# Interval Timer ▸ HIIT & Tabata vs HL7 CRAYFISH

The clearest difference is update cadence: HL7 CRAYFISH at every 2 months against Interval Timer ▸ HIIT & Tabata's every 11 months. Interval Timer ▸ HIIT & Tabata's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

Interval Timer ▸ HIIT & Tabata ships an update every 11 months, HL7 CRAYFISH every 2 months. The most recent releases landed on October 24, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Interval Timer ▸ HIIT & Tabata | HL7 CRAYFISH |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/interval-timer-hiit-and-tabata/id6469007234/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 16 MB | 4 MB |
| Requires iOS | **16.6** | 17.2 |
| Devices | **iPhone, iPad, Apple TV, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Juxhin Bakalli Technologies](https://appshunter.io/developer/1711254538) | [NOBORU HORIKOSHI](https://appshunter.io/developer/1797085962) |

## What reviewers say

### Interval Timer ▸ HIIT & Tabata

[App page](https://appshunter.io/ios/app/interval-timer-hiit-and-tabata/id6469007234)

This app helps you structure and time your workouts with customizable intervals, alerts, and repeating sets. It's ideal for various fitness activities like HIIT, Tabata, boxing, running, and circuit training.

**Highlights:** Customizable intervals (work, rest, recovery), Customizable sound and visual alerts, Repeating sets programming, Countdown timer with visual cues, Supports HIIT, Tabata, boxing, running, circuit training, yoga, meditation

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

**In-app purchases:** none


### HL7 CRAYFISH

[App page](https://appshunter.io/ios/app/hl7-crayfish/id6742149862)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

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

Interval Timer ▸ HIIT & Tabata is free to download, with no in-app purchases.

### Is HL7 CRAYFISH free?

HL7 CRAYFISH is free to download, with no in-app purchases.

### Do Interval Timer ▸ HIIT & Tabata or HL7 CRAYFISH have ads?

Neither Interval Timer ▸ HIIT & Tabata nor HL7 CRAYFISH shows ads.

### Which is updated more often, Interval Timer ▸ HIIT & Tabata or HL7 CRAYFISH?

Interval Timer ▸ HIIT & Tabata ships an update every 11 months, and HL7 CRAYFISH every 2 months. Most recently, Interval Timer ▸ HIIT & Tabata was updated on October 24, 2026 and HL7 CRAYFISH on October 2, 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.*