# Interval Timer □ HIIT Timer vs Timeline

The clearest difference is review sentiment: Timeline at 100% against Interval Timer □ HIIT Timer's 61%. Timeline also leads on monetization model (free vs freemium) and iOS requirement (12.0 vs 15.6). Interval Timer □ HIIT Timer's advantage is update cadence (every 5 weeks vs every 22 months) and ratings volume (87K vs 9). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Interval Timer □ HIIT Timer sells 5 in-app purchases, starting at $1.99 per month and Timeline sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Interval Timer □ HIIT Timer holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Interval Timer □ HIIT Timer has 87K ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 61% of Interval Timer □ HIIT Timer's written reviews are positive against 100% of Timeline's, so the app with the better star average is not the one people write more warmly about.

Interval Timer □ HIIT Timer ships an update every 5 weeks, Timeline every 22 months. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Interval Timer □ HIIT Timer | Timeline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (87K ratings)](https://appshunter.io/ios/app/interval-timer-hiit-timer/id1124297113/reviews)** | [4.6 (9 ratings)](https://appshunter.io/ios/app/timeline-interval-timer/id1234080761/reviews) |
| Number of ratings | **87K** | 9 |
| Positive reviews | 60.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 22 months |
| Monetization | Freemium | **Free** |
| Size | 34 MB | 9 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Float Tech, LLC](https://appshunter.io/developer/483697886) | [Fly Your Vision B.V.](https://appshunter.io/developer/1022537687) |

## What reviewers say

### Interval Timer □ HIIT Timer

[App page](https://appshunter.io/ios/app/interval-timer-hiit-timer/id1124297113)

Create custom workout timers with adjustable intervals for exercise and rest.  Track your progress with detailed history and statistics, and repeat past workouts easily.  Enjoy audio cues without interrupting your music.

**Highlights:** Customizable intervals, Workout and rest timers, Voice or beep guides, Background audio support, Workout history and statistics, Repeat previous workouts

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Pass | $1.99 | per month |
| Premium Pass | $2.99 | per month |
| Lifetime Pass | $14.99 | one-time |
| Lifetime Pass | $19.99 | one-time |
| Premium Forever Promo | $29.99 | one-time |

**What reviewers like**

- 🚀 Simple and easy to use
- 👍 Customizable settings
- 🚀 Intuitive interface
- 🚀 Effective for HIIT workouts
- 👍 Helpful voice prompts

**What reviewers complain about**

- 🔒 Requires subscription after limited free use
- 🐛 Music volume issues with voice prompts
- 🐛 Inconsistent behavior when switching apps
- 🐛 Lack of final workout notification

**Reported bugs**

- Timer not always accurate
- Favorites/saved workouts feature not working
- Inconsistent behavior when pausing/resuming

**Requested features**

- Ability to save and name custom workouts
- More flexibility in exercise/rest time settings
- Option to adjust volume of voice prompts


### Timeline

[App page](https://appshunter.io/ios/app/timeline-interval-timer/id1234080761)

This app provides a highly customizable interval timer for various activities, including fitness, exercise, and productivity. Create and manage timer sequences with intuitive gestures, utilize ready-made templates, and share your routines with others. Enjoy spoken prompts and motivational messages to stay on track.

**Highlights:** Flexible interval timer design, Intuitive gesture-based timer creation, Ready-made schemes and templates, Manage and arrange timers by category, Share timers with friends or clients, Spoken timers and motivational messages, Continuous alarm option

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Timeline Interval Timer Pro | $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 Timeline free?

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

### Which has better reviews, Interval Timer □ HIIT Timer or Timeline?

Interval Timer □ HIIT Timer is rated higher. Interval Timer □ HIIT Timer averages 4.8 out of 5 from 87K ratings, while Timeline averages 4.6 from 9 ratings.

### Do Interval Timer □ HIIT Timer or Timeline have ads?

Neither Interval Timer □ HIIT Timer nor Timeline shows ads.

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

Interval Timer □ HIIT Timer ships an update every 5 weeks, and Timeline every 22 months. Most recently, Interval Timer □ HIIT Timer was updated on October 30, 2026 and Timeline on October 24, 2026.

---

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