# Tracker vs Ruler & Digital Caliper

The clearest difference is in-app purchases: Tracker at none against Ruler & Digital Caliper's 1. Tracker also leads on device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Ruler & Digital Caliper sells 1 one-off in-app purchase. Tracker asks for nothing beyond the download.

## The numbers

| Metric | Tracker | Ruler & Digital Caliper |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Size | 245 MB | 5 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [aguinaldo sousa de moraes](https://appshunter.io/developer/1691235325) | [Yurii Koshkin](https://appshunter.io/developer/1873601061) |

## What reviewers say

### Tracker

[App page](https://appshunter.io/ios/app/tracker-acre/id6751250747)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ruler & Digital Caliper

[App page](https://appshunter.io/ios/app/ruler-and-digital-caliper/id6806950163)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $9.99 | one-time |


## Frequently asked questions

### Is Tracker free?

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

### Is Ruler & Digital Caliper free?

Ruler & Digital Caliper is free to download, with in-app purchases available.

### Do Tracker or Ruler & Digital Caliper have ads?

Neither Tracker nor Ruler & Digital Caliper shows ads.

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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.*