# Block Stack Challenge vs Sea Jam

The clearest difference is update cadence: Sea Jam at every 3 days against Block Stack Challenge's every 11 months. Sea Jam also leads on ratings volume (739 vs 1). Block Stack Challenge's advantage is iOS requirement (13.0 vs 15.2). On price, rating, ads and in-app purchases there is nothing between them.

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

Block Stack Challenge holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Sea Jam has 739 ratings behind it against 1, so its average is the more settled of the two.

Block Stack Challenge ships an update every 11 months, Sea Jam every 3 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Block Stack Challenge | Sea Jam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/block-stack-challenge/id6754543841/reviews)** | [4.8 (739 ratings)](https://appshunter.io/ios/app/sea-jam-boat-escape/id6804949825/reviews) |
| Number of ratings | 1 | **739** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 11 months | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 335 MB | 310 MB |
| Requires iOS | **13.0** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 9+ |
| Developer | [文涛 刘](https://appshunter.io/developer/1460220959) | [Skyfun Games](https://appshunter.io/developer/1746869574) |

## What reviewers say

### Block Stack Challenge

[App page](https://appshunter.io/ios/app/block-stack-challenge/id6754543841)

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

**In-app purchases:** none


### Sea Jam

[App page](https://appshunter.io/ios/app/sea-jam-boat-escape/id6804949825)

Navigate a crowded sea by strategically moving boats and ships to clear paths. Solve intricate puzzles, help marine animals, and test your planning skills across hundreds of levels.

**Highlights:** Untangle crowded boat traffic, Solve clever escape puzzles, Navigate ships through tight spaces, Help sea animals, Hundreds of handcrafted levels, Test logic and planning skills

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

**In-app purchases:** none


## Frequently asked questions

### Is Block Stack Challenge free?

Block Stack Challenge is free to download, with no in-app purchases.

### Is Sea Jam free?

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

### Which has better reviews, Block Stack Challenge or Sea Jam?

Block Stack Challenge is rated higher. Block Stack Challenge averages 5.0 out of 5 from 1 ratings, while Sea Jam averages 4.8 from 739 ratings.

### Do Block Stack Challenge or Sea Jam have ads?

Both Block Stack Challenge and Sea Jam show ads.

### Which is updated more often, Block Stack Challenge or Sea Jam?

Block Stack Challenge ships an update every 11 months, and Sea Jam every 3 days. Most recently, Block Stack Challenge was updated on October 24, 2026 and Sea Jam 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.*