# HIIT Interval Timer vs Jidensha

The clearest difference is in-app purchases: Jidensha at none against HIIT Interval Timer's 1. Jidensha also leads on ads (none vs shown). HIIT Interval Timer's advantage is iOS requirement (15.6 vs 17.4). On price, update cadence and device support there is nothing between them.

Both are free to download. HIIT Interval Timer sells 1 one-off in-app purchase. Jidensha asks for nothing beyond the download.

HIIT Interval Timer ships an update every 5 months, Jidensha every 8 months. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | HIIT Interval Timer | Jidensha |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (102 ratings)](https://appshunter.io/ios/app/hiit-interval-timer/id980471893/reviews)** | — |
| Number of ratings | **102** | — |
| Positive reviews | 52.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 months** | Every 8 months |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 1 MB |
| Requires iOS | **15.6** | 17.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Thang Nguyen](https://appshunter.io/developer/921360262) | [Mercury Software Japan Inc.](https://appshunter.io/developer/580775861) |

## What reviewers say

### HIIT Interval Timer

[App page](https://appshunter.io/ios/app/hiit-interval-timer/id980471893)

This app provides a flexible interval timer for high-intensity training. Customize workout cycles, rest periods, and receive color, voice, and sound navigation cues. It runs in the background and offers a built-in music player.

**Highlights:** Customizable interval and rest times, Background and screen-locked operation, Color, voice, and sound navigation, Built-in music player, Create and manage custom timers, Multiple themes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Upgrade | $4.99 | one-time |


### Jidensha

[App page](https://appshunter.io/ios/app/jidensha/id1069754855)

**In-app purchases:** none


## Frequently asked questions

### Is HIIT Interval Timer free?

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

### Is Jidensha free?

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

### Do HIIT Interval Timer or Jidensha have ads?

HIIT Interval Timer shows ads; Jidensha does not.

### Which is updated more often, HIIT Interval Timer or Jidensha?

HIIT Interval Timer ships an update every 5 months, and Jidensha every 8 months. Most recently, HIIT Interval Timer was updated on October 8, 2026 and Jidensha on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*