# Interval Timer X Workout Timer vs Plankstar

The clearest difference is review sentiment: Interval Timer X Workout Timer at 94% against Plankstar's 29%. Interval Timer X Workout Timer also leads on rating (4.8 vs 3.5) and ratings volume (686 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Interval Timer X Workout Timer sells 1 one-off in-app purchase and Plankstar sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Interval Timer X Workout Timer holds the better App Store score, 4.8 against 3.5. That said, the two scores are not equally well evidenced: Interval Timer X Workout Timer has 686 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 94% of Interval Timer X Workout Timer's written reviews are positive against 29% of Plankstar's.

Interval Timer X Workout Timer ships an update every 6 weeks, Plankstar every 3 months. The most recent releases landed on September 21, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Interval Timer X Workout Timer | Plankstar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (686 ratings)](https://appshunter.io/ios/app/interval-timer-x-workout-timer/id1448144846/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/plankstar-plank-workout-timer/id1607941164/reviews) |
| Number of ratings | **686** | 2 |
| Positive reviews | **93.7% of reviews** | 28.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 45 MB | 107 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [世恬 颜](https://appshunter.io/developer/1448144845) | [Youngwan Choi](https://appshunter.io/developer/468424676) |

## What reviewers say

### Interval Timer X Workout Timer

[App page](https://appshunter.io/ios/app/interval-timer-x-workout-timer/id1448144846)

This versatile timer helps you structure workouts, manage daily tasks, and achieve fitness goals. Customize routines, track progress with visual cues, and stay motivated with customizable sounds. Ideal for HIIT, Tabata, yoga, and more.

**Highlights:** Customizable workout routines, Standalone interval timer/counter, Routine combination feature, Customizable warning sounds, Intuitive interface with dark mode, Background usage support, Workout summary and history

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Interval Timer X Premium | $6.99 | one-time |

**What reviewers like**

- 🚀 Interval timer
- 👍 Easy to use
- 👍 Customizable
- 👍 Useful for workouts
- 👍 Reliable

**What reviewers complain about**

- 💰 Ads in free version
- 🐛 Occasional bugs or crashes

**Reported bugs**

- Interval set index display issue
- Compatibility issues with older devices

**Requested features**

- Audio ducking for music playback
- Voice countdown
- Ability to store custom settings automatically
- Vibration option in addition to audio


### Plankstar

[App page](https://appshunter.io/ios/app/plankstar-plank-workout-timer/id1607941164)

This app helps you track and improve your plank workouts with various timer modes, voice guidance, and detailed statistics. It automatically records your progress and allows you to share achievements. Unlock premium features and remove ads with an in-app purchase.

**Highlights:** Plank timer with goal, max time, and set modes, Voice guidance and sound effects, Automatic workout recording, Workout calendar and statistics, Customizable challenges, Apple Health integration, Social sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $0.99 | per month |
| Annual Premium | $3.99 | per year |
| Lifetime Premium | $19.99 | one-time |


## Frequently asked questions

### Is Interval Timer X Workout Timer free?

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

### Is Plankstar free?

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

### Which has better reviews, Interval Timer X Workout Timer or Plankstar?

Interval Timer X Workout Timer is rated higher. Interval Timer X Workout Timer averages 4.8 out of 5 from 686 ratings, while Plankstar averages 3.5 from 2 ratings.

### Do Interval Timer X Workout Timer or Plankstar have ads?

Both Interval Timer X Workout Timer and Plankstar show ads.

### Which is updated more often, Interval Timer X Workout Timer or Plankstar?

Interval Timer X Workout Timer ships an update every 6 weeks, and Plankstar every 3 months. Most recently, Interval Timer X Workout Timer was updated on September 21, 2026 and Plankstar on September 17, 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.*