# Best Interval Timer vs Fitsifu Timer

The clearest difference is in-app purchases: Best Interval Timer at none against Fitsifu Timer's 2. Best Interval Timer also leads on review sentiment (89% vs 63%). Fitsifu Timer's advantage is ads (none vs shown) and update cadence (every 5 days vs every 12 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Fitsifu Timer sells 2 in-app purchases, starting at $1.99 per month. Best Interval Timer asks for nothing beyond the download.

Fitsifu Timer holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Fitsifu Timer has 611 ratings behind it against 81, so its average is the more settled of the two. Written reviews complicate that: 89% of Best Interval Timer's written reviews are positive against 63% of Fitsifu Timer's, so the app with the better star average is not the one people write more warmly about.

Best Interval Timer ships an update every 12 months, Fitsifu Timer every 5 days. The most recent releases landed on September 28, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Best Interval Timer | Fitsifu Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (81 ratings)](https://appshunter.io/ios/app/best-interval-timer/id547542742/reviews) | **[4.8 (611 ratings)](https://appshunter.io/ios/app/fitsifu-timer/id1086916546/reviews)** |
| Number of ratings | 81 | **611** |
| Positive reviews | **89.3% of reviews** | 62.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 12 months | **Every 5 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 19 MB | 58 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [倩 赵](https://appshunter.io/developer/376557917) | [ALPHAPOD X SDN. BHD.](https://appshunter.io/developer/588607670) |

## What reviewers say

### Best Interval Timer

[App page](https://appshunter.io/ios/app/best-interval-timer/id547542742)

This app acts as your personal coach, guiding you through workouts with customizable routines. Focus on your exercise while it manages timing for warm-up, high/low intensity intervals, cool-downs, and rest periods.

**Highlights:** Customizable workout routines, Warm-up, intensity, cool-down, rest periods, Background and multitasking support, Adjustable interval sounds and vibrations, Workout practice tracking, Landscape and portrait orientation

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 👍 Simple and functional
- 👍 Free
- 👍 Customizable intervals
- 👍 Works in background

**What reviewers complain about**

- 🐛 Too many ads
- 🐛 Limited programmable routines (free version)
- 🐛 Ads block screen in landscape
- 🐛 Small numbers hard to read
- 🐛 Side view unusable

**Reported bugs**

- App stops working after rating notification
- Buttons don't work after rating notification
- Crashes when saving timers
- Crashes when editing exercises
- Freezes and stops working

**Requested features**

- Ability to save multiple intervals/routines
- Voice cues for start/stop
- Apple Watch compatibility
- Larger buttons and text
- Option to save different schedules (e.g., Tabata)


### Fitsifu Timer

[App page](https://appshunter.io/ios/app/fitsifu-timer/id1086916546)

This interval training app helps you achieve your fitness goals with a customizable timer. It supports various workout styles and provides audio alerts for seamless transitions. Premium features offer advanced customization and trainer-designed workouts.

**Highlights:** Customizable interval timer, Color-coded interval indicators, Audio alerts for interval changes, Works in background, Trainer-designed workout presets, Muscle recovery timer, Spotify integration

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly Subscription | $1.99 | per month |
| PRO Version | $4.99 | one-time |

**What reviewers like**

- 🚀 Game Changer
- 🚀 The Difference
- 👍 Excellent app
- 🚀 Great customer service!
- 🚀 Super good

**What reviewers complain about**

- 🐛 No funciona!
- 🐛 Useless, muscle rest timers don't work
- 🔒 Requiere suscripción para apple watch
- 🐛 No la actualicen
- 🔒 Now charges for what used to be included

**Reported bugs**

- Every workout timing end with an extra rest time
- Unable to save custom timers
- App goes to random other promo apps, doesn't not stay in timer but goes to random sites, can't save timer
- Won't open, crashes on iPhone

**Requested features**

- Round rest
- custom version for the apple watch
- language selection
- ability to make their own name for the muscle timers
- lockscreen shortcut


## Frequently asked questions

### Is Best Interval Timer free?

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

### Is Fitsifu Timer free?

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

### Which has better reviews, Best Interval Timer or Fitsifu Timer?

Fitsifu Timer is rated higher. Best Interval Timer averages 4.6 out of 5 from 81 ratings, while Fitsifu Timer averages 4.8 from 611 ratings.

### Do Best Interval Timer or Fitsifu Timer have ads?

Best Interval Timer shows ads; Fitsifu Timer does not.

### Which is updated more often, Best Interval Timer or Fitsifu Timer?

Best Interval Timer ships an update every 12 months, and Fitsifu Timer every 5 days. Most recently, Best Interval Timer was updated on September 28, 2026 and Fitsifu Timer on September 19, 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.*