# Sunlighten vs sol

The clearest difference is rating: sol at 5.0 against Sunlighten's 2.7. sol also leads on update cadence (every 2 days vs every 4 months). Sunlighten's advantage is in-app purchases (none vs 2) and ratings volume (85 vs 3). On price and ads there is nothing between them.

Both are free to download. sol sells 2 in-app purchases, starting at $3.99 per month. Sunlighten asks for nothing beyond the download.

sol holds the better App Store score, 5.0 against 2.7. That said, the two scores are not equally well evidenced: Sunlighten has 85 ratings behind it against 3, so its average is the more settled of the two.

Sunlighten ships an update every 4 months, sol every 2 days. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Sunlighten | sol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (85 ratings)](https://appshunter.io/ios/app/sunlighten/id1634410434/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/sol-dreams/id6760870952/reviews)** |
| Number of ratings | **85** | 3 |
| Positive reviews | 19.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | **Free** | Freemium |
| Size | 53 MB | 14 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Sunlighten Inc](https://appshunter.io/developer/1634410436) | [Zachary Hogan](https://appshunter.io/developer/1886553260) |

## What reviewers say

### Sunlighten

[App page](https://appshunter.io/ios/app/sunlighten/id1634410434)

Optimize your well-being with this app, designed to enhance your light therapy and sauna experiences. Create personalized wellness programs, track sessions in real-time, and control your devices remotely for a seamless health journey.

**Highlights:** Science-based wellness programs, Personalized program creation, Real-time session tracking, Remote sauna control (Wi-Fi), Audio and lighting management, Red light therapy panel programs

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Convenient remote control
- 👍 Customizable programs
- 🚀 Easy to use app
- 👍 Enhances sauna experience

**What reviewers complain about**

- 🐛 Unreliable app connectivity
- 🔒 Privacy concerns with data collection
- 🐛 Inconsistent scheduling and remote start
- 🐛 Buggy and glitchy app
- 👎 Limited remote functionality

**Reported bugs**

- App fails to connect to sauna
- Scheduled programs not running as expected
- Inconsistent lighting controls
- Tablet frequently restarts or loses connection

**Requested features**

- Remote start and preheat capability
- Improved app stability and reliability
- Better integration between app and sauna
- More customization options


### sol

[App page](https://appshunter.io/ios/app/sol-dreams/id6760870952)

This app uses AI to map your emotions to solfeggio frequencies and pair them with personalized sleep playlists. Track your emotional history and receive tailored frequency readings that evolve over time. Enjoy curated Spotify playlists designed to enhance your sleep experience.

**Highlights:** Emotional word check-ins, AI-powered frequency readings, Curated Spotify sleep playlists, Progressive reading history, Premium daily check-ins, Partner mode

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $3.99 | per month |
| Yearly Premium | $29.99 | per year |


## Frequently asked questions

### Is Sunlighten free?

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

### Is sol free?

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

### Which has better reviews, Sunlighten or sol?

sol is rated higher. Sunlighten averages 2.7 out of 5 from 85 ratings, while sol averages 5.0 from 3 ratings.

### Do Sunlighten or sol have ads?

Neither Sunlighten nor sol shows ads.

### Which is updated more often, Sunlighten or sol?

Sunlighten ships an update every 4 months, and sol every 2 days. Most recently, Sunlighten was updated on October 23, 2026 and sol on October 15, 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.*