# PHD Helper vs Paperingo

The clearest difference is device support: Paperingo at 2 against PHD Helper's —. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. PHD Helper sells 1 one-off in-app purchase and Paperingo sells 1 in-app purchase, starting at $11.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | PHD Helper | Paperingo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | — | No |
| Update frequency | — | Every 5 days |
| Size | 41 MB | 54 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Lauren Gilman](https://appshunter.io/developer/1880124860) | [Premsan Inc](https://appshunter.io/developer/1844639766) |

## What reviewers say

### PHD Helper

[App page](https://appshunter.io/ios/app/phd-helper/id6760105075)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Me A Coffee | $4.99 | one-time |


### Paperingo

[App page](https://appshunter.io/ios/app/paperingo-thesis-and-papers/id6812834666)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Paperingo Monthly | $11.99 | per month |


## Frequently asked questions

### Is PHD Helper free?

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

### Is Paperingo free?

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

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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.*