# Sundown vs Tecnotics

The clearest difference is in-app purchases: Tecnotics at none against Sundown's 1. Tecnotics also leads on iOS requirement (15.1 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Sundown sells 1 one-off in-app purchase. Tecnotics asks for nothing beyond the download.

Sundown ships an update every 4 weeks, Tecnotics every 5 weeks. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Sundown | Tecnotics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (9 ratings)](https://appshunter.io/ios/app/sundown-sunrisesunset-alerts/id6711351809/reviews)** | — |
| Number of ratings | **9** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 32 MB | 36 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Recursive Ink Ltd](https://appshunter.io/developer/1770059606) | [TECNOTICS SAS](https://appshunter.io/developer/1886196462) |

## What reviewers say

### Sundown

[App page](https://appshunter.io/ios/app/sundown-sunrisesunset-alerts/id6711351809)

Plan your daily activities and events around natural daylight cycles. Set alarms and reminders linked to sunrise and sunset times, perfect for outdoor activities, photography, or daily routines. Get accurate solar timings for thousands of locations worldwide.

**Highlights:** Sunrise/sunset time alerts, Event scheduling linked to solar cycles, Customizable timeline, Future date planning, Data for 57,000+ locations, Offline functionality, Yearly summary charts

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sundown Gold | $5.99 | one-time |


### Tecnotics

[App page](https://appshunter.io/ios/app/tecnotics/id6760779098)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sundown free?

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

### Is Tecnotics free?

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

### Do Sundown or Tecnotics have ads?

Neither Sundown nor Tecnotics shows ads.

### Which is updated more often, Sundown or Tecnotics?

Sundown ships an update every 4 weeks, and Tecnotics every 5 weeks. Most recently, Sundown was updated on October 7, 2026 and Tecnotics on October 10, 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.*