# Knowlify PRIME vs Engineer Amol

The clearest difference is in-app purchases: Engineer Amol at none against Knowlify PRIME's 10. Engineer Amol also leads on device support. On price and iOS requirement there is nothing between them.

Both are free to download. Knowlify PRIME sells 10 one-off in-app purchases. Engineer Amol asks for nothing beyond the download.

## The numbers

| Metric | Knowlify PRIME | Engineer Amol |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Update frequency | — | Fortnightly |
| Size | 144 MB | 103 MB |
| Requires iOS | 15.5 | **14.0** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Online Learning](https://appshunter.io/developer/1790866777) | [Anuj Gupta](https://appshunter.io/developer/1651060633) |

## What reviewers say

### Knowlify PRIME

[App page](https://appshunter.io/ios/app/knowlify-prime/id6504239001)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package - AU | $34.99 | one-time |
| Package - AV | $34.99 | one-time |
| Package - AY | $39.99 | one-time |
| Package - AW | $39.99 | one-time |
| Package - AX | $39.99 | one-time |
| Package - BD | $39.99 | one-time |
| Package - BA | $39.99 | one-time |
| Package - BE | $44.99 | one-time |
| Package - BF | $49.99 | one-time |
| Package - BG | $49.99 | one-time |


### Engineer Amol

[App page](https://appshunter.io/ios/app/engineer-amol/id6752796959)

**In-app purchases:** none


## Frequently asked questions

### Is Knowlify PRIME free?

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

### Is Engineer Amol free?

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

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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.*