# NU vs K

NU and K both sit at 5.0 stars, but that hides the real split: 29% of NU's written reviews are positive against 0% of K's. K's advantage is update cadence (every 5 days vs fortnightly). On rating, ratings volume, ads and in-app purchases there is nothing between them.

On the App Store both sit at effectively the same score — 5.0 for NU against 5.0 for K. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 29% of NU's written reviews are positive against 0% of K's.

NU ships an update fortnightly, K every 5 days. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | NU | K |
| --- | --- | --- |
| Price | **Free** | — |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/nurun/id6742480231/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/k-run/id6756259646/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | **28.6% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Free | Free |
| Size | 111 MB | 64 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [VC Inc.](https://appshunter.io/developer/1443688630) | [Korea Association of Athletics Federations](https://appshunter.io/developer/1719676238) |

## What reviewers say

### NU

[App page](https://appshunter.io/ios/app/nurun/id6742480231)

This app is a smart running tracker that records and analyzes your daily runs. It helps you build a running habit by visualizing workout data, tracking routes, and providing health indicators.

**Highlights:** Workout Dashboard, Real-time workout data, GPS-based route tracking, Workout History visualization, Daily, weekly, monthly statistics, Health indicators

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

**In-app purchases:** none


### K

[App page](https://appshunter.io/ios/app/k-run/id6756259646)

This official running platform offers diverse activities for all runners, from casual joggers to marathoners. Discover city and park courses, track your runs with GPS, join challenges, connect with running crews, and find race and class information.

**Highlights:** Official running courses, GPS-based run tracking, Race and marathon information, Personal and group challenges, Running crew community, Running class information

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

**In-app purchases:** none


## Frequently asked questions

### Is NU free?

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

### Is K free?

Pricing for K is not currently listed on the App Store.

### Which has better reviews, NU or K?

NU and K are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do NU or K have ads?

Neither NU nor K shows ads.

### Which is updated more often, NU or K?

NU ships an update fortnightly, and K every 5 days. Most recently, NU was updated on October 21, 2026 and K on October 24, 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.*