# Seconds Interval Timer vs Sezzy Timer

The clearest difference is price: Seconds Interval Timer at Free against Sezzy Timer's $1.99. Seconds Interval Timer also leads on rating (4.7 vs 3.9) and review sentiment (75% vs 50%). Sezzy Timer's advantage is in-app purchases (none vs 1) and chart position (#96 vs unranked). On ads and device support there is nothing between them.

Seconds Interval Timer is free to download; Sezzy Timer costs $1.99 up front. Seconds Interval Timer sells 1 one-off in-app purchase. Sezzy Timer asks for nothing beyond the download.

Seconds Interval Timer holds the better App Store score, 4.7 against 3.9. That said, the two scores are not equally well evidenced: Seconds Interval Timer has 24K ratings behind it against 100, so its average is the more settled of the two. Written reviews point the same way: 75% of Seconds Interval Timer's written reviews are positive against 50% of Sezzy Timer's.

Seconds Interval Timer ships an update monthly, Sezzy Timer every 3 months. The most recent releases landed on September 27, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Seconds Interval Timer | Sezzy Timer |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.7 (24K ratings)](https://appshunter.io/ios/app/seconds-interval-timer/id475816966/reviews)** | [3.9 (100 ratings)](https://appshunter.io/ios/app/sezzy-timer/id1442742654/reviews) |
| Number of ratings | **24K** | 100 |
| Positive reviews | **75.1% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | — | **#96** |
| Size | 95 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 Interval Timer

[App page](https://appshunter.io/ios/app/seconds-interval-timer/id475816966)

This app provides a versatile interval timer for various workout types like Tabata, HIIT, and circuit training. It features a clear, full-screen display, customizable alerts, and background operation. Users can also utilize a stopwatch and countdown timer, with integration for Apple Health.

**Highlights:** Full-screen colored display, Templates for HIIT, Tabata, Circuit Training, Voice and audio alerts, Music assignment per interval, Background operation, Apple Health integration, Stopwatch and countdown timer

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced Version | $7.99 | one-time |

**What reviewers like**

- 🚀 Great workout app
- 👍 Customizable and user-friendly
- 🔒 Reliable and stable
- 💡 Versatile for various workouts
- 👍 Easy to create and edit timers

**What reviewers complain about**

- 🐛 Occasional audio issues
- 🔍 Limited Apple Watch integration
- 💰 Paid version required for full functionality
- 🕰️ Time-consuming to set up complex workouts

**Reported bugs**

- Timer sometimes stops working unexpectedly
- Issues with restoring purchases on new devices

**Requested features**

- Ability to change beep/alert volume independently
- Option to delay transition between intervals
- Sync workouts across devices
- More preset workout templates
- Heart rate monitoring integration


### Sezzy Timer

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

**Currently charting:** #96 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 Interval Timer free?

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

### Is Sezzy Timer free?

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

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

Seconds Interval Timer is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while Sezzy Timer averages 3.9 from 100 ratings.

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

Neither Seconds Interval Timer nor Sezzy Timer shows ads.

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

Seconds Interval Timer ships an update monthly, and Sezzy Timer every 3 months. Most recently, Seconds Interval Timer was updated on September 27, 2026 and Sezzy Timer on September 23, 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.*