# Race Trajectory vs Sprint Start Recorder

The clearest difference is in-app purchases: Sprint Start Recorder at none against Race Trajectory's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Race Trajectory sells 3 in-app purchases, starting at $0.99 per month. Sprint Start Recorder asks for nothing beyond the download.

Race Trajectory ships an update every 3 weeks, Sprint Start Recorder every 2 weeks. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Race Trajectory | Sprint Start Recorder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sprint-start-recorder/id6748664830/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | — | Ad-supported |
| Size | 21 MB | 32 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tsuyoshi Matsuoka](https://appshunter.io/developer/1697141668) | [Yuto Nagayama](https://appshunter.io/developer/1733179118) |

## What reviewers say

### Race Trajectory

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

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $0.99 | per month |
| Premium (Lifetime) | $2.99 | one-time |
| Premium (Lifetime) | $3.99 | one-time |


### Sprint Start Recorder

[App page](https://appshunter.io/ios/app/sprint-start-recorder/id6748664830)

This tool helps track sprint start cues, video, and timing for track and field athletes. It simulates realistic race day sequences with adjustable intervals and records clear videos with embedded stopwatch overlays for reaction time analysis.

**Highlights:** Realistic start cues with gunshot sound, Adjustable cue intervals, Auto-zoom video recording, Clear video quality for form review, Embedded stopwatch timer for reaction time, Simulates 'On Your Marks, Set, Bang!'

**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 Sprint Start Recorder free?

Sprint Start Recorder is free to download, with no in-app purchases.

### Do Race Trajectory or Sprint Start Recorder have ads?

Both Race Trajectory and Sprint Start Recorder show ads.

### Which is updated more often, Race Trajectory or Sprint Start Recorder?

Race Trajectory ships an update every 3 weeks, and Sprint Start Recorder every 2 weeks. Most recently, Race Trajectory was updated on November 5, 2026 and Sprint Start Recorder 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.*