# Octo vs Converter Binary Calculator

The clearest difference is rating: Converter Binary Calculator at 5.0 against Octo's 3.0. Octo's advantage is ads (none vs shown) and update cadence (weekly vs every 2 months). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Octo sells 1 one-off in-app purchase and Converter Binary Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Converter Binary Calculator holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Octo ships an update weekly, Converter Binary Calculator every 2 months. The most recent releases landed on October 4, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Octo | Converter Binary Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/octo-learn-base-conversion/id1505766480/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/converter-binary-calculator/id6504189782/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 32 MB | 5 MB |
| Requires iOS | **10.0** | 15.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [VESIGN d.o.o.](https://appshunter.io/developer/1505766479) | [Cristina Munoz Castillo](https://appshunter.io/developer/1600497964) |

## What reviewers say

### Octo

[App page](https://appshunter.io/ios/app/octo-learn-base-conversion/id1505766480)

Master number base conversions with this educational tool. It offers step-by-step solutions for decimal to any base conversions and provides over 12,000 practice assignments to solidify your understanding.

**Highlights:** Binary, octal, decimal, hexadecimal conversion, Step-by-step decimal to any base solutions, Over 12,000 practice assignments, Supports iPhone and iPod

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Octo Plus | $1.99 | one-time |


### Converter Binary Calculator

[App page](https://appshunter.io/ios/app/converter-binary-calculator/id6504189782)

Perform mathematical operations like addition, subtraction, division, and multiplication across binary, hexadecimal, octal, and decimal number systems. Supports both integer and fractional numbers with step-by-step solutions.

**Highlights:** Binary, hexadecimal, octal, and decimal calculations, Integer and fractional number support, Step-by-step solution explanations, Conversions between number bases, Addition, subtraction, multiplication, division

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads binary converter | $1.99 | one-time |


## Frequently asked questions

### Is Octo free?

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

### Is Converter Binary Calculator free?

Converter Binary Calculator is free to download, with in-app purchases available.

### Which has better reviews, Octo or Converter Binary Calculator?

Converter Binary Calculator is rated higher. Octo averages 3.0 out of 5 from 2 ratings, while Converter Binary Calculator averages 5.0 from 2 ratings.

### Do Octo or Converter Binary Calculator have ads?

Converter Binary Calculator shows ads; Octo does not.

### Which is updated more often, Octo or Converter Binary Calculator?

Octo ships an update weekly, and Converter Binary Calculator every 2 months. Most recently, Octo was updated on October 4, 2026 and Converter Binary Calculator on October 2, 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.*