# Timer for HIIT training vs AC Trainer

The clearest difference is ads: AC Trainer at none against Timer for HIIT training's shown. AC Trainer also leads on update cadence (every 3 months vs every 37 months) and iOS requirement (12.0 vs 14.0). On price, 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.

Timer for HIIT training ships an update every 37 months, AC Trainer every 3 months. The most recent releases landed on September 28, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Timer for HIIT training | AC Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (10 ratings)](https://appshunter.io/ios/app/timer-for-hiit-training/id1352280983/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 37 months | **Every 3 months** |
| Monetization | Ad-supported | — |
| Size | 5 MB | 53 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Sergio Musoles Tornador](https://appshunter.io/developer/1235548127) | [REVOO Lab](https://appshunter.io/developer/1480417125) |

## What reviewers say

### Timer for HIIT training

[App page](https://appshunter.io/ios/app/timer-for-hiit-training/id1352280983)

This interval training app helps you manage your workouts for various activities like cycling, running, weightlifting, and HIIT. It offers customizable timers for sets, repetitions, and pauses, with visual cues to guide your sessions.

**Highlights:** Customizable time settings, Customizable number of series, Customizable number of repetitions, Pause and resume sessions, Visual cue screen color changes

**Features:** macOS Compatibility

**In-app purchases:** none


### AC Trainer

[App page](https://appshunter.io/ios/app/ac-trainer/id1610312255)

**In-app purchases:** none


## Frequently asked questions

### Is Timer for HIIT training free?

Timer for HIIT training is free to download, with no in-app purchases.

### Is AC Trainer free?

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

### Do Timer for HIIT training or AC Trainer have ads?

Timer for HIIT training shows ads; AC Trainer does not.

### Which is updated more often, Timer for HIIT training or AC Trainer?

Timer for HIIT training ships an update every 37 months, and AC Trainer every 3 months. Most recently, Timer for HIIT training was updated on September 28, 2026 and AC Trainer on September 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*