# Interval Timer HIIT Timer ++ vs Set

The clearest difference is in-app purchases: Set at none against Interval Timer HIIT Timer ++'s 1. Set also leads on ads (none vs shown) and update cadence (daily vs every 6 days). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Interval Timer HIIT Timer ++ sells 1 in-app purchase, starting at $1.99 per 7 days. Set asks for nothing beyond the download.

Interval Timer HIIT Timer ++ ships an update every 6 days, Set daily. The most recent releases landed on June 11, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Interval Timer HIIT Timer ++ | Set |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 days | **Daily** |
| Size | 6 MB | 1 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Appwallet Technologies Private Limited](https://appshunter.io/developer/1581780855) | [Lari Partanen](https://appshunter.io/developer/1814773106) |

## What reviewers say

### Interval Timer HIIT Timer ++

[App page](https://appshunter.io/ios/app/interval-timer-hiit-timer-plus-plus/id6737910658)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HIIT | $1.99 | per 7 days |


### Set

[App page](https://appshunter.io/ios/app/set-rest-timer/id6746042695)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer HIIT Timer ++ free?

Interval Timer HIIT Timer ++ is free to download, with in-app purchases available.

### Is Set free?

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

### Do Interval Timer HIIT Timer ++ or Set have ads?

Interval Timer HIIT Timer ++ shows ads; Set does not.

### Which is updated more often, Interval Timer HIIT Timer ++ or Set?

Interval Timer HIIT Timer ++ ships an update every 6 days, and Set daily. Most recently, Interval Timer HIIT Timer ++ was updated on June 11, 2026 and Set on September 12, 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.*