# Interval Timer vs Just'a Tabata

The clearest difference is update cadence: Just'a Tabata at every 5 days against Interval Timer's every 3 months. Just'a Tabata also leads on device support (3 vs 1). Interval Timer's advantage is iOS requirement (17.0 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Interval Timer sells 1 in-app purchase, starting at $5.99 per month and Just'a Tabata 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 ships an update every 3 months, Just'a Tabata every 5 days. The most recent releases landed on September 22, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Interval Timer | Just'a Tabata |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 5 days** |
| Size | 6 MB | 21 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Rajendran Sajith Sajindran](https://appshunter.io/developer/1769186344) | [Vinh Nguyen](https://appshunter.io/developer/1802304933) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-tabata-hiit/id6755467400)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Interval Timer - Pro | $5.99 | per month |


### Just'a Tabata

[App page](https://appshunter.io/ios/app/justa-tabata-a-workout-timer/id6789550194)

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $0.99 | per month |
| Pro Yearly | $4.99 | per year |
| Pro Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Interval Timer free?

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

### Is Just'a Tabata free?

Just'a Tabata is free to download, with in-app purchases available.

### Do Interval Timer or Just'a Tabata have ads?

Both Interval Timer and Just'a Tabata show ads.

### Which is updated more often, Interval Timer or Just'a Tabata?

Interval Timer ships an update every 3 months, and Just'a Tabata every 5 days. Most recently, Interval Timer was updated on September 22, 2026 and Just'a Tabata on September 29, 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.*