# Kaliper vs Keys App

The clearest difference is in-app purchases: Keys App at none against Kaliper's 1. Keys App also leads on ads (none vs shown) and review sentiment (80% vs 50%). Kaliper's advantage is rating (4.6 vs 4.3). On price, ratings volume, device support and iOS requirement there is nothing between them.

Both are free to download. Kaliper sells 1 one-off in-app purchase. Keys App asks for nothing beyond the download.

Kaliper holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 8 and 13 respectively. Written reviews complicate that: 50% of Kaliper's written reviews are positive against 80% of Keys App's, so the app with the better star average is not the one people write more warmly about.

Kaliper ships an update every 8 months, Keys App fortnightly. The most recent releases landed on August 25, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Kaliper | Keys App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (8 ratings)](https://appshunter.io/ios/app/kaliper/id1469528726/reviews)** | [4.3 (13 ratings)](https://appshunter.io/ios/app/keys-app/id1564293496/reviews) |
| Number of ratings | 8 | **13** |
| Positive reviews | 50.0% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 4 MB | 52 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Farren Domenici](https://appshunter.io/developer/583666476) | [Keys LLC](https://appshunter.io/developer/1564293498) |

## What reviewers say

### Kaliper

[App page](https://appshunter.io/ios/app/kaliper/id1469528726)

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.

**Highlights:** Measure key cuts with device camera, Predefined lock systems, Custom key measurement input, Ad-free upgrade option, Supports various lock brands

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kaliper Full Version | $1.99 | one-time |


### Keys App

[App page](https://appshunter.io/ios/app/keys-app/id1564293496)

Connects users with on-demand locksmiths, key programmers, and roadside assistance specialists. Find, track, chat with, and negotiate prices with local service providers directly through the app.

**Highlights:** On-demand locksmith services, Key programming and duplication, Emergency roadside assistance, Service provider navigation, In-app chat and negotiation, Real-time tracking of specialists

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Kaliper free?

Kaliper is free to download, with in-app purchases available.

### Is Keys App free?

Keys App is free to download, with no in-app purchases.

### Which has better reviews, Kaliper or Keys App?

Kaliper is rated higher. Kaliper averages 4.6 out of 5 from 8 ratings, while Keys App averages 4.3 from 13 ratings.

### Do Kaliper or Keys App have ads?

Kaliper shows ads; Keys App does not.

### Which is updated more often, Kaliper or Keys App?

Kaliper ships an update every 8 months, and Keys App fortnightly. Most recently, Kaliper was updated on August 25, 2026 and Keys App on September 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*