# Sunglow vs CelsiusFahrenheit

The clearest difference is price: Sunglow at Free against CelsiusFahrenheit's $0.99. Sunglow also leads on update cadence (every 5 days vs every 5 months) and ratings volume (268 vs 1). CelsiusFahrenheit's advantage is in-app purchases (none vs 11) and review sentiment (100% vs 76%). On ads, device support and iOS requirement there is nothing between them.

Sunglow is free to download; CelsiusFahrenheit costs $0.99 up front. Sunglow sells 11 in-app purchases, starting at $2.99 per 7 days. CelsiusFahrenheit asks for nothing beyond the download.

CelsiusFahrenheit holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Sunglow has 268 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 76% of Sunglow's written reviews are positive against 100% of CelsiusFahrenheit's.

Sunglow ships an update every 5 days, CelsiusFahrenheit every 5 months. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Sunglow | CelsiusFahrenheit |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.7 (268 ratings)](https://appshunter.io/ios/app/sunglow-tanning-rayz-tracker/id6746963241/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/celsiusfahrenheit/id6760893492/reviews)** |
| Number of ratings | **268** | 1 |
| Positive reviews | 76.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 5 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#86** |
| Size | 30 MB | 1 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Jalm Studio Inc](https://appshunter.io/developer/1882690243) | [John Miller](https://appshunter.io/developer/1802759696) |

## What reviewers say

### Sunglow

[App page](https://appshunter.io/ios/app/sunglow-tanning-rayz-tracker/id6746963241)

This app creates personalized tanning plans based on your skin type, location, and the UV index. It provides safe and effective guidance for achieving your desired tan, including session timers, SPF recommendations, and progress tracking.

**Highlights:** Personalized tanning routines, Smart session timers, Daily SPF recommendations, Tan progress tracker, Real-time UV index alerts, Custom reminders

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Week | $2.99 | per 7 days |
| 1 week | $4.99 | per 7 days |
| 1 week | $4.99 | per 7 days |
| Premium Week | $4.99 | per 7 days |
| Premium Month | $8.99 | per month |
| Premium Month | $8.99 | per month |
| 3 months | $19.99 | per 3 months |
| 3 months | $19.99 | per 3 months |
| 6 months | $24.99 | per 6 months |
| 1 year | $29.99 | per year |
| 1 year | $29.99 | per year |

**What reviewers like**

- 👍 Spot-on recommendations
- 👍 Weather-based suggestions
- 👍 Helps avoid tanning mishaps
- 👍 No more guesswork
- 🔒 Secure and trustworthy

**What reviewers complain about**

- 💰 Requires payment after free trial
- 🤔 Questionable value for just UV/tanning info

**Reported bugs**

- Unable to access app after free trial ended

**Requested features**

- Notifications for high UV levels


### CelsiusFahrenheit

[App page](https://appshunter.io/ios/app/celsiusfahrenheit/id6760893492)

**Currently charting:** #86 Top Paid · Weather (US App Store)

Understand unfamiliar temperature scales with a glance. This app displays local weather in both Celsius and Fahrenheit simultaneously on your Home Screen and Lock Screen, eliminating the need for manual conversion. It also provides a 5-day forecast in both units, with customizable widgets.

**Highlights:** Dual unit temperature display (Celsius & Fahrenheit), Home Screen and Lock Screen widgets, 5-day forecast in both units, Customizable widget units, Automatic location detection, Temperature conversion tool

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

**In-app purchases:** none


## Frequently asked questions

### Is Sunglow free?

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

### Is CelsiusFahrenheit free?

CelsiusFahrenheit costs $0.99, with no in-app purchases.

### Which has better reviews, Sunglow or CelsiusFahrenheit?

CelsiusFahrenheit is rated higher. Sunglow averages 4.7 out of 5 from 268 ratings, while CelsiusFahrenheit averages 5.0 from 1 ratings.

### Do Sunglow or CelsiusFahrenheit have ads?

Neither Sunglow nor CelsiusFahrenheit shows ads.

### Which is updated more often, Sunglow or CelsiusFahrenheit?

Sunglow ships an update every 5 days, and CelsiusFahrenheit every 5 months. Most recently, Sunglow was updated on October 30, 2026 and CelsiusFahrenheit on October 28, 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.*