# SharkJR vs Interval Timer · Tabata & HIIT

The clearest difference is in-app purchases: SharkJR at none against Interval Timer · Tabata & HIIT's 3. SharkJR also leads on update cadence (every 9 days vs monthly) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Interval Timer · Tabata & HIIT sells 3 in-app purchases, starting at $2.99 per month. SharkJR asks for nothing beyond the download.

SharkJR ships an update every 9 days, Interval Timer · Tabata & HIIT monthly. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | SharkJR | Interval Timer · Tabata & HIIT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sharkjr/id1637506891/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Monetization | Ad-supported | — |
| Size | 69 MB | 6 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Mostafa Hesham](https://appshunter.io/developer/1621969501) | [jean-baptiste delcros](https://appshunter.io/developer/1727119809) |

## What reviewers say

### SharkJR

[App page](https://appshunter.io/ios/app/sharkjr/id1637506891)

This app offers a personalized online fitness journey with custom nutrition plans and engaging workouts. It helps you track water intake, sleep, and more with a real-time companion.

**Highlights:** Customized nutrition plans, Engaging exercises, Real-time workout companion, Water intake tracking, Sleep tracking, Coffee intake tracking

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

**In-app purchases:** none


### Interval Timer · Tabata & HIIT

[App page](https://appshunter.io/ios/app/interval-timer-tabata-and-hiit/id6757807644)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly plan | $2.99 | per month |
| Lifetime Access | $9.99 | one-time |
| Lifetime Access | $19.99 | one-time |


## Frequently asked questions

### Is SharkJR free?

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

### Is Interval Timer · Tabata & HIIT free?

Interval Timer · Tabata & HIIT is free to download, with in-app purchases available.

### Do SharkJR or Interval Timer · Tabata & HIIT have ads?

Neither SharkJR nor Interval Timer · Tabata & HIIT shows ads.

### Which is updated more often, SharkJR or Interval Timer · Tabata & HIIT?

SharkJR ships an update every 9 days, and Interval Timer · Tabata & HIIT monthly. Most recently, SharkJR was updated on October 25, 2026 and Interval Timer · Tabata & HIIT on October 18, 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.*