# FastR vs RallyRally

The clearest difference is in-app purchases: RallyRally at none against FastR's 2. RallyRally also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. FastR sells 2 one-off in-app purchases. RallyRally asks for nothing beyond the download.

FastR ships an update every 5 months, RallyRally every 3 months. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | FastR | RallyRally |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (319 ratings)](https://appshunter.io/ios/app/fastr-0-60-acceleration-test/id1296375567/reviews)** | — |
| Number of ratings | **319** | — |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 52 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Erhies Fekarurhobo](https://appshunter.io/developer/1296375566) | [RallyRally Limited](https://appshunter.io/developer/1871085931) |

## What reviewers say

### FastR

[App page](https://appshunter.io/ios/app/fastr-0-60-acceleration-test/id1296375567)

Measure your vehicle's acceleration performance with this app. It automatically tests 0-60 and quarter-mile times with millisecond accuracy. Compete with others on a real-time leaderboard and save results for different car models.

**Highlights:** Hands-free, automated acceleration testing, 0-60 and Quarter mile time measurement, Millisecond accuracy, Real-time user ranking, Save times for different car models

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Leaderboard Posts | $3.99 | one-time |
| Unlock 1/4 Mile Timing | $5.99 | one-time |

**What reviewers like**

- 👍 Easy to use interface and simple design
- 💡 Innovative concept for testing 0-60 times without expensive equipment
- 🏆 Competitive leaderboard feature for sharing times
- 📱 Well-designed app layout
- ✅ Accurate readings for slower vehicles (6+ second 0-60 times)

**What reviewers complain about**

- 🐛 Severe GPS lag and timing delays (1-3+ seconds behind actual speed)
- ❌ Highly inaccurate for high-performance vehicles (sub-5 second 0-60)
- 🔌 Network connection issues preventing app functionality
- 📵 Login and authentication problems (Facebook-only requirement)
- ⚠️ Inconsistent and unreliable acceleration measurements

**Reported bugs**

- Network connection errors preventing vehicle selection
- Facebook login buffering and not connecting
- App fails to record and save acceleration times
- GPS speed readings lag significantly behind actual speed
- App crashes on launch or during use

**Requested features**

- GPS-based auto-start feature instead of manual start button
- Audio cues for 'ready, set, go' countdown
- Alternative login methods beyond Facebook
- Save vehicle selection for future sessions
- Support for multiple vehicles per account


### RallyRally

[App page](https://appshunter.io/ios/app/rallyrally/id6758130721)

**In-app purchases:** none


## Frequently asked questions

### Is FastR free?

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

### Is RallyRally free?

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

### Do FastR or RallyRally have ads?

Neither FastR nor RallyRally shows ads.

### Which is updated more often, FastR or RallyRally?

FastR ships an update every 5 months, and RallyRally every 3 months. Most recently, FastR was updated on November 3, 2026 and RallyRally on October 28, 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.*