# Fitdays vs RunStar

The clearest difference is device support: Fitdays at 4 against RunStar's 2. RunStar's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Fitdays ships an update every 3 weeks, RunStar monthly. The most recent releases landed on November 6, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Fitdays | RunStar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (1.8K ratings)](https://appshunter.io/ios/app/fitdays/id1434527961/reviews)** | — |
| Number of ratings | **1.8K** | — |
| Positive reviews | 28.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | — |
| Size | 153 MB | 239 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [GUANGDONG ICOMON TECHNOLOGY CO., LTD](https://appshunter.io/developer/1359710025) | [RUNSTAR FL INC.](https://appshunter.io/developer/1761559273) |

## What reviewers say

### Fitdays

[App page](https://appshunter.io/ios/app/fitdays/id1434527961)

Record and track family weight data with a smart scale. Visualize progress with charts and reports, and sync with Apple Health. Supports up to 24 users for comprehensive family fitness monitoring.

**Highlights:** Record family weight data, Connect to smart weight scale, Chart and report display, Apple Health synchronization, Support for up to 24 users, Body measurement tracking

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 📊 Provides detailed body metrics
- 🔗 Syncs with Apple Health
- 💻 Works well with scale

**What reviewers complain about**

- 🐛 Connectivity issues with Bluetooth
- 📉 Inaccurate body composition measurements
- 🔍 Confusing data presentation
- 🔒 Privacy concerns
- 💤 Drains battery

**Reported bugs**

- App crashes on login
- Fails to sync data consistently
- Incorrect weight/BMI calculations
- Calendar view not functioning properly

**Requested features**

- Add ability to manually edit/delete entries
- Improve data visualization and charting
- Implement pregnancy mode
- Allow multiple user profiles with privacy


### RunStar

[App page](https://appshunter.io/ios/app/runstar/id6758985225)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fitdays free?

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

### Is RunStar free?

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

### Do Fitdays or RunStar have ads?

Neither Fitdays nor RunStar shows ads.

### Which is updated more often, Fitdays or RunStar?

Fitdays ships an update every 3 weeks, and RunStar monthly. Most recently, Fitdays was updated on November 6, 2026 and RunStar on November 9, 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.*