# ChalkTimer vs Stoi Replay

The clearest difference is iOS requirement: Stoi Replay at 15.1 against ChalkTimer's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ChalkTimer ships an update every 6 days, Stoi Replay every 4 days. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | ChalkTimer | Stoi Replay |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chalktimer/id6757995382/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 4 days** |
| Monetization | Free | — |
| Size | 17 MB | 35 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kristo Designs LLC (US)](https://appshunter.io/developer/480588450) | [Owen Magraken](https://appshunter.io/developer/6783068404) |

## What reviewers say

### ChalkTimer

[App page](https://appshunter.io/ios/app/chalktimer/id6757995382)

This app provides precise timing for gymnastics warm-ups and competitions, adhering to USAG rules. It automates calculations and countdowns, offering visual and audio cues for seamless transitions. Designed for coaches and meet directors, it aims to reduce stress and improve efficiency.

**Highlights:** USAG Rules Based Timing, Automatic Warm-up Calculation, Competition Event Timers, Fall & Bump/Touch Timers, General Stopwatch Functionality, Visual and Audio Cues, Offline Reliability (PRO)

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

**In-app purchases:** none


### Stoi Replay

[App page](https://appshunter.io/ios/app/stoi-replay/id6783068402)

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

**In-app purchases:** none


## Frequently asked questions

### Is ChalkTimer free?

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

### Is Stoi Replay free?

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

### Do ChalkTimer or Stoi Replay have ads?

Neither ChalkTimer nor Stoi Replay shows ads.

### Which is updated more often, ChalkTimer or Stoi Replay?

ChalkTimer ships an update every 6 days, and Stoi Replay every 4 days. Most recently, ChalkTimer was updated on October 31, 2026 and Stoi Replay on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*