# UniCount scientific calculator vs Octodecuple Calc

The clearest difference is in-app purchases: Octodecuple Calc at none against UniCount scientific calculator's 3. UniCount scientific calculator's advantage is ads (none vs shown) and update cadence (every 3 days vs every 2 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. UniCount scientific calculator sells 3 one-off in-app purchases. Octodecuple Calc asks for nothing beyond the download.

UniCount scientific calculator ships an update every 3 days, Octodecuple Calc every 2 weeks. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | UniCount scientific calculator | Octodecuple Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (14 ratings)](https://appshunter.io/ios/app/unicount-scientific-calculator/id1034143766/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 2 weeks |
| Monetization | Free | — |
| Size | 45 MB | 36 MB |
| Requires iOS | 16.0 | **15.8.3** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Danil Voidilov](https://appshunter.io/developer/939443763) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### UniCount scientific calculator

[App page](https://appshunter.io/ios/app/unicount-scientific-calculator/id1034143766)

This app offers a comprehensive calculator for various mathematical needs, including basic arithmetic, algebra, trigonometry, and complex numbers. It supports multi-story fractions, roots, and provides infinite problem solutions with a user-friendly interface and multiple modes.

**Highlights:** Multi-story fractions, powers, and roots, 16 trigonometric functions, Complex number calculations, Basic, scientific, and fraction modes, Formula editing, Degree/radian calculation, Infinite math problem solutions

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Me a Coffee | $0.99 | one-time |
| Buy Me a Pizza | $5.99 | one-time |
| You're Awesome! | $12.99 | one-time |


### Octodecuple Calc

[App page](https://appshunter.io/ios/app/octodecuple-calc/id6742386286)

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

**In-app purchases:** none


## Frequently asked questions

### Is UniCount scientific calculator free?

UniCount scientific calculator is free to download, with in-app purchases available.

### Is Octodecuple Calc free?

Octodecuple Calc is free to download, with no in-app purchases.

### Do UniCount scientific calculator or Octodecuple Calc have ads?

Octodecuple Calc shows ads; UniCount scientific calculator does not.

### Which is updated more often, UniCount scientific calculator or Octodecuple Calc?

UniCount scientific calculator ships an update every 3 days, and Octodecuple Calc every 2 weeks. Most recently, UniCount scientific calculator was updated on November 1, 2026 and Octodecuple Calc on October 25, 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.*