# Sunsets Reminder vs Unitio

The clearest difference is in-app purchases: Sunsets Reminder at none against Unitio's 3. Sunsets Reminder also leads on ads (none vs shown). Unitio's advantage is device support (3 vs 1). On price, update cadence and iOS requirement there is nothing between them.

Both are free to download. Unitio sells 3 in-app purchases, starting at $1.99 per 7 days. Sunsets Reminder asks for nothing beyond the download.

Sunsets Reminder ships an update every 3 days, Unitio every 5 days. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sunsets Reminder | Unitio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (38 ratings)](https://appshunter.io/ios/app/sunsets-reminder/id6740467728/reviews)** | — |
| Number of ratings | **38** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 5 days |
| Monetization | Free | — |
| Size | 44 MB | 44 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nature Backs LLC](https://appshunter.io/developer/1792205379) | [Kin Man Leung](https://appshunter.io/developer/1716597027) |

## What reviewers say

### Sunsets Reminder

[App page](https://appshunter.io/ios/app/sunsets-reminder/id6740467728)

Receive timely alerts before sunset and sunrise, encouraging you to step outside and appreciate nature. Log your observations in a journal, track your streak, and see global sunset views from other users.

**Highlights:** Customizable sunset/sunrise alerts, In-app photo journaling, Sunset/sunrise streak tracking, Global sunset feed, Interactive world map of logged sunsets

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🌅 Captures beautiful sunsets
- 🌎 Connects people through shared photos
- ✨ Simple and aesthetically pleasing

**What reviewers complain about**

- 🐛 Sunrise feature not working properly
- 🔍 Difficult to browse past sunset photos

**Reported bugs**

- Sunrise feature not working as expected
- Issues with uploading and replacing sunrise photos

**Requested features**

- Add ability to connect with friends and see their sunset/sunrise photos
- Improve notification system to keep users engaged even when not uploading photos


### Unitio

[App page](https://appshunter.io/ios/app/unitio-unit-converter/id6759262265)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UnitioPro | $1.99 | per 7 days |
| UnitioPro | $3.99 | per month |
| UnitioPro | $24.99 | per year |


## Frequently asked questions

### Is Sunsets Reminder free?

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

### Is Unitio free?

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

### Do Sunsets Reminder or Unitio have ads?

Unitio shows ads; Sunsets Reminder does not.

### Which is updated more often, Sunsets Reminder or Unitio?

Sunsets Reminder ships an update every 3 days, and Unitio every 5 days. Most recently, Sunsets Reminder was updated on October 20, 2026 and Unitio 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.*