For iPhone, iPad & Mac

Shoot.
Photograph.
Analyze.

The scorebook for the modern sporting shooter.

Target Detect on iPhone, lying on a Birchwood Casey bullseye target alongside a Sig Sauer pistol and magazine — a scorebook for the modern sporting shooter

The loop

Three Steps. One Target.

  1. 01

    Shoot

    Start a session. Log the range, the firearm, the conditions — whatever you'd write in a paper book. An optional timer and audio shot detection are there when you want them.

  2. 02

    Photograph

    Capture the target right in the app. That's all there is to it.

  3. 03

    Analyze

    On-device machine learning finds your shots and scores the target — almost never with a correction needed. The session lands in your history, where patterns surface that a paper book could never show you.

Multi-discipline
by design.

Target Detect was built for the precision shooter and the IDPA shooter, the bullseye match and the police qualification course. It scores NRA bullseyes, Appleseed targets, IDPA silhouettes, qualification targets — most paper targets you'd hang on a backer.

Machine learning does the hard part — finding shots and marking them — so scoring runs at the speed of the next magazine, not the speed of a pencil. That makes it practical to track disciplines that used to be too tedious to score by hand.

“You can't improve what you can't measure.”

Measurement

Finally, real accuracy data.

Without feedback, every shooter plateaus.

Group size measures one session. CEP measures progress.

A 3-inch group from three shots and a 3-inch group from fifteen tell very different stories — but they look identical on a scorecard. Target Detect's primary metric is Circular Error Probable, reported twice over: from your point of aim (accuracy) and from your point of impact (precision). Both hold up across sessions, disciplines, and shot counts. Group size is tracked too — for completeness, not comparison.

Aggregate a season of practice into numbers that actually mean something. Then watch them move.

Simple by design.

No calibration. No alignment. No setup. Photograph the target, tell the app what you fired and how far you stood, and the scoring, statistics, and history happen on their own.

The whole point is that measuring your accuracy on every target is finally practical, not a paper-and-pencil chore.

Reports

Tables. Plots. Trends.

Target Detect doesn't just record your sessions — it dissects them. Your data shows up three ways: questions answered, geometry visualized, history tracked.

Tables

The breakdown.

Performance broken down by ammo, distance, and firearm. Which load is actually shooting tightest? Which rifle has improved since the new optic? The breakdowns answer it.

Plots

The geometry.

Shot placement on the target, MOA spread analysis, and overlaid groupings that compare different ammo types side by side.

Trends

The long game.

Scores, shot count, flyer rate, and CEP over your whole history. Accuracy (relative to point of aim) and precision (relative to your actual center of impacts) are reported separately — because they're different problems with different fixes.

Across your devices

Practice on iPhone.
Study on iPad and Mac.

Target Detect isn't a resized iPhone build. The iPad and Mac versions use purpose-built split layouts — the target on one side, the data on the other — so the dense reports finally have the room they were drawn for.

Session detail on iPad — scored target on the left, full analysis with score, group, CEP, and per-shot table on the right
Every session, one glance. The target and the numbers, side by side.
Shot MOA polar plot on iPad — 804 shots plotted with POA and POI CEP rings

Plots, full breath.

Shot placement, MOA spread, ammo-type overlays — the kind of geometry that wants space.

Accuracy CEP trend on iPad — wide bar chart of per-session CEP with full session list beneath

Trends, full season.

A year of CEP across the top, the session list beneath. The patterns reveal themselves on a bigger screen.

Privacy

Your data stays on your devices.

Neither Target Detect nor any third-party service has access to your scorebook. No analytics, no advertising or attribution SDKs, no third-party services of any kind. Target Detect doesn't phone home, doesn't ship logs to a backend, and doesn't ask you for an account.

  • One-time purchase. Updates included forever.

    Buy it once. Every future update is yours, free. No subscription, no “version 2.0” upsell.

  • No account, no sign-up.

    It uses iCloud, already on your phone.

  • Synced through iCloud to all your Apple devices.

    Apple encrypts your data in transit and at rest.

  • Export anytime.

    Shot data exports as CSV, target images as PNG — standard formats, readable anywhere. Your data isn't locked into the app.

Built like a tool, not a service.

Ready for your next round?

Download Target Detect from the App Store.

Download on the App Store

Requires iPhone or iPad on iOS 18 or later, or a Mac with Apple Silicon.

FAQ

Questions, answered honestly.

Is my data end-to-end encrypted in iCloud?

Apple's standard encryption protects it in transit and at rest. If you use Advanced Data Protection on your Apple ID, it's end-to-end encrypted as well.

How does the app score my targets?

A machine learning model trained specifically on shooting targets finds the shots and scores them automatically. The model runs entirely on your phone — your photos are never uploaded anywhere — and is accurate enough that most users rarely need to adjust anything. When you do, every shot can be moved, added, or removed manually.

What if my target photo is at an angle or poorly lit?

The in-app camera includes perspective correction and lighting filters for cleaning up awkward shots. Most users never need them — the ML model handles a wide range of photo quality on its own — but they're there when a photo needs help before scoring.

What is CEP and why use it instead of group size?

CEP (Circular Error Probable) is a statistical measure of accuracy — the radius of the circle that contains a defined share of your shots. Unlike group size, it isn't thrown off by a single flyer and it's comparable across different shot counts and sessions. That means a three-shot string and a fifteen-shot string can be measured on the same scale, and a year of sessions can be aggregated into trends that actually mean something.

What's different about the Flyer report?

Standard flyer-detection methods use mean and standard deviation — both of which the flyers themselves distort. Target Detect uses the modified Z-score with Median Absolute Deviation (MAD) instead, a robust-statistics method where the baseline can't be biased by the outliers it's identifying. The math is well-known in robust statistics; the application to flyer detection is original to this app — useful when you want to track diagnostic patterns (technique slippage, equipment issues) separately from your CEP trend.

Can the developer see my scorebook?

No. Target Detect syncs through your own iCloud account using Apple's CloudKit. The developer has no API path to read what you store. The only thing we ever see is an image you choose to attach when emailing for support.

Do you collect analytics or use third-party services?

No. The app doesn't phone home — on launch, in the background, or otherwise.

Is there a subscription?

No. Target Detect is a one-time purchase from the App Store. Buy it once, own that copy.

Will I have to pay for future updates?

No. Every update to Target Detect is included with your one-time purchase — new features, design refreshes, iOS compatibility, all of it. Buy it once; that's the deal forever.

Does it work without internet?

Yes. The app runs entirely on-device. Internet is only needed if you want iCloud sync between devices.

Does Target Detect use my location?

Only if you choose to enable it. With location turned on, the app can recognize which range you're at and prefill the range field for new sessions — that recognition happens entirely on your device. Location is off by default and never leaves your phone.

Can I export or back up my scorebook?

Yes — two separate features for two different needs:

  • Export produces CSV files (shot data) and PNG files (target images) for use outside the app — open in a spreadsheet, share, or print.
  • Backup & restore produces a JSON archive of your full scorebook (data and photos). iCloud already covers the common case automatically — lose your phone, get a new one, everything's there. Backup/restore is for what iCloud can't do: moving across Apple IDs, archiving offline, or seeding a fresh install.
What happens to my data if I uninstall?

It stays in your iCloud — that's yours, not the app's. Reinstall on any device signed into the same Apple ID with iCloud enabled, and your scorebook syncs back. You can also wipe it whenever you want from Settings → Apple ID → iCloud → Manage Account Storage.

What devices does it run on?

iPhone or iPad running iOS 18 or later, or a Mac with Apple Silicon.