# Kaliper vs SmartKey Box

The clearest difference is in-app purchases: SmartKey Box at none against Kaliper's 1. SmartKey Box also leads on ads (none vs shown) and update cadence (fortnightly vs every 8 months). Kaliper's advantage is ratings volume (8 vs 1). On price and device support there is nothing between them.

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

SmartKey Box holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Kaliper has 8 ratings behind it against 1, so its average is the more settled of the two.

Kaliper ships an update every 8 months, SmartKey Box fortnightly. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Kaliper | SmartKey Box |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (8 ratings)](https://appshunter.io/ios/app/kaliper/id1469528726/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/smartkey-box/id1544208283/reviews)** |
| Number of ratings | **8** | 1 |
| Positive reviews | 50.0% 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 | 181 MB |
| Requires iOS | 14.0 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Farren Domenici](https://appshunter.io/developer/583666476) | [Shenzhen XHorse Electronics Co., Ltd.](https://appshunter.io/developer/847134173) |

## 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 |


### SmartKey Box

[App page](https://appshunter.io/ios/app/smartkey-box/id1544208283)

Control your car's locks, trunk, and panic functions directly from your smartphone. This app connects via Bluetooth to a smart key box, offering a convenient and customizable way to manage vehicle access with various gesture controls.

**Highlights:** Bluetooth connectivity to smart key box, Remote lock/unlock vehicle, Trunk open function, Panic alarm activation, Customizable gesture controls (single-click, double-click, press-and-hold), Multiple style options

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kaliper free?

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

### Is SmartKey Box free?

SmartKey Box is free to download, with no in-app purchases.

### Which has better reviews, Kaliper or SmartKey Box?

SmartKey Box is rated higher. Kaliper averages 4.6 out of 5 from 8 ratings, while SmartKey Box averages 5.0 from 1 ratings.

### Do Kaliper or SmartKey Box have ads?

Kaliper shows ads; SmartKey Box does not.

### Which is updated more often, Kaliper or SmartKey Box?

Kaliper ships an update every 8 months, and SmartKey Box fortnightly. Most recently, Kaliper was updated on October 10, 2026 and SmartKey Box on October 3, 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.*