# Alarm Stacks vs HabiTamer

The clearest difference is update cadence: Alarm Stacks at weekly against HabiTamer's every 2 weeks. HabiTamer's advantage is iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Alarm Stacks sells 3 in-app purchases, starting at $0.99 per month and HabiTamer sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Alarm Stacks ships an update weekly, HabiTamer every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Alarm Stacks | HabiTamer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 9 MB | 69 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Conor Nolan](https://appshunter.io/developer/1798627652) | [Suneth Thotagamuwa](https://appshunter.io/developer/1841015299) |

## What reviewers say

### Alarm Stacks

[App page](https://appshunter.io/ios/app/alarm-stacks/id6751204732)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Alarm Stacks Plus (Monthly) | $0.99 | per month |
| Alarm Stacks Plus (Yearly) | $2.99 | per year |
| Alarm Stacks Plus (Lifetime) | $5.99 | one-time |


### HabiTamer

[App page](https://appshunter.io/ios/app/habitamer-adhd-focus-timer/id6757280241)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HabiTamer Premium Monthly | $3.99 | per month |
| HabiTamer Premium Yearly | $34.99 | per year |
| HabiTamer Lifetime Premium | $79.99 | one-time |


## Frequently asked questions

### Is Alarm Stacks free?

Alarm Stacks is free to download, with in-app purchases available.

### Is HabiTamer free?

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

### Do Alarm Stacks or HabiTamer have ads?

Neither Alarm Stacks nor HabiTamer shows ads.

### Which is updated more often, Alarm Stacks or HabiTamer?

Alarm Stacks ships an update weekly, and HabiTamer every 2 weeks. Most recently, Alarm Stacks was updated on October 30, 2026 and HabiTamer on October 31, 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.*