# Interval Timer vs HIIT Workout Timer by Zafapp

Interval Timer and HIIT Workout Timer by Zafapp both sit at 4.5 stars, but that hides the real split: 73% of Interval Timer's written reviews are positive against 40% of HIIT Workout Timer by Zafapp's. Interval Timer also leads on ratings volume (19K vs 15) and iOS requirement (13.0 vs 15.0). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Interval Timer sells 6 in-app purchases, starting at $0.99 per month and HIIT Workout Timer by Zafapp sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for Interval Timer against 4.5 for HIIT Workout Timer by Zafapp. That said, the two scores are not equally well evidenced: Interval Timer has 19K ratings behind it against 15, so its average is the more settled of the two. Written reviews are what separate them: 73% of Interval Timer's written reviews are positive against 40% of HIIT Workout Timer by Zafapp's.

Interval Timer ships an update every 9 days, HIIT Workout Timer by Zafapp every 3 weeks. The most recent releases landed on September 29, 2026 and August 23, 2026 respectively.

## The numbers

| Metric | Interval Timer | HIIT Workout Timer by Zafapp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (19K ratings)](https://appshunter.io/ios/app/interval-timer-tabata-timer/id406473568/reviews) | [4.5 (15 ratings)](https://appshunter.io/ios/app/hiit-workout-timer-by-zafapp/id1502215429/reviews) |
| Number of ratings | **19K** | 15 |
| Positive reviews | **72.9% of reviews** | 40.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 143 MB | 96 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [NEO PIXEL LABS PTE. LTD.](https://appshunter.io/developer/1788472183) | [Cuneyt Zafer](https://appshunter.io/developer/1183636133) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-tabata-timer/id406473568)

This app helps you manage workout intervals with customizable work and rest periods. It runs in the background and allows music playback, with options to save settings and share progress. Integrates with Apple Health for heart rate monitoring.

**Highlights:** Customizable sets, intervals, and rest times, Runs in background and with screen locked, Music playlist integration, Save settings as templates, Apple Health integration for heart rate, Post workouts to social media

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus - 1 Month | $0.99 | per month |
| Premium - 1 Month | $1.99 | per month |
| Plus - 1 Month | $1.99 | per month |
| Premium - 1 Month | $2.99 | per month |
| Plus - 1 Year | $4.99 | per year |
| Premium - 1 Year | $9.99 | per year |

**What reviewers like**

- 🚀 Free version works well
- 👍 Customizable intervals and timers
- 👍 Flexible for different workouts
- 👍 Easy to use and set up
- 👍 Provides visual and audio cues

**What reviewers complain about**

- 🐛 Timer issues (stops, loses time)
- 🔋 Drains battery when used
- 💰 Expensive subscription model
- 📢 Intrusive ads
- 🔒 Incompatible with other apps

**Reported bugs**

- Ads block functionality
- App freezes or crashes
- Timer doesn't work in background

**Requested features**

- Add notes to workouts
- Provide workout history and analytics
- Allow syncing with Apple Health
- Improve Apple Watch integration
- Add more customization options


### HIIT Workout Timer by Zafapp

[App page](https://appshunter.io/ios/app/hiit-workout-timer-by-zafapp/id1502215429)

This app helps you create custom interval training routines with adjustable sets, rounds, and exercise times. It also tracks your workout history, calculates calorie burn, and integrates with Apple Watch for heart rate monitoring and workout control.

**Highlights:** Custom interval timers (HIIT, Tabata), Reps and weight logging, Workout routine planner, Calorie burn calculation, Workout history and analysis, Apple Watch integration, Background music control

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $1.99 | one-time |
| Pro Version | $10.99 | one-time |
| Pro Version | $11.99 | one-time |


## Frequently asked questions

### Is Interval Timer free?

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

### Is HIIT Workout Timer by Zafapp free?

HIIT Workout Timer by Zafapp is free to download, with in-app purchases available.

### Which has better reviews, Interval Timer or HIIT Workout Timer by Zafapp?

Interval Timer and HIIT Workout Timer by Zafapp are both rated 4.5 out of 5 on the App Store, from 19K and 15 ratings respectively.

### Do Interval Timer or HIIT Workout Timer by Zafapp have ads?

Both Interval Timer and HIIT Workout Timer by Zafapp show ads.

### Which is updated more often, Interval Timer or HIIT Workout Timer by Zafapp?

Interval Timer ships an update every 9 days, and HIIT Workout Timer by Zafapp every 3 weeks. Most recently, Interval Timer was updated on September 29, 2026 and HIIT Workout Timer by Zafapp on August 23, 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.*