# OAJ vs MathDive

The clearest difference is in-app purchases: OAJ at none against MathDive's 1. MathDive's advantage is update cadence (every 11 months vs every 35 months) and iOS requirement (12.0 vs 14.0). On price, ads and device support there is nothing between them.

Both are free to download. MathDive sells 1 one-off in-app purchase. OAJ asks for nothing beyond the download.

OAJ ships an update every 35 months, MathDive every 11 months. The most recent releases landed on October 11, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | OAJ | MathDive |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 35 months | **Every 11 months** |
| Size | 213 MB | 68 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ginger Webs Pvt. Ltd.](https://appshunter.io/developer/808743814) | [VISITACION GUAL TENA](https://appshunter.io/developer/1453282445) |

## What reviewers say

### OAJ

[App page](https://appshunter.io/ios/app/oaj/id1510429620)

**In-app purchases:** none


### MathDive

[App page](https://appshunter.io/ios/app/mathdive/id6451105639)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all + Remove Ads | Free | one-time |


## Frequently asked questions

### Is OAJ free?

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

### Is MathDive free?

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

### Do OAJ or MathDive have ads?

Neither OAJ nor MathDive shows ads.

### Which is updated more often, OAJ or MathDive?

OAJ ships an update every 35 months, and MathDive every 11 months. Most recently, OAJ was updated on October 11, 2026 and MathDive on September 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.*