# Tabata Timer vs GKF Studio

The clearest difference is in-app purchases: GKF Studio at none against Tabata Timer's 5. GKF Studio also leads on ads (none vs shown) and iOS requirement (11.0.0 vs 15.6). Tabata Timer's advantage is update cadence (every 10 days vs every 44 months) and ratings volume (9.2K vs 3). On price, rating, review sentiment and device support there is nothing between them.

Both are free to download. Tabata Timer sells 5 in-app purchases, starting at $1.49 per month. GKF Studio asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Tabata Timer against 5.0 for GKF Studio. That said, the two scores are not equally well evidenced: Tabata Timer has 9.2K ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 98% of Tabata Timer's written reviews are positive against 100% of GKF Studio's.

Tabata Timer ships an update every 10 days, GKF Studio every 44 months. The most recent releases landed on October 13, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Tabata Timer | GKF Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (9.2K ratings)](https://appshunter.io/ios/app/tabata-timer-interval-timer/id1255964203/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/gkf-studio/id1537596785/reviews)** |
| Number of ratings | **9.2K** | 3 |
| Positive reviews | 98.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Every 44 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 40 MB | 68 MB |
| Requires iOS | 15.6 | **11.0.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oleksandr Serhiienko](https://appshunter.io/developer/1255964202) | [Get Kristen Fit LLC](https://appshunter.io/developer/1537597147) |

## What reviewers say

### Tabata Timer

[App page](https://appshunter.io/ios/app/tabata-timer-interval-timer/id1255964203)

This app provides a versatile interval timer for high-intensity workouts like HIIT and Tabata. Users can create custom routines with adjustable work/rest times, sets, and cycles, and receive voice cues. It functions as a background companion to keep you focused during training.

**Highlights:** Customizable interval timers, HIIT and Tabata training support, Adjustable work and rest times, Set and cycle configuration, Interval naming, Background operation, Voice cues

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.49 | per month |
| Premium | $2.99 | per 3 months |
| Premium | $4.49 | per 6 months |
| Premium | $7.49 | per year |
| Premium | $9.99 | one-time |

**What reviewers like**

- 👍 User-friendly
- 🚀 Customizable workouts
- 🔊 Clear audio cues
- 💡 Ability to save multiple workouts
- 🎵 Plays music in the background

**What reviewers complain about**

- 🐛 Occasional crashes or glitches
- 🔒 Limited free version (only 2 saved workouts)
- 💰 Paid version required for more features
- 🔀 Easy to accidentally skip intervals
- 🔍 Cluttered interface for some users

**Reported bugs**

- Workouts not saving properly
- Sync issues between app and Apple Watch
- Occasional freezing or restarting of device

**Requested features**

- Ability to name and save more workouts in free version
- Option to add exercise images or videos
- Sync workouts across devices
- Customizable sounds and alerts
- Workout history and progress tracking


### GKF Studio

[App page](https://appshunter.io/ios/app/gkf-studio/id1537596785)

Book fitness sessions and view class schedules directly through the app. Stay updated on class times and reserve your spot easily. Manage your fitness journey conveniently.

**Highlights:** View class schedules, Book fitness sessions, Manage bookings, Stay updated on class times, Easy session reservation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tabata Timer free?

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

### Is GKF Studio free?

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

### Which has better reviews, Tabata Timer or GKF Studio?

GKF Studio is rated higher. Tabata Timer averages 4.9 out of 5 from 9.2K ratings, while GKF Studio averages 5.0 from 3 ratings.

### Do Tabata Timer or GKF Studio have ads?

Tabata Timer shows ads; GKF Studio does not.

### Which is updated more often, Tabata Timer or GKF Studio?

Tabata Timer ships an update every 10 days, and GKF Studio every 44 months. Most recently, Tabata Timer was updated on October 13, 2026 and GKF Studio on October 1, 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.*