# STEX Sync vs 런잇 RUNIT

The clearest difference is update cadence: 런잇 RUNIT at every 3 days against STEX Sync's every 4 months. STEX Sync's advantage is iOS requirement (12.0 vs 15.5). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

STEX Sync ships an update every 4 months, 런잇 RUNIT every 3 days. The most recent releases landed on September 11, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | STEX Sync | 런잇 RUNIT |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 55.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | — | Free |
| Size | 18 MB | 201 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Taeha Mechatronics Co., Ltd.](https://appshunter.io/developer/1664269532) | [Runit Co., Ltd](https://appshunter.io/developer/6777969344) |

## What reviewers say

### STEX Sync

[App page](https://appshunter.io/ios/app/stex-sync/id1664269530)

**Features:** macOS Compatibility

**In-app purchases:** none


### 런잇 RUNIT

[App page](https://appshunter.io/ios/app/runit/id6777969342)

Discover, register for, and manage your running race results all in one place. Track your personal bests, compare your performance with others, and stay updated on upcoming events. Prepare for your next race with this comprehensive running companion.

**Highlights:** Find and register for running races, Track personal race records, View race rankings and compare with others, Stay updated on upcoming race schedules, Manage all running event participation

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

**In-app purchases:** none


## Frequently asked questions

### Is STEX Sync free?

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

### Is 런잇 RUNIT free?

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

### Do STEX Sync or 런잇 RUNIT have ads?

Neither STEX Sync nor 런잇 RUNIT shows ads.

### Which is updated more often, STEX Sync or 런잇 RUNIT?

STEX Sync ships an update every 4 months, and 런잇 RUNIT every 3 days. Most recently, STEX Sync was updated on September 11, 2026 and 런잇 RUNIT on September 25, 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.*