Caliber Pro
Score your targets and measure your groups
- for holes, then fine-tune
- Scan
- and group size
- MOA
- for every target
- Score
- targets over time
- Compare
Scan, fine-tune, measure
Snap your target and tap Scan for holes. Caliber marks what it finds; you add, move or remove marks so the result is right. Tell it the distance and target size, and it measures your group in inches and MOA.
No paper target template? Use free measure on any target.
- Scan for holes, then fine-tune the marks
- Group size in inches and MOA
- A score for each target
- Straighten a photo taken at an angle
See what changed
Put two targets side by side to compare group size, MOA and score, and see what changed between sessions. With Insights, track your trends and personal records over time.
- Side-by-side target comparison
- Trends and personal records in Insights
Frequently asked questions
Is target scoring free?
Target scoring is part of Caliber Pro: $4.99/month, $29.99/year with a 14-day free trial, or $99.99 once for lifetime access. The range log itself is free.
Does it find every hole automatically?
It scans for holes and marks what it finds, then you fine-tune: add any it missed, move or remove marks. Overlapping holes and busy targets need a quick check.
What do I need to measure MOA?
The distance you shot from and the target's size (or a known template), so Caliber can turn the photo into real inches.
Get Caliber free on iPhone
Safety lessons, ranges, hunting land and shooting tools, free. No ads, no tracking, and no account needed for the core app.
Free download · Optional Caliber Pro upgrade · iPhone and iPad
More in Caliber
Caliber Pro
Target scoring, Insights, a shot timer, unlimited firearms and more.
Learn more →
Range log
Log every range trip: firearms, rounds, distance and ammo cost, on a calendar.
Learn more →
Shot timer Pro
Time your draw, splits and drills with your iPhone's microphone.
Learn more →
Ballistic calculator & shooting tools
Free bullet drop calculator, DOPE book, scope clicks, distance estimating and more.
Learn more →
Collection & ammo tracker
Your firearms, ammo and gear, with cleaning reminders based on how much you shoot.
Learn more →
Shooting range finder
5,600+ shooting ranges nationwide, on a list or a map, with filters.
Learn more →
CaliberBecome a safer, more skilled firearm owner. Free on iPhone and iPad.
Download on the App StoreFeatures
Guides & directories
- The four firearm safety rules
- California FSC practice test
- Texas LTC practice test
- Hunter education practice test
- Shooting range directory
- Public hunting land in Colorado
- Public hunting land in Florida
- Public hunting land in Georgia
- Public hunting land in Michigan
- Public hunting land in Minnesota
- Public hunting land in Pennsylvania
- Public hunting land in Texas
- Public hunting land in Wisconsin
Caliber is an educational and tracking tool for lawful, responsible ownership. It is not legal advice and not a substitute for in-person instruction. Caliber doesn't sell firearms, ammunition or accessories. Always follow the four safety rules and your local laws. Caliber is made by Norbrook Media LLC. Apple, the Apple logo, iPhone and iPad are trademarks of Apple Inc. App Store is a service mark of Apple Inc.