Privacy Policy

• Publisher and data controller: Appli Magine, SAS with share capital of €100, SIREN 948 141 593, 5 Jardin Jean de Ockeghem, 37000 Tours, France
• Contact: support@captarget-archery.com
• Apps covered: Video Delay for iPhone, and Video Delay for Mac (the control room)
• Last updated: 6 October 2026

In short

There is no account to create, no profile, no third-party advertising and no third-party tracker. Your videos and their sound stay on your phone, unless you agree to the sending described below.

The app sends three things to our servers:

• usage counts: daily totals, such as "one more take was filmed at 120 frames per second today";
• your answers to the first-launch questionnaire, also added to totals, and the arrow speed measured on each take, with nothing that points to you;
• only if you agree, and only if you shoot archery, the takes on which key moment detection went wrong, so that we can improve it.

None of this carries your name, email address, phone number, location or an advertising identifier. The first two can be switched off in the app's settings, Privacy > Anonymous usage statistics; the third is off until you turn it on. This page says exactly what leaves, when, and what we do with it.

What the app keeps on your phone

In the app's private storage:

• your takes: videos filmed in the app or imported from your photo library, their thumbnail, the sound recorded beside them (for archers), the lines you drew on them, and what the analysis found (key moments, arrow speed, time at anchor);
• your settings: delay, quality, frame rate, grid, lines, skeleton, your sports, the distances entered for the speed calculation, your choices about usage statistics and sending takes, and how many videos have been sent;
• a random identifier for this iPhone, used only so that a Mac control room recognises it on your local network;
• the anonymous identifier and tokens described below, which let our servers turn away abusive writes;
• a queue of takes waiting to be sent, if you agreed to sending: it is emptied once they are sent, after seven days, or as soon as you decline.

You delete a take from the app's gallery, and everything the app keeps by deleting the app. Takes are not included in your iCloud backups. A take you saved to Photos stays there until you delete it from Photos.

Camera, microphone and photos

Camera. It films to show you your movement on a delay. The picture stays in the phone's memory over a rolling window, and nothing is kept until you record. The skeleton and key moment detection are computed on the phone. The camera is also used to read a control room's QR code.

Microphone (archers only). It is only requested if you chose archery. It hears the arrow leave the bow and hit the target, to place those two moments on the take and estimate the arrow's speed. The last thirty seconds of sound are held in memory; when a take is recorded, its sound is stored beside it, in the app, and deleted with it. It is not added to the videos you save to Photos. It only leaves the phone through the optional sending described below.

Photos. The app never has access to your whole photo library. To analyse a video, you pick it yourself in the iOS picker, and the app receives only that one. To save a take to Photos, the app asks only for permission to add, not to read.

What travels between your devices

Up to four iPhones can send their picture to Video Delay on a Mac. The devices find each other through Bonjour (_videodelay._tcp), on your local network or directly from device to device, without Wi-Fi.

What travels then: the iPhone's random identifier, its type and generic device name ("iPhone"), its battery level, temperature and orientation, and the video. The Mac advertises its computer name to devices on the network while "Discoverable" is on. The link is encrypted (TLS with a key derived from the four-digit code, and AES-GCM for the video): a device without the code cannot connect. Nothing goes over the internet, and the Mac keeps neither the video nor the device.

The "Local Network" permission is used for this feature only. Refusing it stops nothing else.

What is sent to our servers

Usage counts

When the app opens, when it closes and on some actions, the app adds one to a daily total. What is counted:

• new installations, installations used that day, number of opens;
• recorded takes, by length (10, 20, 30, 60 or 120 seconds) and by frame rate (30, 60, 120 or 240 frames per second);
• videos imported from the photo library, shots detected, key moments found (setup, anchor, release, impact), speeds and times at anchor measured;
• layers used (grid, lines, skeleton), live mode, the delay range chosen (3 to 7, 8 to 14 or 15 to 20 seconds), a session with or without a control room, the type of link, a session slowed down by heat;
• time spent on each use, in bands (under 30 seconds, 1, 2, 5, 10, 20, 30, 60 minutes, more);
• taps on the link to the CapTarget Archery app.

A count carries neither your identifier, nor your country, language or phone model. The phone decides whether it has already been counted today; only the "+1" leaves.

The first-launch questionnaire

It asks how you found the app and which sports you mean to use it for. The sport sets the app up: archery turns on the microphone, arrow detection and statistics. You can change it at any time in Settings. The questionnaire is only asked when the phone is online.

Each answer is a "+1" on a total. If you choose "Something else", you can write a few words (60 characters at most). Those words are stored on their own, with the day's date, and read by us to complete the lists: do not put your name in them. An installation can answer only once.

