# Twilight Time vs SOS Morse Flash

The clearest difference is ads: SOS Morse Flash at none against Twilight Time's shown. SOS Morse Flash also leads on update cadence (daily vs every 2 weeks). Twilight Time's advantage is iOS requirement (16.7.10 vs 18.5). On price, in-app purchases and device support there is nothing between them.

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

Twilight Time ships an update every 2 weeks, SOS Morse Flash daily. The most recent releases landed on September 23, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Twilight Time | SOS Morse Flash |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Daily** |
| Size | 36 MB | 5 MB |
| Requires iOS | **16.7.10** | 18.5 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Thomas Aurange](https://appshunter.io/developer/1783985081) |

## What reviewers say

### Twilight Time

[App page](https://appshunter.io/ios/app/twilight-time/id6503278537)

**Features:** macOS Compatibility

**In-app purchases:** none


### SOS Morse Flash

[App page](https://appshunter.io/ios/app/sos-morse-flash/id6748650782)

**In-app purchases:** none


## Frequently asked questions

### Is Twilight Time free?

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

### Is SOS Morse Flash free?

SOS Morse Flash is free to download, with no in-app purchases.

### Do Twilight Time or SOS Morse Flash have ads?

Twilight Time shows ads; SOS Morse Flash does not.

### Which is updated more often, Twilight Time or SOS Morse Flash?

Twilight Time ships an update every 2 weeks, and SOS Morse Flash daily. Most recently, Twilight Time was updated on September 23, 2026 and SOS Morse Flash on September 7, 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.*