# Multi Puzzle Solver vs Standard Deviation

The clearest difference is price: Standard Deviation at Free against Multi Puzzle Solver's $2.99. Standard Deviation also leads on update cadence (every 2 months vs every 22 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Standard Deviation is free to download; Multi Puzzle Solver costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Multi Puzzle Solver ships an update every 22 months, Standard Deviation every 2 months. The most recent releases landed on October 14, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Multi Puzzle Solver | Standard Deviation |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/multi-puzzle-solver/id1415700450/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 3 MB | 21 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Aliaksandr Uvarau](https://appshunter.io/developer/960171474) | [Ahmad Sattar](https://appshunter.io/developer/1458483953) |

## What reviewers say

### Multi Puzzle Solver

[App page](https://appshunter.io/ios/app/multi-puzzle-solver/id1415700450)

Instantly solve newspaper and magazine puzzles by entering digits. This app automatically resolves Sudoku variants, Futoshiki, and Binary puzzles of various sizes.

**Highlights:** Sudoku solver (9x9), Sudoku-X solver (9x9), Inequality Sudoku solver (9x9), Futoshiki solver (4x4 to 9x9), Binary solver (4x4 to 14x14), Instant puzzle solutions

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

**In-app purchases:** none


### Standard Deviation

[App page](https://appshunter.io/ios/app/standard-deviation-calculator/id6444146244)

**In-app purchases:** none


## Frequently asked questions

### Is Multi Puzzle Solver free?

Multi Puzzle Solver costs $2.99, with no in-app purchases.

### Is Standard Deviation free?

Standard Deviation is free to download, with no in-app purchases.

### Do Multi Puzzle Solver or Standard Deviation have ads?

Neither Multi Puzzle Solver nor Standard Deviation shows ads.

### Which is updated more often, Multi Puzzle Solver or Standard Deviation?

Multi Puzzle Solver ships an update every 22 months, and Standard Deviation every 2 months. Most recently, Multi Puzzle Solver was updated on October 14, 2026 and Standard Deviation on September 30, 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.*