# Blockflow vs Stack Em! Cosmic Blocks

The clearest difference is in-app purchases: Stack Em! Cosmic Blocks at none against Blockflow's 4. Stack Em! Cosmic Blocks also leads on ads (none vs shown). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Blockflow sells 4 in-app purchases, starting at $2.99 per month. Stack Em! Cosmic Blocks asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Blockflow against 5.0 for Stack Em! Cosmic Blocks. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Blockflow ships an update weekly, Stack Em! Cosmic Blocks every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Blockflow | Stack Em! Cosmic Blocks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/blockflow-block-puzzle/id6758454256/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/stack-em-cosmic-blocks/id6774973758/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 10 MB | 31 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Monarch Legacy](https://appshunter.io/developer/1847767798) | [JMM Technologies](https://appshunter.io/developer/6774973760) |

## What reviewers say

### Blockflow

[App page](https://appshunter.io/ios/app/blockflow-block-puzzle/id6758454256)

Engage in a classic block puzzle game with a twist: compete for real cash prizes weekly. Master 24 unique shapes across 96 adventure levels with no pay-to-win mechanics. Choose from free play, ad-free, or pro versions with premium themes and features.

**Highlights:** Weekly $25 cash prize, Classic 8x8 block puzzle gameplay, 96 adventure levels, Global leaderboard competition, Multiple themes available, No pay-to-win mechanics

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Annual | $19.99 | per year |
| Keep Ad-Free | $4.99 | one-time |
| Ad-Free Forever | $9.99 | one-time |


### Stack Em! Cosmic Blocks

[App page](https://appshunter.io/ios/app/stack-em-cosmic-blocks/id6774973758)

A relaxing block puzzle game designed for short play sessions. Drag and drop pieces to complete rows and columns, clear space, and aim for high scores. Enjoy satisfying visual and audio feedback with multiple themes.

**Highlights:** Ad-free gameplay, Fast offline play, No account required, Smooth drag-and-drop controls, Satisfying clears and combos, Multiple unlockable themes

**In-app purchases:** none


## Frequently asked questions

### Is Blockflow free?

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

### Is Stack Em! Cosmic Blocks free?

Stack Em! Cosmic Blocks is free to download, with no in-app purchases.

### Which has better reviews, Blockflow or Stack Em! Cosmic Blocks?

Blockflow and Stack Em! Cosmic Blocks are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Blockflow or Stack Em! Cosmic Blocks have ads?

Blockflow shows ads; Stack Em! Cosmic Blocks does not.

### Which is updated more often, Blockflow or Stack Em! Cosmic Blocks?

Blockflow ships an update weekly, and Stack Em! Cosmic Blocks every 3 days. Most recently, Blockflow was updated on October 31, 2026 and Stack Em! Cosmic Blocks on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*