# Sunlighten vs RobertsPT

The clearest difference is review sentiment: RobertsPT at 100% against Sunlighten's 19%. RobertsPT also leads on rating (5.0 vs 2.8) and update cadence (every 2 months vs every 4 months). Sunlighten's advantage is ratings volume (77 vs 7). On price, ads, in-app purchases and monetization model there is nothing between them.

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

RobertsPT holds the better App Store score, 5.0 against 2.8. That said, the two scores are not equally well evidenced: Sunlighten has 77 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 19% of Sunlighten's written reviews are positive against 100% of RobertsPT's.

Sunlighten ships an update every 4 months, RobertsPT every 2 months. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Sunlighten | RobertsPT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (77 ratings)](https://appshunter.io/ios/app/sunlighten/id1634410434/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/robertspt/id6471609549/reviews)** |
| Number of ratings | **77** | 7 |
| Positive reviews | 19.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 53 MB | 181 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Sunlighten Inc](https://appshunter.io/developer/1634410436) | [RobertsPT Solutions, LLC](https://appshunter.io/developer/1715713988) |

## 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


### RobertsPT

[App page](https://appshunter.io/ios/app/robertspt/id6471609549)

This app provides personalized workout programs and tracks your progress, nutrition, and lifestyle habits with the guidance of a coach. It offers exercise videos, habit tracking, goal setting, and community support to help you achieve your fitness objectives.

**Highlights:** Personalized workout programs, Workout and exercise video tracking, Nutrition and habit tracking, Goal setting and progress monitoring, Real-time coach messaging, Digital community support, Wearable device integration

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Sunlighten free?

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

### Is RobertsPT free?

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

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

RobertsPT is rated higher. Sunlighten averages 2.8 out of 5 from 77 ratings, while RobertsPT averages 5.0 from 7 ratings.

### Do Sunlighten or RobertsPT have ads?

Neither Sunlighten nor RobertsPT shows ads.

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

Sunlighten ships an update every 4 months, and RobertsPT every 2 months. Most recently, Sunlighten was updated on October 15, 2026 and RobertsPT on October 8, 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.*