# KARCO vs Sailor Decoded

The clearest difference is in-app purchases: KARCO at none against Sailor Decoded's 10. KARCO also leads on update cadence (every 3 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Sailor Decoded sells 10 one-off in-app purchases. KARCO asks for nothing beyond the download.

KARCO ships an update every 3 days, Sailor Decoded every 2 months. The most recent releases landed on September 19, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | KARCO | Sailor Decoded |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 34 MB | 83 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Karishma Marine Soultions Private Limited](https://appshunter.io/developer/1749281191) | [Praneet Mehta](https://appshunter.io/developer/1824658163) |

## What reviewers say

### KARCO

[App page](https://appshunter.io/ios/app/karco/id6503446103)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sailor Decoded

[App page](https://appshunter.io/ios/app/sailor-decoded/id6773698002)

An educational platform for seafarers to deepen their maritime knowledge. It provides expert-led courses, video lectures, and practice tests to prepare users for exams and enhance their skills.

**Highlights:** Expert-led courses, Learning bundles, Video lectures, Practice tests, Exam preparation

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GP Rating Achiever | $19.99 | one-time |
| COLREG- A Complete Guide... | $24.99 | one-time |
| GP RATING EXCELLENCE PACKAGE | $29.99 | one-time |
| Deck Cadet Package | $59.99 | one-time |
| MEO CLASS 1 PACKAGE | $59.99 | one-time |
| B.Tech Marine Engineering Campus... | $59.99 | one-time |
| MEO CLASS 2 EXCELLENCE PACKAGE | $59.99 | one-time |
| ETO ASPIRANT EXCELLENCE PACKAGE | $59.99 | one-time |
| ETO COC EXCELLENCE PACKAGE | $59.99 | one-time |
| MEO CLASS 4 PACKAGE | $59.99 | one-time |


## Frequently asked questions

### Is KARCO free?

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

### Is Sailor Decoded free?

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

### Do KARCO or Sailor Decoded have ads?

Neither KARCO nor Sailor Decoded shows ads.

### Which is updated more often, KARCO or Sailor Decoded?

KARCO ships an update every 3 days, and Sailor Decoded every 2 months. Most recently, KARCO was updated on September 19, 2026 and Sailor Decoded on September 22, 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.*