# Sonar vs Private Diary Everyday

The clearest difference is in-app purchases: Sonar at none against Private Diary Everyday's 2. Sonar also leads on iOS requirement (8.2 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Private Diary Everyday sells 2 in-app purchases, starting at $9.99 per month. Sonar asks for nothing beyond the download.

Sonar ships an update every 6 months, Private Diary Everyday every 4 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Sonar | Private Diary Everyday |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (7 ratings)](https://appshunter.io/ios/app/sonar-emergency-button-sending-your-position-in-morse-code/id975894428/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 5 MB | 2 MB |
| Requires iOS | **8.2** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Konstantinos Vogiatzakis](https://appshunter.io/developer/818619540) | [Nhat Linh Dang](https://appshunter.io/developer/1857899120) |

## What reviewers say

### Sonar

[App page](https://appshunter.io/ios/app/sonar-emergency-button-sending-your-position-in-morse-code/id975894428)

This app sends your location via loud Morse code and ultrasonic alarms in emergencies. It can also help you find your devices by sound in everyday situations.

**Highlights:** Morse code distress signal, Ultrasonic alarm for K-9 units, Location broadcasting, Device finder by sound, Emergency alerts

**Features:** macOS Compatibility

**In-app purchases:** none


### Private Diary Everyday

[App page](https://appshunter.io/ios/app/private-diary-everyday/id6756542291)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Access | $9.99 | per month |
| Yearly Pro Access | $39.99 | per year |


## Frequently asked questions

### Is Sonar free?

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

### Is Private Diary Everyday free?

Private Diary Everyday is free to download, with in-app purchases available.

### Do Sonar or Private Diary Everyday have ads?

Neither Sonar nor Private Diary Everyday shows ads.

### Which is updated more often, Sonar or Private Diary Everyday?

Sonar ships an update every 6 months, and Private Diary Everyday every 4 months. Most recently, Sonar was updated on October 24, 2026 and Private Diary Everyday on October 24, 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.*