# Interval Timer vs TimerNinja

The clearest difference is ads: TimerNinja at none against Interval Timer's shown. TimerNinja also leads on review sentiment (83% vs 73%) and device support (6 vs 4). Interval Timer's advantage is rating (4.8 vs 4.4) and ratings volume (297 vs 9). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Interval Timer sells 8 in-app purchases, starting at $3.99 per month and TimerNinja sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Interval Timer holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Interval Timer has 297 ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 73% of Interval Timer's written reviews are positive against 83% of TimerNinja's, so the app with the better star average is not the one people write more warmly about.

Interval Timer ships an update fortnightly, TimerNinja every 3 weeks. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Interval Timer | TimerNinja |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (297 ratings)](https://appshunter.io/ios/app/interval-timer-purehiit/id1198752738/reviews)** | [4.4 (9 ratings)](https://appshunter.io/ios/app/timerninja-activity-timers/id1591804917/reviews) |
| Number of ratings | **297** | 9 |
| Positive reviews | 73.3% of reviews | **83.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 45 MB | 20 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPad, iPod, Apple Watch | **iPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro** |
| Age rating | +4 | 4+ |
| Developer | [Miklos Pavel](https://appshunter.io/developer/979923367) | [Heftii, Inc.](https://appshunter.io/developer/1588613002) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-purehiit/id1198752738)

This app provides a simple and customizable timer for interval training like HIIT, Tabata, and EMOM. It offers audio cues, background operation, and integrates with Apple Watch for health tracking. Pre-built routines and workout reminders help users stay consistent with their fitness goals.

**Highlights:** Customizable interval timer, Audio alerts for rounds, Background operation, Apple Watch integration, Workout reminders, Pre-built routines

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $19.99 | per year |
| Premium features | Free | one-time |
| Remove Ads | $1.99 | one-time |
| Custom sounds | $1.99 | one-time |
| Premium features | $4.99 | one-time |
| Premium features | $9.99 | one-time |
| Premium features | $14.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 👍 Great timer functionality
- 👍 Can program intervals (warmup, activity, rest, cool down)
- 👍 Supports many rounds (up to 100)
- 👍 Ability to save workouts

**What reviewers complain about**

- 💰 App became paid unexpectedly
- 💰 Premium required to start timer
- 💡 Round cap limits functionality for high rep activities
- 💡 Needs more than 30 intervals for some routines (e.g., stretching)
- 💡 Lacks a background click feature (e.g., every second)

**Reported bugs**

- Advertisements still present after paying for removal
- App requires premium to start timer (recent change)

**Requested features**

- Remove the cap on rounds
- Add a background click feature (e.g., every second)
- More sound options
- Option for more than one workout
- Add a halfway beep


### TimerNinja

[App page](https://appshunter.io/ios/app/timerninja-activity-timers/id1591804917)

This app provides a versatile interval timer for various activities, from workouts to focus sessions. It offers pre-made routines and customization options, syncing across Apple devices and integrating with Apple Health. Enjoy advanced features and sound packs with an optional subscription.

**Highlights:** Interval, HIIT & Tabata timers, Customizable workout routines, Cross-device synchronization (iCloud), Apple Watch integration, Live Activities and widgets, Apple Health integration, SharePlay for synchronized workouts

**Features:** Family Sharing, Apple Watch app, SharePlay, iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TimerNinja+ Monthly | $2.99 | per month |
| TimerNinja+ Family Monthly | $3.99 | per month |
| TimerNinja+ Yearly | $9.99 | per year |
| TimerNinja+ Family Yearly | $14.99 | per year |


## Frequently asked questions

### Is Interval Timer free?

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

### Is TimerNinja free?

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

### Which has better reviews, Interval Timer or TimerNinja?

Interval Timer is rated higher. Interval Timer averages 4.8 out of 5 from 297 ratings, while TimerNinja averages 4.4 from 9 ratings.

### Do Interval Timer or TimerNinja have ads?

Interval Timer shows ads; TimerNinja does not.

### Which is updated more often, Interval Timer or TimerNinja?

Interval Timer ships an update fortnightly, and TimerNinja every 3 weeks. Most recently, Interval Timer was updated on October 26, 2026 and TimerNinja on October 30, 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.*