# CALC~blocks vs Math101 Sketchy

The clearest difference is price: CALC~blocks at Free against Math101 Sketchy's $0.99. CALC~blocks also leads on update cadence (every 3 weeks vs every 55 months) and iOS requirement (9.0 vs 13.0). Math101 Sketchy's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

CALC~blocks is free to download; Math101 Sketchy costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CALC~blocks ships an update every 3 weeks, Math101 Sketchy every 55 months. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | CALC~blocks | Math101 Sketchy |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/calcblocks/id1229303760/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 65.4% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 55 months |
| Monetization | Ad-supported | — |
| Size | 31 MB | 1 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [QQ TSUBASA](https://appshunter.io/developer/568750169) | [Emrah Korkmaz](https://appshunter.io/developer/1485564066) |

## What reviewers say

### 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


### Math101 Sketchy

[App page](https://appshunter.io/ios/app/math101-sketchy-math-exercise/id1574084933)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is CALC~blocks free?

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

### Is Math101 Sketchy free?

Math101 Sketchy costs $0.99, with no in-app purchases.

### Do CALC~blocks or Math101 Sketchy have ads?

CALC~blocks shows ads; Math101 Sketchy does not.

### Which is updated more often, CALC~blocks or Math101 Sketchy?

CALC~blocks ships an update every 3 weeks, and Math101 Sketchy every 55 months. Most recently, CALC~blocks was updated on October 13, 2026 and Math101 Sketchy 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.*