# FeelFlow vs SunAlly

The clearest difference is ratings volume: FeelFlow at 12K against SunAlly's 9. FeelFlow also leads on rating (4.7 vs 4.3) and device support (4 vs 2). SunAlly's advantage is update cadence (weekly vs fortnightly) and review sentiment (60% vs 50%). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. FeelFlow sells 5 in-app purchases, starting at $9.99 per year and SunAlly sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

FeelFlow holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: FeelFlow has 12K ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 50% of FeelFlow's written reviews are positive against 60% of SunAlly's, so the app with the better star average is not the one people write more warmly about.

FeelFlow ships an update fortnightly, SunAlly weekly. The most recent releases landed on October 17, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | FeelFlow | SunAlly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (12K ratings)](https://appshunter.io/ios/app/feelflow-hrv/id6472018103/reviews)** | [4.3 (9 ratings)](https://appshunter.io/ios/app/sunally/id6740318671/reviews) |
| Number of ratings | **12K** | 9 |
| Positive reviews | 50.0% of reviews | **60.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Freemium | Freemium |
| Size | 307 MB | 58 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [重庆雾梨兔科技有限公司](https://appshunter.io/developer/1716475424) | [Hangzhou Freedom Note Artificial Intelligence Technology Co., Ltd](https://appshunter.io/developer/1705653748) |

## What reviewers say

### FeelFlow

[App page](https://appshunter.io/ios/app/feelflow-hrv/id6472018103)

This app analyzes your HRV, mood, activity, and sleep data to provide insights into your emotional and stress states. It offers strategies for emotional balance and helps you track changes in your well-being. Record every emotional moment to better understand yourself.

**Highlights:** HRV and resting heart rate monitoring, Real-time stress detection, Mood tracking and analytics, Sleep quality analysis, Personalized stress management strategies, Apple Watch faces and widgets

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包年会员 | $9.99 | per year |
| Annual  Membership (3-Day Trial) | $24.99 | per year |
| 月卡会员 | $2.99 | one-time |
| Pro Lifetime Membership | $14.99 | one-time |
| 高级永久会员 | $29.99 | one-time |


### SunAlly

[App page](https://appshunter.io/ios/app/sunally/id6740318671)

This app helps you optimize your time outdoors for health benefits like vitamin D synthesis and improved well-being. It provides personalized recommendations, real-time UV monitoring, and smart reminders for safe and beneficial sun exposure.

**Highlights:** Optimal outdoor activity time recommendations, Real-time UV level monitoring, Smart UV risk prevention reminders, Vitamin D synthesis estimation, Personalized health recommendations, Apple Health integration, HRV stress monitoring

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium SunAlly HRV Monthly | $4.99 | per month |
| Premium SunAlly HRV Yearly | $19.99 | per year |
| Premium SunAlly HRV Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is FeelFlow free?

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

### Is SunAlly free?

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

### Which has better reviews, FeelFlow or SunAlly?

FeelFlow is rated higher. FeelFlow averages 4.7 out of 5 from 12K ratings, while SunAlly averages 4.3 from 9 ratings.

### Do FeelFlow or SunAlly have ads?

Neither FeelFlow nor SunAlly shows ads.

### Which is updated more often, FeelFlow or SunAlly?

FeelFlow ships an update fortnightly, and SunAlly weekly. Most recently, FeelFlow was updated on October 17, 2026 and SunAlly on September 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*