# Deep Revision vs PSLE

The clearest difference is iOS requirement: Deep Revision at 15.1 against PSLE's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Deep Revision sells 1 one-off in-app purchase and PSLE sells 3 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Deep Revision | PSLE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Daily |
| Size | 44 MB | 7 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nowsath Rifaya](https://appshunter.io/developer/6789596498) | [1STGROUP PRIVATE LIMITED](https://appshunter.io/developer/6773183984) |

## What reviewers say

### Deep Revision

[App page](https://appshunter.io/ios/app/deep-revision-psle-science/id6796186832)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access Unlock | $6.99 | one-time |


### PSLE

[App page](https://appshunter.io/ios/app/psle/id6805716919)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $12.99 | per month |
| 6 Months | $59.99 | per 6 months |
| Yearly | $99.99 | per year |


## Frequently asked questions

### Is Deep Revision free?

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

### Is PSLE free?

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

### Do Deep Revision or PSLE have ads?

Neither Deep Revision nor PSLE shows ads.

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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.*