# WKGSIM vs Swimming Timer

The clearest difference is in-app purchases: WKGSIM at none against Swimming Timer's 2. WKGSIM also leads on ads (none vs shown). Swimming Timer's advantage is update cadence (every 3 months vs every 7 months). On price, device support and iOS requirement there is nothing between them.

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

WKGSIM ships an update every 7 months, Swimming Timer every 3 months. The most recent releases landed on March 26, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | WKGSIM | 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 |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | — | Free with in-app purchases |
| Size | 42 MB | 34 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [MITSUNORI TERAGAMI](https://appshunter.io/developer/883571123) | [NAOYA ONO](https://appshunter.io/developer/1530328146) |

## What reviewers say

### WKGSIM

[App page](https://appshunter.io/ios/app/wkgsim/id1445976080)

**Features:** macOS Compatibility

**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 WKGSIM free?

WKGSIM 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 WKGSIM or Swimming Timer have ads?

Swimming Timer shows ads; WKGSIM does not.

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

WKGSIM ships an update every 7 months, and Swimming Timer every 3 months. Most recently, WKGSIM was updated on March 26, 2026 and Swimming Timer on September 25, 2026.

---

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