# SmartHIIT vs Timer AI

The clearest difference is ads: SmartHIIT at none against Timer AI's shown. SmartHIIT also leads on update cadence (every 3 days vs every 6 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. SmartHIIT sells 2 in-app purchases, starting at $4.99 per month and Timer AI sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

SmartHIIT ships an update every 3 days, Timer AI every 6 days. The most recent releases landed on October 2, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | SmartHIIT | Timer AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 6 days |
| Size | 25 MB | 85 MB |
| Requires iOS | 18.5 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Diego Dias de Macedo](https://appshunter.io/developer/1293397655) | [Selim Midikoglu](https://appshunter.io/developer/1506961188) |

## What reviewers say

### SmartHIIT

[App page](https://appshunter.io/ios/app/smarthiit-ai-workout-and-timer/id6754564855)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SmartHIIT Pro Monthly | $4.99 | per month |
| SmartHIIT Pro Annual | $34.99 | per year |


### Timer AI

[App page](https://appshunter.io/ios/app/timer-ai/id6760572490)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Yearly | $29.99 | per year |


## Frequently asked questions

### Is SmartHIIT free?

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

### Is Timer AI free?

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

### Do SmartHIIT or Timer AI have ads?

Timer AI shows ads; SmartHIIT does not.

### Which is updated more often, SmartHIIT or Timer AI?

SmartHIIT ships an update every 3 days, and Timer AI every 6 days. Most recently, SmartHIIT was updated on October 2, 2026 and Timer AI on October 17, 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.*