# Soranji vs CBDR

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

Both are free to download. Soranji sells 3 in-app purchases, starting at $5.99 per month. CBDR asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on October 25, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Soranji | CBDR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/cbdr/id6792199258/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | Every 5 days |
| Monetization | — | Free |
| Size | 61 MB | 77 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [atsuko imai](https://appshunter.io/developer/1830783417) | [Sean Bowman](https://appshunter.io/developer/6792199260) |

## What reviewers say

### Soranji

[App page](https://appshunter.io/ios/app/soranji-memory-flashcards/id6787637947)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Soranji Plus Monthly | $5.99 | per month |
| Soranji Plus Annual | $29.99 | per year |
| Soranji Plus Lifetime | $64.99 | one-time |


### CBDR

[App page](https://appshunter.io/ios/app/cbdr/id6792199258)

This app trains junior deck officers and watchstanders in essential radar watch skills, including contact evaluation, COLREGS classification, and generating contact reports. It features a live radar scope, generated scenarios for various navigation situations, and drills for recognition and maneuvering.

**Highlights:** Live radar scope with vectors and trails, Generated navigation scenarios, COLREGS classification, Contact report scoring, Maneuvering board drills, Recognition drills, USCG Rules of the Road test bank, Offline group testing

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

**In-app purchases:** none


## Frequently asked questions

### Is Soranji free?

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

### Is CBDR free?

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

### Do Soranji or CBDR have ads?

Soranji shows ads; CBDR does not.

### Which is updated more often, Soranji or CBDR?

Soranji ships an update every 5 days, and CBDR every 5 days. Most recently, Soranji was updated on October 25, 2026 and CBDR on October 5, 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.*