# Flowly vs Uncross

The clearest difference is in-app purchases: Uncross at none against Flowly's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Flowly sells 2 in-app purchases, starting at $2.99 per month. Uncross asks for nothing beyond the download.

## The numbers

| Metric | Flowly | Uncross |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/uncross/id6762301585/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Monetization | Freemium | **Free** |
| Size | 13 MB | 1 MB |
| Requires iOS | **17** | 18.0 |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [HOOROO NETWORK PTE. LTD.](https://appshunter.io/developer/1861714013) | [Jae Hyun Song](https://appshunter.io/developer/1891826528) |

## What reviewers say

### Flowly

[App page](https://appshunter.io/ios/app/flowly-cycle-and-period-tracker/id6761820293)

This app tracks your menstrual cycle, integrating biometric data like HRV and sleep from your Apple Watch to predict cognitive peaks, energy windows, and recovery needs. It offers personalized daily recommendations for work, nutrition, and movement based on your cycle phase.

**Highlights:** Predicts periods and cognitive peaks, Integrates Apple Watch HRV and sleep data, Personalized daily action recommendations, Tracks symptoms, mood, and energy, 5-dimension cognitive performance forecast, Privacy-focused local data storage

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro · Monthly | $2.99 | per month |
| Pro · Annual | $17.99 | per year |


### Uncross

[App page](https://appshunter.io/ios/app/uncross/id6762301585)

This app helps you break the habit of crossing your legs, a common cause of poor posture. It uses your Apple Watch to monitor movement and send gentle reminders, allowing you to track your progress and build better sitting habits over time.

**Highlights:** Apple Watch motion detection, Gentle, randomized reminders, Daily sitting habit dashboard, Streak tracking for motivation, Weekly and monthly progress charts, Customizable quiet hours, Watch face complication for streak visibility, Data export to CSV

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Flowly free?

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

### Is Uncross free?

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

### Do Flowly or Uncross have ads?

Neither Flowly nor Uncross shows ads.

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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.*