# HIIT Interval Timer vs Traily

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

Both are free to download. HIIT Interval Timer sells 1 one-off in-app purchase. Traily asks for nothing beyond the download.

HIIT Interval Timer ships an update fortnightly, Traily every 6 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | HIIT Interval Timer | Traily |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 98 MB | 61 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [tsyk-app](https://appshunter.io/developer/1586870924) | [takumi otani](https://appshunter.io/developer/1801614605) |

## What reviewers say

### HIIT Interval Timer

[App page](https://appshunter.io/ios/app/hiit-interval-timer-tabata/id1586870922)

This app provides customizable interval timers for various workout styles like HIIT, Tabata, EMOM, and AMRAP. Track your progress, set weekly goals, and enjoy estimated calorie burn with shareable workout summaries. It offers a free version with core features and a Pro version for enhanced customization and an ad-free experience.

**Highlights:** Customizable interval timers, Multiple workout modes (HIIT, Tabata, EMOM, AMRAP), Weekly goal tracking, Estimated calorie burn, Workout sharing options, Sound and haptic cues, Customizable themes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HIIT Timer Pro | $4.99 | one-time |


### Traily

[App page](https://appshunter.io/ios/app/traily/id6759229622)

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

**In-app purchases:** none


## Frequently asked questions

### Is HIIT Interval Timer free?

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

### Is Traily free?

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

### Do HIIT Interval Timer or Traily have ads?

HIIT Interval Timer shows ads; Traily does not.

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

HIIT Interval Timer ships an update fortnightly, and Traily every 6 days. Most recently, HIIT Interval Timer was updated on October 30, 2026 and Traily on October 28, 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.*