# Stack Number vs CALC~blocks

Stack Number and CALC~blocks both sit at 4.0 stars, but that hides the real split: 100% of Stack Number's written reviews are positive against 65% of CALC~blocks's. CALC~blocks's advantage is update cadence (every 3 weeks vs every 24 months) and ratings volume (4 vs 1). 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.

On the App Store both sit at effectively the same score — 4.0 for Stack Number against 4.0 for CALC~blocks. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews are what separate them: 100% of Stack Number's written reviews are positive against 65% of CALC~blocks's.

Stack Number ships an update every 24 months, CALC~blocks every 3 weeks. The most recent releases landed on September 16, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Stack Number | CALC~blocks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/stack-number/id1048071754/reviews) | [4.0 (4 ratings)](https://appshunter.io/ios/app/calcblocks/id1229303760/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | **100.0% of reviews** | 65.4% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 24 months | **Every 3 weeks** |
| Monetization | Ad-supported | Ad-supported |
| Size | 17 MB | 31 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [亚州 王](https://appshunter.io/developer/991530214) | [QQ TSUBASA](https://appshunter.io/developer/568750169) |

## What reviewers say

### Stack Number

[App page](https://appshunter.io/ios/app/stack-number/id1048071754)

Tap to drop blocks and merge adjacent ones with the same value to create higher numbers. Aim for the highest score possible in this engaging puzzle game.

**Highlights:** Block dropping mechanic, Adjacent block merging, Number value progression, High score pursuit, Simple tap controls

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

**In-app purchases:** none


### CALC~blocks

[App page](https://appshunter.io/ios/app/calcblocks/id1229303760)

A block math puzzle game where you calculate math results to clear blocks, similar to Tetris. Aim for combos and higher scores by clearing blocks quickly and correctly. Enjoy different difficulty levels and play offline.

**Highlights:** Block math puzzle gameplay, Calculate math results to clear blocks, Combo shots for higher scores, Multiple difficulty levels, Offline play supported, Visual effects

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

**In-app purchases:** none


## Frequently asked questions

### Is Stack Number free?

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

### Is CALC~blocks free?

CALC~blocks is free to download, with no in-app purchases.

### Which has better reviews, Stack Number or CALC~blocks?

Stack Number and CALC~blocks are both rated 4.0 out of 5 on the App Store, from 1 and 4 ratings respectively.

### Do Stack Number or CALC~blocks have ads?

Both Stack Number and CALC~blocks show ads.

### Which is updated more often, Stack Number or CALC~blocks?

Stack Number ships an update every 24 months, and CALC~blocks every 3 weeks. Most recently, Stack Number was updated on September 16, 2026 and CALC~blocks on September 21, 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.*