# HIIT Timer / Interval Timer vs OTTO SPORT

The clearest difference is ads: OTTO SPORT at none against HIIT Timer / Interval Timer's shown. OTTO SPORT also leads on update cadence (every 9 days vs every 2 months) and ratings volume (5.1K vs 14). On price, rating, in-app purchases and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for HIIT Timer / Interval Timer against 4.8 for OTTO SPORT. That said, the two scores are not equally well evidenced: OTTO SPORT has 5.1K ratings behind it against 14, so its average is the more settled of the two.

HIIT Timer / Interval Timer ships an update every 2 months, OTTO SPORT every 9 days. The most recent releases landed on October 4, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | HIIT Timer / Interval Timer | OTTO SPORT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (14 ratings)](https://appshunter.io/ios/app/hiit-timer-interval-timer/id1610842683/reviews)** | [4.8 (5.1K ratings)](https://appshunter.io/ios/app/otto-sport/id6446284169/reviews) |
| Number of ratings | 14 | **5.1K** |
| Positive reviews | — | 55.2% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Ad-supported | **Free** |
| Size | 12 MB | 59 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [FugaPiyo Inc.](https://appshunter.io/developer/1497887610) | [Agt Sport, Inc](https://appshunter.io/developer/6802684958) |

## What reviewers say

### HIIT Timer / Interval Timer

[App page](https://appshunter.io/ios/app/hiit-timer-interval-timer/id1610842683)

This app provides a customizable timer for high-intensity interval training. Easily set up warm-up, workout, and cool-down periods with adjustable intervals and counts. Personalize colors, sounds, and notifications for a tailored experience.

**Highlights:** Unlimited timer creation, Customizable intervals (warm-up, workout, cool-down), Adjustable counts, Color and sound customization, Dark mode support, Background notifications

**Features:** Vision Pro support

**In-app purchases:** none


### OTTO SPORT

[App page](https://appshunter.io/ios/app/otto-sport/id6446284169)

This app streamlines youth sports management for organizers, coaches, and parents. It centralizes team information, schedules, and communication, ensuring everyone stays informed and organized throughout the season. Permission-based access guarantees that only relevant individuals see specific team details.

**Highlights:** Team roster and schedule access, Event and assignment management, Built-in messaging tools, Household and profile management, Permission-based access control, Light and dark mode interface

**In-app purchases:** none

**What reviewers like**

- 🚀 Efficient and user-friendly
- 📅 Helpful for managing schedules
- 💬 Good communication features
- 🗓️ Convenient calendar sync
- 🤝 Great for team management

**What reviewers complain about**

- 🐛 Buggy notifications and messaging
- 🔍 Lack of visibility into team/event details
- 🚫 Inability to share photos/files
- 🔄 Inconsistent sync and update issues
- 🤯 Frustrating user experience for some

**Reported bugs**

- Notifications not working consistently
- Calendar sync issues and missing details
- Messaging problems like duplicated messages
- Crashes and freezes reported by some users
- Compatibility issues with certain devices

**Requested features**

- Add ability to share photos and files
- Improve calendar sync and customization
- Enhance messaging and notification features
- Provide better visibility into team/event details
- Streamline user experience and reduce bugs


## Frequently asked questions

### Is HIIT Timer / Interval Timer free?

HIIT Timer / Interval Timer is free to download, with no in-app purchases.

### Is OTTO SPORT free?

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

### Which has better reviews, HIIT Timer / Interval Timer or OTTO SPORT?

HIIT Timer / Interval Timer is rated higher. HIIT Timer / Interval Timer averages 4.9 out of 5 from 14 ratings, while OTTO SPORT averages 4.8 from 5.1K ratings.

### Do HIIT Timer / Interval Timer or OTTO SPORT have ads?

HIIT Timer / Interval Timer shows ads; OTTO SPORT does not.

### Which is updated more often, HIIT Timer / Interval Timer or OTTO SPORT?

HIIT Timer / Interval Timer ships an update every 2 months, and OTTO SPORT every 9 days. Most recently, HIIT Timer / Interval Timer was updated on October 4, 2026 and OTTO SPORT 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.*