# JabClock vs SyncUp

The clearest difference is in-app purchases: JabClock at none against SyncUp's 4. JabClock also leads on update cadence (every 4 days vs every 3 weeks) and ratings volume (8 vs 2). SyncUp's advantage is ads (none vs shown). On price, rating and device support there is nothing between them.

Both are free to download. SyncUp sells 4 in-app purchases, starting at $3.99 per month. JabClock asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for JabClock against 5.0 for SyncUp. Both are backed by a comparable volume of ratings — 8 and 2 respectively.

JabClock ships an update every 4 days, SyncUp every 3 weeks. The most recent releases landed on October 4, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | JabClock | SyncUp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (8 ratings)](https://appshunter.io/ios/app/jabclock/id6760090836/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/syncup-partner-alarm-clock/id6760364103/reviews) |
| Number of ratings | **8** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | **Ad-supported** | Freemium |
| Size | 6 MB | 17 MB |
| Requires iOS | **18.6** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [David Luong](https://appshunter.io/developer/1882499983) | [Phillip Boscarino](https://appshunter.io/developer/1857188673) |

## What reviewers say

### JabClock

[App page](https://appshunter.io/ios/app/jabclock/id6760090836)

A highly configurable round timer designed for combat sports and interval training. Customize rounds, rest, and alerts for a focused workout. Features glove-friendly controls and offline functionality.

**Highlights:** Configurable rounds and rest periods, Multiple built-in training presets, Create and save custom presets, Variety of sound alerts, Adjustable volume and haptic feedback, Glove-friendly shake to pause, Offline functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### SyncUp

[App page](https://appshunter.io/ios/app/syncup-partner-alarm-clock/id6760364103)

This alarm clock helps heavy sleepers wake up on time by syncing with a partner, requiring challenge completion to dismiss, or implementing a paid snooze feature. Track your progress with streaks and stats, and customize sounds and challenges to fit your routine.

**Highlights:** Partner alarm synchronization, Wake-up challenges (math, physical), Optional paid snooze feature, Wake-up streaks and statistics, Customizable alarm sounds and challenges, Real-time wake-up status sharing

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SyncUp Pro Monthly | $3.99 | per month |
| SyncUp Pro Yearly | $24.99 | per year |
| Bypass Alarm | $0.99 | one-time |
| SyncUp Pro Lifetime | $44.99 | one-time |


## Frequently asked questions

### Is JabClock free?

JabClock is free to download, with no in-app purchases.

### Is SyncUp free?

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

### Which has better reviews, JabClock or SyncUp?

JabClock and SyncUp are both rated 5.0 out of 5 on the App Store, from 8 and 2 ratings respectively.

### Do JabClock or SyncUp have ads?

JabClock shows ads; SyncUp does not.

### Which is updated more often, JabClock or SyncUp?

JabClock ships an update every 4 days, and SyncUp every 3 weeks. Most recently, JabClock was updated on October 4, 2026 and SyncUp 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.*