# Vernier Caliper Micrometer vs Kaliper

The clearest difference is rating: Kaliper at 4.6 against Vernier Caliper Micrometer's 4.1. Kaliper also leads on update cadence (every 8 months vs every 20 months). Vernier Caliper Micrometer's advantage is ads (none vs shown) and iOS requirement (9.0 vs 14.0). On price, review sentiment, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Vernier Caliper Micrometer sells 1 one-off in-app purchase and Kaliper sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Kaliper holds the better App Store score, 4.6 against 4.1. Both are backed by a comparable volume of ratings — 22 and 8 respectively. Written reviews split almost evenly too, at 50% and 50% positive.

Vernier Caliper Micrometer ships an update every 20 months, Kaliper every 8 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Vernier Caliper Micrometer | Kaliper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (22 ratings)](https://appshunter.io/ios/app/vernier-caliper-micrometer/id1242638955/reviews) | **[4.6 (8 ratings)](https://appshunter.io/ios/app/kaliper/id1469528726/reviews)** |
| Number of ratings | **22** | 8 |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 20 months | **Every 8 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 24 MB | 4 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [齐 陈](https://appshunter.io/developer/455625305) | [Farren Domenici](https://appshunter.io/developer/583666476) |

## What reviewers say

### Vernier Caliper Micrometer

[App page](https://appshunter.io/ios/app/vernier-caliper-micrometer/id1242638955)

This utility app transforms your iPhone or iPad into a precise measuring tool for short lengths. It supports both inch and centimeter units, features calibration, and offers a user-friendly interface.

**Highlights:** Measures short lengths, Supports inches and centimeters, Unit switching, Calibration feature, Easy to use interface, Attractive UI

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### 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 |


## Frequently asked questions

### Is Vernier Caliper Micrometer free?

Vernier Caliper Micrometer is free to download, with in-app purchases available.

### Is Kaliper free?

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

### Which has better reviews, Vernier Caliper Micrometer or Kaliper?

Kaliper is rated higher. Vernier Caliper Micrometer averages 4.1 out of 5 from 22 ratings, while Kaliper averages 4.6 from 8 ratings.

### Do Vernier Caliper Micrometer or Kaliper have ads?

Kaliper shows ads; Vernier Caliper Micrometer does not.

### Which is updated more often, Vernier Caliper Micrometer or Kaliper?

Vernier Caliper Micrometer ships an update every 20 months, and Kaliper every 8 months. Most recently, Vernier Caliper Micrometer was updated on November 2, 2026 and Kaliper on November 3, 2026.

---

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