# Somno vs SunAlly

The clearest difference is rating: Somno at 4.6 against SunAlly's 3.5. Somno also leads on review sentiment (94% vs 60%). SunAlly's advantage is monetization model (freemium vs subscription) and update cadence (weekly vs fortnightly). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Somno sells 6 in-app purchases, starting at $3.99 per month 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.

Somno holds the better App Store score, 4.6 against 3.5. Both are backed by a comparable volume of ratings — 27 and 11 respectively. Written reviews point the same way: 94% of Somno's written reviews are positive against 60% of SunAlly's.

Somno ships an update fortnightly, SunAlly weekly. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Somno | SunAlly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (27 ratings)](https://appshunter.io/ios/app/somno-ai-sleep-tracker/id6504674988/reviews)** | [3.5 (11 ratings)](https://appshunter.io/ios/app/sunally/id6740318671/reviews) |
| Number of ratings | **27** | 11 |
| Positive reviews | **93.8% of reviews** | 60.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Subscription | **Freemium** |
| Size | 50 MB | 58 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Remix Design Studio](https://appshunter.io/developer/1708137028) | [Hangzhou Freedom Note Artificial Intelligence Technology Co., Ltd](https://appshunter.io/developer/1705653748) |

## What reviewers say

### Somno

[App page](https://appshunter.io/ios/app/somno-ai-sleep-tracker/id6504674988)

This app monitors your sleep using AI and smart wearables, providing detailed analysis and science-based improvement plans. It features a smart alarm, nap tracking, and app locking to enhance sleep hygiene. Visualize your sleep patterns and understand how daily habits impact your rest.

**Highlights:** AI sleep analysis and improvement plans, Smart wake-up alarm during light sleep, Accurate nap tracking, App lock for bedtime discipline, Sleep heatmap calendar, Sleep energy score, Automatic sleep tracking with wearables

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Somno Pro Monthly | $3.99 | per month |
| Somno Pro Yearly | $17.99 | per year |
| Somno Pro Yearly | $29.99 | per year |
| Somno Pro Lifetime(Early Bird) | $29.99 | one-time |
| Somno Pro Lifetime(Angel User) | $29.99 | one-time |
| Somno Pro Lifetime | $59.99 | 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 Somno free?

Somno 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, Somno or SunAlly?

Somno is rated higher. Somno averages 4.6 out of 5 from 27 ratings, while SunAlly averages 3.5 from 11 ratings.

### Do Somno or SunAlly have ads?

Neither Somno nor SunAlly shows ads.

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

Somno ships an update fortnightly, and SunAlly weekly. Most recently, Somno was updated on November 8, 2026 and SunAlly on October 30, 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.*