# Notch

> Notch is an iPhone app that scores shooting target cards from a photo using on-device machine learning, analyses your groups and tracks every session.

Notch is an app for iPhone and Apple Watch. App Store name: Notch: Target Scoring Tracker. App Store id 6747980153: https://apps.apple.com/app/id6747980153. This website is its official site. Publisher: Drobinin Limited. Support: support@notch.vision.

## What it does

- Scores shooting target cards from a photo with on-device machine learning.
- Supports NSRA, ISSF rifle and pistol, NRA smallbore, DSB, ICFRA F-Class and crossbow targets.
- Measures group size and spread, builds heat maps and ring distributions.
- Flags technique patterns such as trigger pull, breathing and fatigue.
- Tracks sessions by rifle, range and date, with trends.
- Live Activities, Apple Watch app and widgets.
- Exports sessions as PDF or CSV and cards as images.
- Works offline; photos stay on the device.

## Pages

- [Home](https://notch.vision/)
- [Target scoring](https://notch.vision/target-scoring/): Score a card from a photo.
- [Shot analysis](https://notch.vision/shot-analysis/): Group size, heat maps and ring breakdown.
- [Sight calculator](https://notch.vision/sight-adjustment-calculator/): How many clicks move the group to centre.
- [Coaching](https://notch.vision/coaching/): Find the fundamental to work on next.
- [Sessions](https://notch.vision/sessions/): Track range days, rifles and trends.
- [Export](https://notch.vision/export/): Share cards and reports with your club.
- [Shots going left](https://notch.vision/shots-going-left/): Your shots consistently land left of centre.
- [Shots going right](https://notch.vision/shots-going-right/): Your shots consistently land right of centre.
- [Shooting high](https://notch.vision/shooting-high/): Your shots are consistently high.
- [Shooting low](https://notch.vision/shooting-low/): Your shots are consistently low.
- [Vertical stringing](https://notch.vision/vertical-stringing/): Vertical stringing suggests breathing issues.
- [Horizontal spread](https://notch.vision/horizontal-spread/): Horizontal dispersion points to trigger control.
- [Stringing](https://notch.vision/stringing/): Your shots form a line pattern.
- [Inconsistent groups](https://notch.vision/inconsistent-groups/): Your shot grouping lacks consistency.
- [Flyers](https://notch.vision/flyers/): A few shots land well outside the group.
- [Fatigue](https://notch.vision/fatigue/): Performance drops off during the session.
- [Printable targets](https://notch.vision/printable-targets/): Practice faces at true size, ready to print.
- [Questions](https://notch.vision/faq/)

## Questions and answers

Q: What is Notch?
A: Notch is an iPhone app that scores shooting target cards from a photo, analyses your groups and tracks your sessions. The scoring runs on your phone.

Q: What target types does Notch support?
A: NSRA cards are the primary format. ISSF and air-rifle targets work too, with more disciplines added over time.

Q: Does Notch need internet?
A: No. Core ML runs the scoring on-device. No photos leave your phone.

Q: Can Notch tell me what I'm doing wrong?
A: It flags common group-shape patterns. A tight cluster low and right usually means trigger pull, and a vertical string through centre is breathing through the shot. Cumulative heat maps show the patterns across sessions.

Q: Can I compare across different rifles or range days?
A: Yes. Every scored card is saved with rifle and date. Trend analysis across sessions shows per-rifle performance and whether this week's groups are tighter than last week's.

Q: Is there an Apple Watch app?
A: Yes. It shows active sessions and recent scores, for when your iPhone stays in the range bag.