# Race Trajectory vs Track Performance Calculator

The clearest difference is in-app purchases: Track Performance Calculator at none against Race Trajectory's 1. Track Performance Calculator also leads on ads (none vs shown) and device support (3 vs 1). On price and update cadence there is nothing between them.

Both are free to download. Race Trajectory sells 1 in-app purchase, starting at $1.99 per month. Track Performance Calculator asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 17, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Race Trajectory | Track Performance Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | Monthly |
| Size | 20 MB | 184 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Tsuyoshi Matsuoka](https://appshunter.io/developer/1697141668) | [Keith Fingers](https://appshunter.io/developer/1545827500) |

## What reviewers say

### Race Trajectory

[App page](https://appshunter.io/ios/app/race-trajectory/id6747305681)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $1.99 | per month |


### Track Performance Calculator

[App page](https://appshunter.io/ios/app/track-performance-calculator/id6763728709)

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

**In-app purchases:** none


## Frequently asked questions

### Is Race Trajectory free?

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

### Is Track Performance Calculator free?

Track Performance Calculator is free to download, with no in-app purchases.

### Do Race Trajectory or Track Performance Calculator have ads?

Race Trajectory shows ads; Track Performance Calculator does not.

### Which is updated more often, Race Trajectory or Track Performance Calculator?

Race Trajectory ships an update monthly, and Track Performance Calculator monthly. Most recently, Race Trajectory was updated on September 17, 2026 and Track Performance Calculator on September 15, 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.*