Arrow speeds

For each take whose speed was measured, the app sends the speed, the distances and temperature you entered, your draw length, and where the take came from (filmed or imported), with the day's date. We use this to check and improve the calculation. No identifier is attached.

The anonymous identifier and abuse prevention

So that nobody can skew the totals, our servers only accept a write from a genuine copy of the app (Apple App Attest, through Firebase App Check) signed in with an anonymous Firebase account. The app creates that account itself: it holds no name and no email address. It is a random identifier for your installation, not an identifier of you as a person.

Beside it, we keep a small record for each installation: the day of its first write, how many writes it made each day, and whether it has already answered the questionnaire. This record does not say what was counted. We do not try to match these records with the totals or the answers, and will not.

As with any online service, our providers receive your device's IP address when something is sent. We do not keep it in our data.

If the phone has no connection, or Low Data Mode is on, nothing is sent and the count is simply lost.

Switching this off

In the app's settings, Privacy > Anonymous usage statistics. Off, the app sends none of the above: no count, no questionnaire answer, no speed, and it no longer signs in to the anonymous account. The app works exactly the same.

Optional sending of poorly detected takes (archers)

This is the only sending that contains a video, and it is off until you agree to it. The app offers it during an analysis; you can turn it on or off at any time in Settings, which shows how many videos have been sent.

Once you agree, a take is sent only if the analysis found some key moments and missed others, and if it lasts 35 seconds or less. Thirty takes an hour at most, over Wi-Fi only. A video picked from your photo library and analysed in the app can be sent the same way.

What is sent:

• the video, scaled down to 720p, with its sound;
• the sound the app recorded during the take, if there is one;
• what the analysis found (moments, times, speed), the day's date, the app version, the phone model (for example "iPhone17,1") and the iOS version.

All of the video file's metadata, location included, is removed before sending. Nothing links the take to your anonymous identifier. It is stored under a fingerprint computed from the file itself, which stops the same video being sent twice.

Please note: a video shows you. Even without a name, it is personal data. These takes are viewed by the team training the detection model, and used for that alone. Avoid turning this on if other people appear in your takes without their consent.

Turning sending off stops all future sending and empties the queue. To have a take that was already sent deleted, see "Your rights".

The CapTarget Archery card

If you chose archery, Settings presents the CapTarget Archery app, from the same brand, with a link to its App Store page. It is the app's only promotion. It relies on no data about you: every archer sees the same card. A tap on that link is counted like other actions, and opens the App Store, where Apple's terms apply.

Why, and on what basis

• Counts, questionnaire, speeds and the abuse-prevention record: our legitimate interest in knowing whether the app is used, which features to maintain, and checking that our measurements are right, without knowing anything about you. You can object at any time with the switch in Settings.
• Sending takes: your consent, which you can withdraw at any time in Settings.

We sell no data, make no advertising use of it, and build no profile.

Who processes this data

Our servers are Google Firebase's (Authentication, App Check, Cloud Firestore, Cloud Storage), which acts on our instructions as a processor. Google may process data outside the European Union, under the safeguards provided by the GDPR (the EU-US adequacy decision and standard contractual clauses). Apple checks that the app is genuine (App Attest) and distributes it.

We include no crash-reporting tool, no ad network, no tracker and no third-party SDK. Apple may share aggregated statistics with us in App Store Connect if you agreed to share analytics with developers in Settings > Privacy & Security > Analytics & Improvements.

How long

• Daily totals, questionnaire answers and speeds: as long as they help follow how the app is used over time. They are numbers with nothing that points to you.
• Your installation's abuse-prevention record: each day's number of writes is deleted automatically 60 days later. The day of the first write and whether the questionnaire was answered are kept as long as the app is published, so that an installation cannot answer twice.
• Takes sent: as long as they are used to train and evaluate the detection model, and at the latest until that work stops.
• On your phone: until you delete the take or the app.

Children

The app is not aimed specifically at children and asks them for nothing personal. If you are under 15, only turn on sending takes with a parent's agreement. A parent can ask us to delete a take that was sent, as described below.

Your rights (GDPR)

You have the right to access your data, to have it corrected or erased, to object to its processing, to restrict its use, and to withdraw your consent at any time.

Because we do not know who you are, we can only find "your" data if you give us a way to:

• For a take that was sent: write to us with the original video, or a copy of the take. We compute the same fingerprint as the app, find the take and delete it.
• For counts and the record: totals hold nothing that relates to you. Deleting the app ends your anonymous identifier: a new installation creates a new one.

To exercise these rights: support@captarget-archery.com. We reply within one month. You can also complain to the CNIL (www.cnil.fr) or to the data protection authority where you live.

Changes

If this policy changes, the date at the top of the page will change, and the current version will be published at this address. A change that extended what the app sends would be announced in the release notes and, if it concerns sending takes, you would be asked again.

Contact

support@captarget-archery.com