# eTRY vs MathZAPP

The clearest difference is ads: eTRY at none against MathZAPP's shown. MathZAPP's advantage is iOS requirement (11.0 vs 14.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

eTRY ships an update every 3 weeks, MathZAPP fortnightly. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | eTRY | MathZAPP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 18 MB | 84 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ORBIS, Inc](https://appshunter.io/developer/1396708268) | [Colette Kent](https://appshunter.io/developer/1704717889) |

## What reviewers say

### eTRY

[App page](https://appshunter.io/ios/app/etry/id6451458020)

**Features:** macOS Compatibility

**In-app purchases:** none


### MathZAPP

[App page](https://appshunter.io/ios/app/mathzapp/id6463654533)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is eTRY free?

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

### Is MathZAPP free?

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

### Do eTRY or MathZAPP have ads?

MathZAPP shows ads; eTRY does not.

### Which is updated more often, eTRY or MathZAPP?

eTRY ships an update every 3 weeks, and MathZAPP fortnightly. Most recently, eTRY was updated on September 18, 2026 and MathZAPP on September 10, 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.*