# Octo vs Smart Convert

The clearest difference is ads: Octo at none against Smart Convert's shown. Octo also leads on monetization model (free vs free with in-app purchases) and update cadence (weekly vs every 3 weeks). On price, rating, ratings volume and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 3.0 for Octo against 3.0 for Smart Convert. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Octo ships an update weekly, Smart Convert every 3 weeks. The most recent releases landed on June 4, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Octo | Smart Convert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/octo-learn-base-conversion/id1505766480/reviews) | [3.0 (2 ratings)](https://appshunter.io/ios/app/smart-convert-base-converter/id6450381653/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 32 MB | 4 MB |
| Requires iOS | **10.0** | 16.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VESIGN d.o.o.](https://appshunter.io/developer/1505766479) | [Koya Nambo](https://appshunter.io/developer/1633778504) |

## 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 |


### Smart Convert

[App page](https://appshunter.io/ios/app/smart-convert-base-converter/id6450381653)

Easily switch numbers between various bases, from binary to base 62. Ideal for developers, students, and math enthusiasts needing quick and reliable conversions with fractional parts. Features include instant common base conversions, custom base support, and conversion history.

**Highlights:** Convert between bases 2 to 62, Quick mode for common bases, Custom mode for any base pair, Save and recall conversion history, Support for fractional numbers, Light and dark themes, Localized in 9 languages

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $2.99 | one-time |


## Frequently asked questions

### Is Octo free?

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

### Is Smart Convert free?

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

### Which has better reviews, Octo or Smart Convert?

Octo and Smart Convert are both rated 3.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do Octo or Smart Convert have ads?

Smart Convert shows ads; Octo does not.

### Which is updated more often, Octo or Smart Convert?

Octo ships an update weekly, and Smart Convert every 3 weeks. Most recently, Octo was updated on June 4, 2026 and Smart Convert on September 27, 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.*