Score a paper target from a photo: what the app does, and what you check

1. Pick the target. Each card shows how it will be scored: “Works offline”, “Free AI” or “AI credits”. Then set the series, shots per series, ammunition, gun and range.
2. Photograph it with the camera, which shows a guide circle to line the outer ring up with, or pick a photo from your library.
3. The app finds the target, straightens the perspective, finds the holes and scores them. If you picked a full-size card and the photo shows a smaller practice paper of the same card, it switches to the matching one on its own.
4. Check the result. Tap a shot to move or delete it, press and hold to add one that was missed, and save when the number of shots is right. The app will not save a series with the wrong number of shots.

You get the shots marked on the target, a score for each, the total for the series, and three numbers for the group: mean radius (MR), extreme spread (ES) and the mean point of impact (MPI). They are described below.

The app’s own detector runs on the phone for every photo. For some cards that is the whole scoring, with no internet needed, and the card says “Works offline”. For the others the app can send the photo to an AI service, which finds the holes, and the card says “Free AI” while the AI allowance on that card lasts, and “AI credits” after that. Those scans still count among your first 10 free scans, and the AI allowance on a card is limited and shared with other users, so it can run out.

• Built into the app are the 10 m air pistol cards, at 4.5 mm, and a group of .22 precision pistol cards: the 25 m cards of several bodies and the ISSF 50 m pistol card. On the built-in list, another calibre on the same card goes to AI; a card promoted from real scans does not depend on the bullet.
• When you save a scan the app may compare what its detector found with the shots you saved and send Shooter only the result: four numbers (the shots you saved, holes found, matched, and in the same ring), plus which card, the app and detector versions and a random scan id, and your random device identifier if “Link usage data” is on. No photo, no positions, no scores. A card whose detector agrees often enough can move to the phone.
• On most scans you can ask for AI from the menu on the result page, “Analyze with AI”. On a card that already scores on the phone, that costs a credit.

If a card cannot be scored on the phone and you do not want AI, you place the shots yourself on the photo, and they are scored like any others.

The first 10 scans are free. They are counted over the life of the install, and on iOS the count also survives a reinstall. Every scan counts, whether it is from the camera or the library, scored on the phone or with AI. A scan that gives no result, because no target is found or no shots and no AI result come back, is not counted against your free scans.

When they are used up, Pro lifts the limit on scanning. Without Pro you can still type scores in by hand, without where the shots landed. AI credits are a separate thing, bought on their own: an AI scan past the AI allowance costs 1 credit. The app shows the cost on the paid row and asks first when a scan that looked free turns out to cost a credit. Pro does not pay for AI scans, and credits do not lift the scan limit: only Pro does. Without Pro, after the 10 scans, you type scores in by hand.

• No account is needed. The app uses a random identifier made on the phone.
• A scan on the phone needs no internet. With “Share target photos” off, no photo leaves the phone.
• AI scoring needs internet and sharing turned on. The photo of an AI scan then goes to an AI service that the privacy policy names. Some photos, also from cards that score on the phone, may be kept without your name or contact details to improve the app. The app asks once whether it may send photos. After you say yes it sends them without asking each time, until you turn sharing off.
• Pseudonymous usage statistics and crash reports go to Shooter’s analytics and crash-reporting services, without photos or shot data. The app also sends the detector measurements described above, and your purchase identifier goes to RevenueCat.

Each shot is scored on your phone from where it sits on the target, measured from the target’s centre as a share of its radius, with the target’s own rings. The size of the bullet comes from the ammunition you picked, so changing the ammunition scores all the shots again, and a shot you move or add is scored at once.

In Insights, a percentage called Group Size compares your group with the aiming mark.

• Look at every result before you save. A hole on a ring line, or two holes close together, can be misread. The app gives no figure for how often it is right, so do not assume one.
• If it cannot find the target it says so: retake it with the whole target in frame and evenly lit. If it finds no holes, it suggests better light, or you can place the shots yourself.
• It does not tell you whether your scores meet any requirement. That is for you, your club and the federation.

A saved scan stays on your phone in the history, with the gun, ammunition and range you gave. You can tick it as a club session yourself, which is your own mark. The check a club does against the paper target is described in checking a score against the paper target.

Do I need an account to scan?

No. There is no sign-up. The app uses a random identifier made on your phone.

Does scanning need internet?

Not for a card that is scored on the phone. AI scoring does, and it needs “Share target photos” turned on.

Is my photo sent anywhere?

Only if sharing is on. Then a photo may be uploaded: for an AI scan to an AI service that the privacy policy names, and for some cards it may also be kept, without your name, to improve on-phone detection. With sharing off, no photo leaves your phone.

What happens after the free scans?

Pro lifts the limit. Without Pro you can type scores in by hand, as in logging shots by hand.