# SimpleFastingTimer(OneClick) vs SirenCare

The clearest difference is update cadence: SirenCare at every 2 months against SimpleFastingTimer(OneClick)'s every 20 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.

SimpleFastingTimer(OneClick) ships an update every 20 months, SirenCare every 2 months. The most recent releases landed on August 16, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | SimpleFastingTimer(OneClick) | SirenCare |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 32 MB | 31 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Goodcode](https://appshunter.io/developer/1588021729) | [BigHaveSolution, Inc](https://appshunter.io/developer/1763556157) |

## What reviewers say

### SimpleFastingTimer(OneClick)

[App page](https://appshunter.io/ios/app/simplefastingtimeroneclick/id6448982348)

This app offers a straightforward approach to intermittent fasting, allowing users to easily track their fasting periods with a single tap. It provides a clear interface to monitor progress and manage eating windows.

**Highlights:** One-click fasting start/stop, Fasting period tracking, Eating window monitoring, Simple progress visualization

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

**In-app purchases:** none


### SirenCare

[App page](https://appshunter.io/ios/app/sirencare/id6642689003)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SimpleFastingTimer(OneClick) free?

SimpleFastingTimer(OneClick) is free to download, with no in-app purchases.

### Is SirenCare free?

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

### Do SimpleFastingTimer(OneClick) or SirenCare have ads?

Neither SimpleFastingTimer(OneClick) nor SirenCare shows ads.

### Which is updated more often, SimpleFastingTimer(OneClick) or SirenCare?

SimpleFastingTimer(OneClick) ships an update every 20 months, and SirenCare every 2 months. Most recently, SimpleFastingTimer(OneClick) was updated on August 16, 2026 and SirenCare on September 14, 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.*