# PHD Helper vs PubMinder

The clearest difference is device support: PubMinder at 2 against PHD Helper's —. PHD Helper's advantage is iOS requirement (15.1 vs 18.0). On price and in-app purchases there is nothing between them.

Both are free to download. PHD Helper sells 1 one-off in-app purchase and PubMinder sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | PHD Helper | PubMinder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | — | No |
| Update frequency | — | Every 5 weeks |
| Size | 41 MB | 8 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Lauren Gilman](https://appshunter.io/developer/1880124860) | [BRANDI LYNN CANTAREL](https://appshunter.io/developer/6785067075) |

## 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 |


### PubMinder

[App page](https://appshunter.io/ios/app/pubminder/id6785066503)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Preprint Sources Unlock | $4.99 | one-time |


## Frequently asked questions

### Is PHD Helper free?

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

### Is PubMinder free?

PubMinder 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.*