# AviWatch vs RC Pit Calc Pro

The clearest difference is in-app purchases: AviWatch at none against RC Pit Calc Pro's 2. AviWatch also leads on iOS requirement (11.0 vs 15.0). RC Pit Calc Pro's advantage is update cadence (every 4 days vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. RC Pit Calc Pro sells 1 one-off in-app purchase. AviWatch asks for nothing beyond the download.

AviWatch ships an update every 6 weeks, RC Pit Calc Pro every 4 days. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | AviWatch | RC Pit Calc Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (25 ratings)](https://appshunter.io/ios/app/rc-pit-calc-pro/id1562268871/reviews)** |
| Number of ratings | — | **25** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Monetization | — | Free |
| Size | 14 MB | 59 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oscar Raya](https://appshunter.io/developer/522081742) | [Degree3, Inc.](https://appshunter.io/developer/1497876563) |

## What reviewers say

### AviWatch

[App page](https://appshunter.io/ios/app/aviwatch/id1187881133)

**Features:** macOS Compatibility

**In-app purchases:** none


### RC Pit Calc Pro

[App page](https://appshunter.io/ios/app/rc-pit-calc-pro/id1562268871)

This app provides a comprehensive suite of calculators for RC car enthusiasts, covering gear ratios, suspension geometry, shock tuning, and more. It helps racers and bashers optimize their vehicle's performance with precise calculations and real-world data.

**Highlights:** Gear ratio and FDR calculation, Pinion and top speed recommendation, Suspension geometry calculator, Shock oil temperature and blending, Fuel usage calculator, Corner weight analysis

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Backer | $4.99 | one-time |


## Frequently asked questions

### Is AviWatch free?

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

### Is RC Pit Calc Pro free?

RC Pit Calc Pro is free to download, with in-app purchases available.

### Do AviWatch or RC Pit Calc Pro have ads?

Neither AviWatch nor RC Pit Calc Pro shows ads.

### Which is updated more often, AviWatch or RC Pit Calc Pro?

AviWatch ships an update every 6 weeks, and RC Pit Calc Pro every 4 days. Most recently, AviWatch was updated on October 26, 2026 and RC Pit Calc Pro 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.*