# Octal vs uCertifyPrep Microsoft 365

The clearest difference is ads: uCertifyPrep Microsoft 365 at none against Octal's shown. Octal's advantage is update cadence (every 5 months vs every 20 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Octal sells 1 one-off in-app purchase and uCertifyPrep Microsoft 365 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Octal ships an update every 5 months, uCertifyPrep Microsoft 365 every 20 months. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Octal | uCertifyPrep Microsoft 365 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 months** | Every 20 months |
| Size | 139 MB | 121 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Amrit Duwal](https://appshunter.io/developer/1507795021) | [uCertify.com](https://appshunter.io/developer/1130631061) |

## What reviewers say

### Octal

[App page](https://appshunter.io/ios/app/octal/id1597563932)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $0.99 | one-time |


### uCertifyPrep Microsoft 365

[App page](https://appshunter.io/ios/app/ucertifyprep-microsoft-365/id1665507003)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| uCertifyPrep Microsoft 365 | $49.99 | one-time |


## Frequently asked questions

### Is Octal free?

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

### Is uCertifyPrep Microsoft 365 free?

uCertifyPrep Microsoft 365 is free to download, with in-app purchases available.

### Do Octal or uCertifyPrep Microsoft 365 have ads?

Octal shows ads; uCertifyPrep Microsoft 365 does not.

### Which is updated more often, Octal or uCertifyPrep Microsoft 365?

Octal ships an update every 5 months, and uCertifyPrep Microsoft 365 every 20 months. Most recently, Octal was updated on November 11, 2026 and uCertifyPrep Microsoft 365 on November 7, 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.*