# Scollr vs PubMinder

The clearest difference is in-app purchases: Scollr at none against PubMinder's 1. Scollr also leads on update cadence (fortnightly vs every 5 weeks) and iOS requirement (15.1 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. PubMinder sells 1 one-off in-app purchase. Scollr asks for nothing beyond the download.

Scollr ships an update fortnightly, PubMinder every 5 weeks. Both last shipped on November 5, 2026.

## The numbers

| Metric | Scollr | PubMinder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Size | 32 MB | 8 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Chris Colpitts](https://appshunter.io/developer/1892198601) | [BRANDI LYNN CANTAREL](https://appshunter.io/developer/6785067075) |

## What reviewers say

### Scollr

[App page](https://appshunter.io/ios/app/scollr-research-papers/id6761957461)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Scollr free?

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

### Is PubMinder free?

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

### Do Scollr or PubMinder have ads?

Neither Scollr nor PubMinder shows ads.

### Which is updated more often, Scollr or PubMinder?

Scollr ships an update fortnightly, and PubMinder every 5 weeks. Most recently, Scollr was updated on November 5, 2026 and PubMinder on November 5, 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.*