# Rastrac Driver vs Twinin

The clearest difference is in-app purchases: Rastrac Driver at none against Twinin's 1. Rastrac Driver also leads on ads (none vs shown) and iOS requirement (9.3 vs 17). Twinin's advantage is update cadence (fortnightly vs every 46 months). On price and device support there is nothing between them.

Both are free to download. Twinin sells 1 one-off in-app purchase. Rastrac Driver asks for nothing beyond the download.

Rastrac Driver ships an update every 46 months, Twinin fortnightly. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Rastrac Driver | Twinin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 46 months | **Fortnightly** |
| Size | 9 MB | 9 MB |
| Requires iOS | **9.3** | 17 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 17+ |
| Developer | [RASTRAC](https://appshunter.io/developer/805658272) | [YUUSUKE HARASAWA](https://appshunter.io/developer/664328221) |

## What reviewers say

### Rastrac Driver

[App page](https://appshunter.io/ios/app/rastrac-driver/id1473653597)

**Features:** macOS Compatibility

**In-app purchases:** none


### Twinin

[App page](https://appshunter.io/ios/app/twinin/id6746599165)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Twinin pro | $1.99 | one-time |


## Frequently asked questions

### Is Rastrac Driver free?

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

### Is Twinin free?

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

### Do Rastrac Driver or Twinin have ads?

Twinin shows ads; Rastrac Driver does not.

### Which is updated more often, Rastrac Driver or Twinin?

Rastrac Driver ships an update every 46 months, and Twinin fortnightly. Most recently, Rastrac Driver was updated on October 26, 2026 and Twinin on October 30, 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.*