# Sunny Buddy vs SunSync

The clearest difference is review sentiment: Sunny Buddy at 100% against SunSync's 50%. Sunny Buddy also leads on rating (5.0 vs 4.5) and in-app purchases (none vs 2). SunSync's advantage is update cadence (fortnightly vs every 13 months) and ratings volume (4 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. SunSync sells 2 in-app purchases, starting at $1.99 per month. Sunny Buddy asks for nothing beyond the download.

Sunny Buddy holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 100% of Sunny Buddy's written reviews are positive against 50% of SunSync's.

Sunny Buddy ships an update every 13 months, SunSync fortnightly. The most recent releases landed on October 6, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sunny Buddy | SunSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sunny-buddy/id6701995916/reviews)** | [4.5 (4 ratings)](https://appshunter.io/ios/app/sunsync-sunscreen-reminder/id6779470861/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Fortnightly** |
| Monetization | **Free** | Freemium |
| Size | 82 MB | 30 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 12+ | 12+ |
| Developer | [Xin Ran Wang](https://appshunter.io/developer/1769510214) | [Samuel Araya](https://appshunter.io/developer/1891843842) |

## What reviewers say

### Sunny Buddy

[App page](https://appshunter.io/ios/app/sunny-buddy/id6701995916)

This app provides personalized sun safety guidance with real-time UV index tracking and sunscreen reapplication reminders. It offers recommendations and quizzes to help users find the right sun protection and assess their melanoma risk.

**Highlights:** Real-Time UV Index Tracker, Sunscreen Reapplication Reminders, Personalized Sunscreen Recommendations, Interactive Sunscreen Quiz, Melanoma Screening Quiz, Sunscreen Dispenser Map (Canada Only)

**Features:** macOS Compatibility

**In-app purchases:** none


### SunSync

[App page](https://appshunter.io/ios/app/sunsync-sunscreen-reminder/id6779470861)

This app helps you stay safe in the sun by providing local UV index information, smart sunscreen reapplication timers, and gentle reminders. It personalizes your sun protection based on your skin type and activity, turning sun safety into a simple daily ritual.

**Highlights:** Local UV index readings, Smart sunscreen reapply timer, Personalized sun protection, Gentle reapply reminders, UV alerts with quiet hours, Home/Lock Screen UV widget

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SunSync Plus Monthly | $1.99 | per month |
| SunSync Plus Yearly | $14.99 | per year |


## Frequently asked questions

### Is Sunny Buddy free?

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

### Is SunSync free?

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

### Which has better reviews, Sunny Buddy or SunSync?

Sunny Buddy is rated higher. Sunny Buddy averages 5.0 out of 5 from 1 ratings, while SunSync averages 4.5 from 4 ratings.

### Do Sunny Buddy or SunSync have ads?

Neither Sunny Buddy nor SunSync shows ads.

### Which is updated more often, Sunny Buddy or SunSync?

Sunny Buddy ships an update every 13 months, and SunSync fortnightly. Most recently, Sunny Buddy was updated on October 6, 2026 and SunSync on October 25, 2026.

---

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