Armory · Private
Your collection, ammo and gear, kept private

- firearms free; unlimited with Pro
- 3
- inventory with low-stock warnings
- Ammo
- cleaning reminders by round count
- Auto
- never sent to Caliber
- Private
Every firearm, with the details that matter
Add photos, a nickname and details for each firearm. Serial numbers stay private to you. Caliber tracks lifetime rounds and sessions for each one, and a reference catalog gives estimated values.
- Photos, nicknames and details
- Lifetime round count and sessions
- Estimated values from a reference catalog
- Up to 3 firearms free, unlimited with Caliber Pro

Cleaning reminders based on how much you shoot
Cleaning and inspection come due by round count, so a firearm you shoot every weekend gets attention sooner than one in the safe. Log maintenance in a tap. With Caliber Pro, add time-based schedules (say, clean every 90 days, whichever comes first) and lubrication intervals.
- Cleaning and inspection reminders
- Overdue alerts on Home
- Time-based and lubrication schedules with Caliber Pro

Paperwork and insurance, handled
With Caliber Pro, keep permits and certificates with expiry reminders, and create an insurance collection report as a PDF. Anyone can export a full backup of their data and restore it.
- Permit and document tracker with Caliber Pro
- Insurance collection report (PDF) with Caliber Pro
- Export and restore a backup, free

Frequently asked questions
Is my collection data private?
Yes. Your firearms, serial numbers, photos and ammo stay on your iPhone and sync only to your own private iCloud. They never reach Caliber's server. Caliber has no ads and no tracking.
How many firearms can I track for free?
Up to 3. Caliber Pro adds unlimited firearms, along with target scoring, Insights, a shot timer and more.
What happens to my data if I get a new phone?
It syncs through your own iCloud, and you can also export a backup file anytime and restore it.
Does Caliber sell or value firearms for sale?
No. Caliber doesn't sell, buy or transfer anything. Estimated values come from a reference catalog and are only estimates, not appraisals.
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
Range log
Log every range trip: firearms, rounds, distance and ammo cost, on a calendar.
Learn more →
Caliber Pro
Target scoring, Insights, a shot timer, unlimited firearms and more.
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Target scoring Pro
Scan a paper target, fine-tune the holes, and get group size, MOA and a score.
Learn more →
Ballistic calculator & shooting tools
Free bullet drop calculator, DOPE book, scope clicks, distance estimating and more.
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Firearm safety course
177 bite-size lessons with quizzes, from the four safety rules to safe storage.
Learn more →
Shooting range finder
5,600+ shooting ranges nationwide, on a list or a map, with filters.
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.