unlock Compare with three free days, and adds the live camera to compare mode. This page also used to say that MoveLens is not offered in the European Economic Area or the United Kingdom. That was wrong: MoveLens is available in every country, and the sentence is gone.