# MarcoPolo Ocean vs Code Karts

The clearest difference is rating: MarcoPolo Ocean at 4.5 against Code Karts's 3.8. MarcoPolo Ocean also leads on in-app purchases (none vs 1) and review sentiment (74% vs 61%). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Code Karts sells 1 one-off in-app purchase. MarcoPolo Ocean asks for nothing beyond the download.

MarcoPolo Ocean holds the better App Store score, 4.5 against 3.8. Both are backed by a comparable volume of ratings — 254 and 147 respectively. Written reviews point the same way: 74% of MarcoPolo Ocean's written reviews are positive against 61% of Code Karts's.

MarcoPolo Ocean ships an update every 2 months, Code Karts every 4 months. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | MarcoPolo Ocean | Code Karts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (254 ratings)](https://appshunter.io/ios/app/marcopolo-ocean/id797157312/reviews)** | [3.8 (147 ratings)](https://appshunter.io/ios/app/code-karts-pre-coding-logic/id1222704761/reviews) |
| Number of ratings | **254** | 147 |
| Positive reviews | **74.3% of reviews** | 61.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 407 MB | 260 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MarcoPolo Learning, Inc.](https://appshunter.io/developer/797157315) | [EDOKI ACADEMY](https://appshunter.io/developer/555989645) |

## What reviewers say

### MarcoPolo Ocean

[App page](https://appshunter.io/ios/app/marcopolo-ocean/id797157312)

Explore and build underwater worlds with this "digital sandbox" for kids. Discover marine life, construct submarines, and learn about ocean ecosystems through interactive play. Encourages self-directed learning in science and technology.

**Highlights:** Build coral reefs and aquariums, Explore the deep sea, Steer submarines and boats, Interact with 32+ marine species, Learn ocean vocabulary and concepts, Self-directed STEM learning

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Fun and educational
- 🌟 Beautiful graphics and animations
- 🧠 Teaches kids about ocean life
- 🕹️ Engaging interactive features
- 🤗 Great for toddlers and young kids

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 💾 Large file size
- 🔇 Sound problems
- 🤖 Lack of advanced features

**Reported bugs**

- Crashes on launch or during gameplay
- Freezing and unresponsive issues
- Compatibility problems on older devices

**Requested features**

- Add more sea creatures and ocean environments
- Introduce more puzzles and activities
- Allow customization of the ocean scene
- Expand to include conservation and environmental themes


### Code Karts

[App page](https://appshunter.io/ios/app/code-karts-pre-coding-logic/id1222704761)

This app introduces children aged 4 and up to pre-coding concepts through engaging logic puzzles presented as a raceway. It teaches fundamental coding principles and problem-solving skills through interactive gameplay, including counting in binary.

**Highlights:** Pre-coding logic puzzles, Learn to count in binary, Develop sequencing and problem-solving, Over 70 levels, Two game modes, Intuitive UI for young children

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Game Unlock | $2.99 | one-time |

**What reviewers like**

- 👍 Great introduction to coding
- 👍 Fun and engaging for kids
- 👍 Good for logic and sequencing
- 👍 Quick customer support
- 👍 No ads

**What reviewers complain about**

- 👎 Requires purchase to continue
- 👎 Purchase not restoring
- 👎 Issues with family sharing
- 👎 Tedious arrow interaction
- 👎 Broken bonus level

**Reported bugs**

- Cannot restore purchases
- Purchased content not unlocking on new devices
- Family sharing not working for purchases
- Bonus level is unplayable/unexitable
- Back button not working in bonus level

**Requested features**

- Extend free trial
- Improve arrow interaction
- Add more levels
- Add option to reset progress
- Improve Turkish dubbing accuracy


## Frequently asked questions

### Is MarcoPolo Ocean free?

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

### Is Code Karts free?

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

### Which has better reviews, MarcoPolo Ocean or Code Karts?

MarcoPolo Ocean is rated higher. MarcoPolo Ocean averages 4.5 out of 5 from 254 ratings, while Code Karts averages 3.8 from 147 ratings.

### Do MarcoPolo Ocean or Code Karts have ads?

Neither MarcoPolo Ocean nor Code Karts shows ads.

### Which is updated more often, MarcoPolo Ocean or Code Karts?

MarcoPolo Ocean ships an update every 2 months, and Code Karts every 4 months. Most recently, MarcoPolo Ocean was updated on October 6, 2026 and Code Karts on October 8, 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.*