# KiActiv Sync vs RunNerd

The clearest difference is update cadence: RunNerd at every 2 weeks against KiActiv Sync's every 9 months. KiActiv Sync's advantage is iOS requirement (9.0 vs 15.1). 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.

KiActiv Sync ships an update every 9 months, RunNerd every 2 weeks. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | KiActiv Sync | RunNerd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/runnerd-running-coach/id6760351554/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 70 MB | 76 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ki Performance Lifestyle Ltd](https://appshunter.io/developer/1105071460) | [Aaron Marr](https://appshunter.io/developer/1883544595) |

## What reviewers say

### KiActiv Sync

[App page](https://appshunter.io/ios/app/kiactiv-sync/id1588254661)

**Features:** macOS Compatibility

**In-app purchases:** none


### RunNerd

[App page](https://appshunter.io/ios/app/runnerd-running-coach/id6760351554)

This AI running coach provides personalized weekly training plans that adapt to your actual performance. Get hands-free audio analysis after each run and a coach that can answer your running-related questions. Integrates with various popular sports watches and Apple Health.

**Highlights:** Adaptive weekly training plans, Post-run audio coaching, Mile-by-mile performance splits, Race-aware planning, Conversational AI coach, Apple Health integration, Supports multiple sports watches

**In-app purchases:** none


## Frequently asked questions

### Is KiActiv Sync free?

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

### Is RunNerd free?

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

### Do KiActiv Sync or RunNerd have ads?

Neither KiActiv Sync nor RunNerd shows ads.

### Which is updated more often, KiActiv Sync or RunNerd?

KiActiv Sync ships an update every 9 months, and RunNerd every 2 weeks. Most recently, KiActiv Sync was updated on October 10, 2026 and RunNerd on October 6, 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.*