# Interval Timer HIIT Timer ++ vs Work Harder

The clearest difference is ads: Work Harder at none against Interval Timer HIIT Timer ++'s shown. On price, update cadence, in-app purchases and device support 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 and Work Harder sells 5 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Interval Timer HIIT Timer ++ ships an update fortnightly, Work Harder every 2 weeks. The most recent releases landed on October 30, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Interval Timer HIIT Timer ++ | Work Harder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Size | 7 MB | 12 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Appwallet Technologies Private Limited](https://appshunter.io/developer/1581780855) | [Sergey Germanov](https://appshunter.io/developer/1750609197) |

## What reviewers say

### Interval Timer HIIT Timer ++

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

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

**In-app purchases (1)**

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


### Work Harder

[App page](https://appshunter.io/ios/app/work-harder-gym-tracker/id6748526748)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Access | $0.99 | per month |
| Coffee for the Developer | $1.99 | one-time |
| 2 Coffees for the Developer | $2.99 | one-time |
| Pro Lifetime Access | $2.99 | one-time |
| 3 Coffees for the Developer | $4.99 | one-time |


## Frequently asked questions

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

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

### Is Work Harder free?

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

### Do Interval Timer HIIT Timer ++ or Work Harder have ads?

Interval Timer HIIT Timer ++ shows ads; Work Harder does not.

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

Interval Timer HIIT Timer ++ ships an update fortnightly, and Work Harder every 2 weeks. Most recently, Interval Timer HIIT Timer ++ was updated on October 30, 2026 and Work Harder on November 8, 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.*