# Ratio Calc! vs AliveDrive Race

The clearest difference is review sentiment: Ratio Calc! at 88% against AliveDrive Race's 50%. Ratio Calc! also leads on ads (none vs shown) and rating (4.5 vs 4.2). AliveDrive Race's advantage is in-app purchases (none vs 4) and update cadence (monthly vs every 4 months). On price and device support there is nothing between them.

Both are free to download. Ratio Calc! sells 4 one-off in-app purchases. AliveDrive Race asks for nothing beyond the download.

Ratio Calc! holds the better App Store score, 4.5 against 4.2. That said, the two scores are not equally well evidenced: Ratio Calc! has 26 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 88% of Ratio Calc!'s written reviews are positive against 50% of AliveDrive Race's.

Ratio Calc! ships an update every 4 months, AliveDrive Race monthly. Both last shipped on October 29, 2026.

## The numbers

| Metric | Ratio Calc! | AliveDrive Race |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (26 ratings)](https://appshunter.io/ios/app/ratio-calc/id436311293/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/alivedrive-race/id1492053156/reviews) |
| Number of ratings | **26** | 5 |
| Positive reviews | **87.5% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 69 MB | 264 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [David Mills](https://appshunter.io/developer/395985551) | [Cosworth Electronics Limited](https://appshunter.io/developer/596796181) |

## What reviewers say

### Ratio Calc!

[App page](https://appshunter.io/ios/app/ratio-calc/id436311293)

This app helps radio control car racers calculate their final drive ratio and rollout. Easily select your car, input gear sizes, and get instant results. It also offers charts and saves favorite cars for quick access.

**Highlights:** Calculate Final Drive Ratio (FDR), Calculate Rollout with tire diameter, Filter cars by manufacturer and model, Save favorite cars, Select measurement units (imperial/metric), Select gear pitch, View ratio and rollout charts

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nice Tip | $0.99 | one-time |
| Generous Tip | $2.99 | one-time |
| Mega Tip | $4.99 | one-time |
| Insane Tip | $9.99 | one-time |

**What reviewers like**

- 👍 Excellent for RC gear ratios
- 👍 Great database of cars
- 👍 Simple and easy to use
- 👍 Invaluable at the track
- 👍 Time saver

**What reviewers complain about**

- 🐛 Latest version unusable
- 🐛 Cannot adjust tyre sizes
- 🐛 Cannot adjust gear ratio
- 🐛 Removed notes feature
- 🐛 Removed ability to save same vehicle twice

**Reported bugs**

- Cannot adjust tyre sizes in latest version
- Cannot adjust gear ratio in latest version
- Bug on iPad: 'done' button missing after setting pinion/spur
- Removed notes feature in latest update
- Removed ability to save same vehicle twice in latest update

**Requested features**

- Add Mod 1 pinions and spurs
- Add support for 1:8 e-buggies
- Reintroduce notes feature
- Reintroduce ability to save same vehicle twice
- Add iCloud backup or import/export feature


### AliveDrive Race

[App page](https://appshunter.io/ios/app/alivedrive-race/id1492053156)

Analyze your driving performance with recorded data. Import and sync recordings, compare laps with detailed statistics, and review your drives with side-by-side video playback and GPS mapping. Improve your racing line and take your driving skills to the next level.

**Highlights:** Import and sync PDR recordings, Analyze lap performance, Compare laps with statistics, Side-by-side video playback, 10Hz GPS data on aerial maps, Cloud sync for data and video

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ratio Calc! free?

Ratio Calc! is free to download, with in-app purchases available.

### Is AliveDrive Race free?

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

### Which has better reviews, Ratio Calc! or AliveDrive Race?

Ratio Calc! is rated higher. Ratio Calc! averages 4.5 out of 5 from 26 ratings, while AliveDrive Race averages 4.2 from 5 ratings.

### Do Ratio Calc! or AliveDrive Race have ads?

AliveDrive Race shows ads; Ratio Calc! does not.

### Which is updated more often, Ratio Calc! or AliveDrive Race?

Ratio Calc! ships an update every 4 months, and AliveDrive Race monthly. Most recently, Ratio Calc! was updated on October 29, 2026 and AliveDrive Race on October 29, 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.*