# Sezzy Timer vs HEYKIN

The clearest difference is price: HEYKIN at Free against Sezzy Timer's $1.99. Sezzy Timer's advantage is in-app purchases (none vs 4) and iOS requirement (12.0 vs 15.1). On update cadence, ads and device support there is nothing between them.

HEYKIN is free to download; Sezzy Timer costs $1.99 up front. HEYKIN sells 4 in-app purchases, starting at $14.99 per month. Sezzy Timer asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 19, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Sezzy Timer | HEYKIN |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[3.9 (100 ratings)](https://appshunter.io/ios/app/sezzy-timer/id1442742654/reviews)** | — |
| Number of ratings | **100** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Size | 22 MB | 53 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Sarah's Day Pty Limited](https://appshunter.io/developer/1237846867) | [Carl Muller](https://appshunter.io/developer/1895333582) |

## What reviewers say

### Sezzy Timer

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

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


### HEYKIN

[App page](https://appshunter.io/ios/app/heykin/id6763480273)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Heykin Life Coach | $14.99 | per month |
| Oculus Life Coach | $14.99 | per month |
| Oculus Parenting Coach | $19.99 | per month |
| Heykin Parenting Coach | $19.99 | per month |


## Frequently asked questions

### Is Sezzy Timer free?

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

### Is HEYKIN free?

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

### Do Sezzy Timer or HEYKIN have ads?

Neither Sezzy Timer nor HEYKIN shows ads.

### Which is updated more often, Sezzy Timer or HEYKIN?

Sezzy Timer ships an update every 3 months, and HEYKIN every 3 months. Most recently, Sezzy Timer was updated on October 19, 2026 and HEYKIN on October 2, 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.*