# K running vs Hairo

The clearest difference is in-app purchases: K running at none against Hairo's 2. K running also leads on iOS requirement (13.0 vs 15.5). Hairo's advantage is review sentiment (100% vs 75%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Hairo sells 2 in-app purchases, starting at $14.99 per month. K running asks for nothing beyond the download.

K running ships an update every 9 days, Hairo every 10 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | K running | Hairo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/k-running-walk-notification/id1539391383/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 10 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 8 MB | 160 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [masahisa yamada](https://appshunter.io/developer/1594001872) | [HairoLabs](https://appshunter.io/developer/1656626124) |

## What reviewers say

### K running

[App page](https://appshunter.io/ios/app/k-running-walk-notification/id1539391383)

Track your runs and walks with detailed metrics like time, distance, pace, and steps. Capture photos during your activity and receive push notifications for key milestones. Review your history and visualize your routes on a map.

**Highlights:** Time, distance, pace, and step tracking, GPS route mapping, In-activity photo capture, Push notifications for milestones, Detailed history of records, Simple and comfortable design

**Features:** macOS Compatibility

**In-app purchases:** none


### Hairo

[App page](https://appshunter.io/ios/app/hairo/id6446069241)

This app helps users combat hair loss and thinning. It offers tools to track hair growth, receive personalized advice, and learn about hair care treatments. Users can monitor progress and set goals for healthier, fuller hair.

**Highlights:** Hair growth tracking, Personalized recommendations, Educational articles, Scalp photo taking, Goal setting

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hairo Premium Monthly | $14.99 | per month |
| Hairo Premium Annual | $99.99 | per year |


## Frequently asked questions

### Is K running free?

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

### Is Hairo free?

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

### Do K running or Hairo have ads?

Neither K running nor Hairo shows ads.

### Which is updated more often, K running or Hairo?

K running ships an update every 9 days, and Hairo every 10 days. Most recently, K running was updated on October 24, 2026 and Hairo 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.*