Caliber Pro
A shot timer that's already in your pocket

- detects your shots
- Mic
- first shot and between shots
- Splits
- times and random start
- Par
- built in
- Drills
Start beep, shots, splits
Press Start, wait for the beep after a random delay, and shoot. Caliber listens for each shot and shows your first-shot time, splits and total. Adjust sensitivity for indoor bays or outdoor ranges.
- Random start delay
- First-shot time, splits and total
- Adjustable sensitivity

Drills, par times and dry fire
Run built-in drills like the Bill Drill, controlled pairs and 1-reload-1, or set your own par time. Practicing at home with dry fire? Dry-fire mode listens for the click instead. Recent runs are saved so you can see your progress.
- Built-in drills
- Par time beep
- Dry-fire mode
- Recent runs saved
Frequently asked questions
Is the shot timer free?
It's part of Caliber Pro: $4.99/month, $29.99/year with a 14-day free trial, or $99.99 once for lifetime access. Caliber's other shooting tools are free.
Does it work at an indoor range?
Yes, but loud bays with other shooters can trigger false shots. Use the sensitivity setting, and keep the phone close to you.
Is dry-fire practice safe?
Only with an unloaded firearm, checked twice, with no ammunition in the room, pointed in a safe direction. Follow the four safety rules every time.
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 →
Target scoring Pro
Scan a paper target, fine-tune the holes, and get group size, MOA and a score.
Learn more →
Range log
Log every range trip: firearms, rounds, distance and ammo cost, on a calendar.
Learn more →
Ballistic calculator & shooting tools
Free bullet drop calculator, DOPE book, scope clicks, distance estimating and more.
Learn more →
Firearm safety course
177 bite-size lessons with quizzes, from the four safety rules to safe storage.
Learn more →
In-person firearm lessons
Find independent instructors and request a private lesson or a class seat.
Learn more →
Become 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.