# RC Pit Calc Pro vs Trinity MX Link

The clearest difference is in-app purchases: Trinity MX Link at none against RC Pit Calc Pro's 3. Trinity MX Link also leads on iOS requirement (12.4 vs 15.0). RC Pit Calc Pro's advantage is update cadence (every 5 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. RC Pit Calc Pro sells 3 one-off in-app purchases. Trinity MX Link asks for nothing beyond the download.

RC Pit Calc Pro ships an update every 5 days, Trinity MX Link every 2 months. The most recent releases landed on October 5, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | RC Pit Calc Pro | Trinity MX Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (24 ratings)](https://appshunter.io/ios/app/rc-pit-calc-pro/id1562268871/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 59 MB | 5 MB |
| Requires iOS | 15.0 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Degree3, Inc.](https://appshunter.io/developer/1497876563) | [鹏 杜](https://appshunter.io/developer/1623719348) |

## What reviewers say

### RC Pit Calc Pro

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

This app offers a suite of specialized calculators for RC car enthusiasts. It helps with gear ratios, suspension geometry, corner weights, oil viscosity, fuel usage, and top speed estimations. It also stores data for multiple cars and includes helpful guides.

**Highlights:** Gear ratio calculation, Suspension geometry analysis, Corner weight balancing, Shock oil viscosity adjustment, Fuel usage and pit stop planning, Top speed estimation, Oil blending for custom viscosity

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime backer | $2.00 | one-time |
| Lifetime Backer | $4.00 | one-time |
| Lifetime Backer | $4.99 | one-time |


### Trinity MX Link

[App page](https://appshunter.io/ios/app/trinity-mx-link/id6460006523)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RC Pit Calc Pro free?

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

### Is Trinity MX Link free?

Trinity MX Link is free to download, with no in-app purchases.

### Do RC Pit Calc Pro or Trinity MX Link have ads?

Neither RC Pit Calc Pro nor Trinity MX Link shows ads.

### Which is updated more often, RC Pit Calc Pro or Trinity MX Link?

RC Pit Calc Pro ships an update every 5 days, and Trinity MX Link every 2 months. Most recently, RC Pit Calc Pro was updated on October 5, 2026 and Trinity MX Link on September 14, 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.*