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Kaliper

Kaliper

Key Gauge Utility

8 ratings
6 reviews
With Ads
🔧 Utilities
📊 Productivity
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • July 14, 2019
  • March 16, 2026

Features

Developer

Farren Domenici
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Kaliper screenshot #1 for iPhone
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Kaliper screenshot #6 for iPhone
🧾$1.99
In-App Purchase↘︎
⭐6
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📝1+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓8 answered
FAQ↘︎
📦~ in 7 months
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About

Measure key cuts accurately using your device's camera. This utility helps decode keys when a physical caliper is unavailable or difficult to read. Offers predefined systems and custom measurement options for various lock types.

✓Measure key cuts with device camera
✓Predefined lock systems
✓Custom key measurement input
✓Ad-free upgrade option
✓Supports various lock brands
Show original description

What's New in Kaliper

1.4

March 16, 2026

-Major overhaul replacing many of the much older iPhones with the current lineup including the last five or more years

1

In-App Purchases

$1.99

Kaliper Full Version

No Ads, More Systems, Customization, 6 Pin

User reviews

Most RecentHighest RatedLowest Rated

Update

It needs a update so you can scale a key on the screen. A great possible app if it was updated. Would be a five star for sure.
twogun8466twogun8466

iPhone

Wish I was compatible with iphone 11 or12
Fritz BookmanFritz Bookman

Does exactly what I need

Working w/ facility carpenters on cutting new keys after an original code book was destroyed.

With a little figuring and few keys we decoded everything flawlessly.
FattyTfromPSDFattyTfromPSD

Kaliper app

I have downloaded and paid for updates. Nothing has happened
zx549*%zx549*%

Response from developer

I’m sorry you’re having issues! Can you please contact me at phil@locksmithapps.com for support? I am not notified when reviews are left so I have no way of immediately addressing an issue if I don’t receive an email. The problem may be as simple as force closing the app and reopening and if the case please consider changing your rating.

Weiser Keyway

Would gladly buy the premium version if it offered a Weiser, WR5 option. Cool idea but not much use to me. Too bad
murray2164murray2164

Response from developer

Thanks for the feedback and suggestion. I happily welcome suggestions and offer support via email. I will note your wr5 request for a future version, but please know that the weiser specs are available in the custom charts.

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FAQ

Does Kaliper have ads?

Yes, Kaliper contains advertisements. An in-app purchase is available to remove ads and unlock additional features.

What lock systems are included in the free version of Kaliper?

The free version of Kaliper includes two predefined systems: Arrow .014" and Schlage .015" (5 pin only).

How accurate is Kaliper for measuring key cuts?

Accuracy depends on proper alignment and practice. The app provides zoom controls and detailed instructions to help users achieve precise measurements for decoding keys.

What devices is Kaliper compatible with?

Kaliper is compatible with iPhones and iPods, with specific model compatibility listed for various screen sizes including iPhone SE, 12, 13, 14, and 15 series, as well as Pro and Max variants.

Can I add custom key systems to Kaliper?

Yes, Kaliper allows for custom key measurements. You can input distances between cuts, shallowest depth, and depth increments, or select systems from the provided Charts page.

How often is Kaliper updated?

The latest version is 1.4, last updated on March 16, 2026. Update frequency can vary, but the app is actively maintained.

What is the age rating for Kaliper?

Kaliper has an age rating of 4+, making it suitable for a wide range of users.

How do I learn to use Kaliper effectively?

The app has a learning curve, and practice is recommended. Detailed instructions are provided within the app for using both predefined and custom measurement systems.