# 00 vs Swimming Timer

The clearest difference is in-app purchases: 00 at none against Swimming Timer's 2. 00 also leads on ads (none vs shown) and iOS requirement (10.0 vs 13.0). On price, review sentiment, update cadence and device support there is nothing between them.

Both are free to download. Swimming Timer sells 2 one-off in-app purchases. 00 asks for nothing beyond the download.

00 ships an update every 2 months, Swimming Timer every 3 months. The most recent releases landed on September 30, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | 00 | Swimming Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/swimming-timer/id1627209712/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 42 MB | 34 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Adriaan de Jongh](https://appshunter.io/developer/965628077) | [NAOYA ONO](https://appshunter.io/developer/1530328146) |

## What reviewers say

### 00

[App page](https://appshunter.io/ios/app/0036/id1484981309)

This app serves as a companion for your movement practice, offering tools like timers, breaks, and a metronome. It also provides advanced partner instructions to guide your sessions.

**Highlights:** Timers and breaks, Advanced partner instructions, Metronome, Movement practice companion

**In-app purchases:** none


### Swimming Timer

[App page](https://appshunter.io/ios/app/swimming-timer/id1627209712)

This app helps swimmers practice race starts with customizable timers and randomized delays. It also functions as a stopwatch to accurately measure lap and split times during training. Results can be saved and organized by date, with customizable event names and color themes.

**Highlights:** Customizable race start timer, Randomized start delays, Lap and split time measurement, Save and view results by date, Editable event names, Customizable color themes

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support Developer | $0.99 | one-time |
| Remove ads | $6.99 | one-time |


## Frequently asked questions

### Is 00 free?

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

### Is Swimming Timer free?

Swimming Timer is free to download, with in-app purchases available.

### Do 00 or Swimming Timer have ads?

Swimming Timer shows ads; 00 does not.

### Which is updated more often, 00 or Swimming Timer?

00 ships an update every 2 months, and Swimming Timer every 3 months. Most recently, 00 was updated on September 30, 2026 and Swimming Timer on October 11, 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.*