# Stillness Timer vs Core1

The clearest difference is update cadence: Core1 at every 3 days against Stillness Timer's every 2 months. Core1 also leads on iOS requirement (15.1 vs 18.0). 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.

Stillness Timer ships an update every 2 months, Core1 every 3 days. The most recent releases landed on October 10, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Stillness Timer | Core1 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 19 MB | 22 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Alexey Prudkov](https://appshunter.io/developer/1804149888) | [Heather Kim](https://appshunter.io/developer/1877817879) |

## What reviewers say

### Stillness Timer

[App page](https://appshunter.io/ios/app/stillness-timer/id6743715831)

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

**In-app purchases:** none


### Core1

[App page](https://appshunter.io/ios/app/core1/id6759274693)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stillness Timer free?

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

### Is Core1 free?

Core1 is free to download, with no in-app purchases.

### Do Stillness Timer or Core1 have ads?

Neither Stillness Timer nor Core1 shows ads.

### Which is updated more often, Stillness Timer or Core1?

Stillness Timer ships an update every 2 months, and Core1 every 3 days. Most recently, Stillness Timer was updated on October 10, 2026 and Core1 on September 29, 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.*