# sTimers vs BookWeeks

The clearest difference is update cadence: BookWeeks at every 5 days against sTimers's every 23 months. On price, ads, in-app purchases and device support there is nothing between them.

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

sTimers ships an update every 23 months, BookWeeks every 5 days. Both last shipped on October 7, 2026.

## The numbers

| Metric | sTimers | BookWeeks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/stimers/id1009752622/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 88.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 34 MB | 25 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [s-joys Co., Ltd.](https://appshunter.io/developer/1252722512) | [OI FUNG HO](https://appshunter.io/developer/1861706104) |

## What reviewers say

### sTimers

[App page](https://appshunter.io/ios/app/stimers/id1009752622)

This utility allows you to run multiple countdown timers simultaneously. Save your favorite presets and pause or resume them as needed. Receive notifications even when the app is running in the background.

**Highlights:** Simultaneous timer execution, Save multiple timer presets, Pause and resume functionality, Background notifications, Ad-free experience

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

**In-app purchases:** none


### BookWeeks

[App page](https://appshunter.io/ios/app/bookweeks/id6757269339)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is sTimers free?

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

### Is BookWeeks free?

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

### Do sTimers or BookWeeks have ads?

Neither sTimers nor BookWeeks shows ads.

### Which is updated more often, sTimers or BookWeeks?

sTimers ships an update every 23 months, and BookWeeks every 5 days. Most recently, sTimers was updated on October 7, 2026 and BookWeeks on October 7, 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.*