# iTabata Timer! vs Jab

The clearest difference is update cadence: Jab at every 4 days against iTabata Timer!'s fortnightly. iTabata Timer!'s advantage is iOS requirement (10.0 vs 15.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

iTabata Timer! ships an update fortnightly, Jab every 4 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | iTabata Timer! | Jab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/jab-boxing-trainer/id6760632499/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free | Free |
| Size | 40 MB | 9 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tien Nguyen Viet](https://appshunter.io/developer/1080185856) | [Duc Anh Tran](https://appshunter.io/developer/1885426915) |

## What reviewers say

### iTabata Timer!

[App page](https://appshunter.io/ios/app/itabata-timer/id1080185857)

This interval timer is designed for Tabata training enthusiasts. Customize exercise duration, rest periods, and repetitions for your high-intensity workouts. It's a universal app compatible with both iPhone and iPad.

**Highlights:** Customizable exercise intervals, Customizable rest intervals, Adjustable repeat times, Adjustable preparation time, Universal iPhone and iPad support

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

**In-app purchases:** none


### Jab

[App page](https://appshunter.io/ios/app/jab-boxing-trainer/id6760632499)

This app guides you through boxing workouts with voice-called combos and a round timer. Track your punches per minute and progress through 15 distinct training sessions, from beginner basics to advanced camp routines. It's designed for effective training without distractions.

**Highlights:** Voice-guided combo callouts, 15 boxing workouts, Round timer with boxing bells, Punch tracking (punches per minute), Offline functionality, Progress tracking and personal records

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

**In-app purchases:** none


## Frequently asked questions

### Is iTabata Timer! free?

iTabata Timer! is free to download, with no in-app purchases.

### Is Jab free?

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

### Do iTabata Timer! or Jab have ads?

Neither iTabata Timer! nor Jab shows ads.

### Which is updated more often, iTabata Timer! or Jab?

iTabata Timer! ships an update fortnightly, and Jab every 4 days. Most recently, iTabata Timer! was updated on November 2, 2026 and Jab on October 31, 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.*