# Seconds Pro Interval Timer vs Sezzy Timer

The clearest difference is rating: Seconds Pro Interval Timer at 4.8 against Sezzy Timer's 3.9. Seconds Pro Interval Timer also leads on review sentiment (80% vs 50%) and ratings volume (12K vs 100). Sezzy Timer's advantage is price ($1.99 vs $7.99) and iOS requirement (12.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

Seconds Pro Interval Timer costs $7.99 and Sezzy Timer $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Seconds Pro Interval Timer holds the better App Store score, 4.8 against 3.9. That said, the two scores are not equally well evidenced: Seconds Pro Interval Timer has 12K ratings behind it against 100, so its average is the more settled of the two. Written reviews point the same way: 80% of Seconds Pro Interval Timer's written reviews are positive against 50% of Sezzy Timer's.

Seconds Pro Interval Timer ships an update fortnightly, Sezzy Timer every 3 months. The most recent releases landed on September 26, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Seconds Pro Interval Timer | Sezzy Timer |
| --- | --- | --- |
| Price | $7.99 | **$1.99** |
| Rating | **[4.8 (12K ratings)](https://appshunter.io/ios/app/seconds-pro-interval-timer/id363978811/reviews)** | [3.9 (100 ratings)](https://appshunter.io/ios/app/sezzy-timer/id1442742654/reviews) |
| Number of ratings | **12K** | 100 |
| Positive reviews | **79.9% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Paid | **Free** |
| Best chart rank | **#8** | #59 |
| Size | 94 MB | 22 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Runloop Ltd](https://appshunter.io/developer/325563420) | [Sarah's Day Pty Limited](https://appshunter.io/developer/1237846867) |

## What reviewers say

### Seconds Pro Interval Timer

[App page](https://appshunter.io/ios/app/seconds-pro-interval-timer/id363978811)

**Currently charting:** #8 Top Paid · Health & Fitness, #199 Top Paid (US App Store)

This interval timer app is designed for high-intensity interval training (HIIT), Tabata, and circuit training workouts. It features a large, color-coded display, customizable interval names, and background operation. It also integrates with Apple Health to track your fitness data.

**Highlights:** Full screen colored display, Templates for HIIT, Tabata, Circuit Training, Speaks interval names and provides warnings, Assign music per interval, Runs in background, Share interval timers, Apple Health integration

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

**In-app purchases:** none

**What reviewers like**

- ⭐ Great updates
- 🤖 Amazing voice prompts
- 👍 Easy to use
- 🎨 Highly customizable
- 🔧 Versatile for various workouts

**What reviewers complain about**

- 🐛 Occasional bugs and glitches
- 🔌 Music volume issues
- 🔍 Complicated setup for some features
- 🌐 Sync/sharing issues between devices
- 🔇 Inconsistent audio cues

**Reported bugs**

- Intervals randomly pausing or skipping
- Music volume issues when launching the app
- Inconsistent audio cues and countdown
- Sync issues between devices

**Requested features**

- Ability to lock Apple Watch screen
- Option to see more than just the next exercise
- Fractional time settings (e.g. 7.74 seconds)
- More voice/audio customization options
- Improved sync between iPhone and iPad


### Sezzy Timer

[App page](https://appshunter.io/ios/app/sezzy-timer/id1442742654)

**Currently charting:** #59 Top Paid · Health & Fitness (US App Store)

This app provides pre-formatted workout timers for various fitness routines, including HIIT and Pilates. It offers visual and auditory cues to guide users through exercises and rest periods, allowing for efficient and motivating workouts. Users can also create custom timers and listen to music simultaneously.

**Highlights:** Eleven unique pre-formatted timers, Custom timer creation, Visual and auditory cues, Background operation with music, Pause and play functionality, Next exercise display

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and intuitive user interface
- 🎵 Works seamlessly with background music (Spotify, Apple Music)
- 🎤 Sarah's voice guidance is motivating and helpful
- 💪 Perfect companion for Sarah's ebook workouts
- ⏱️ Eliminates need to manually set up interval timers

**What reviewers complain about**

- 🐛 Timer frequently crashes or stops mid-workout
- 🐛 Timer pauses when switching between apps
- ⏰ Timer accuracy issues (runs slow or fast)
- ❌ No back button to return to main menu
- ❌ Cannot skip ahead if timer accidentally exits

**Reported bugs**

- Timer stops or crashes mid-workout
- Timer pauses when switching to other apps
- Timer accuracy issues (runs faster or slower than expected)
- App crashes when phone screen locks
- Timer resets if accidentally navigate away

**Requested features**

- Apple Watch app support
- Add 20-second rest period option
- Save custom timer settings for reuse
- Skip/fast-forward button to jump between sets
- Back button to return to main menu


## Frequently asked questions

### Is Seconds Pro Interval Timer free?

Seconds Pro Interval Timer costs $7.99, with no in-app purchases.

### Is Sezzy Timer free?

Sezzy Timer costs $1.99, with no in-app purchases.

### Which has better reviews, Seconds Pro Interval Timer or Sezzy Timer?

Seconds Pro Interval Timer is rated higher. Seconds Pro Interval Timer averages 4.8 out of 5 from 12K ratings, while Sezzy Timer averages 3.9 from 100 ratings.

### Do Seconds Pro Interval Timer or Sezzy Timer have ads?

Neither Seconds Pro Interval Timer nor Sezzy Timer shows ads.

### Which is updated more often, Seconds Pro Interval Timer or Sezzy Timer?

Seconds Pro Interval Timer ships an update fortnightly, and Sezzy Timer every 3 months. Most recently, Seconds Pro Interval Timer was updated on September 26, 2026 and Sezzy Timer on September 23, 2026.

### Which is more popular, Seconds Pro Interval Timer or Sezzy Timer?

Seconds Pro Interval Timer currently peaks at #8 in the App Store charts, and Sezzy Timer at #59. Chart position reflects recent download velocity rather than total install base.

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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.*