# JustPDF vs Ariv

The clearest difference is in-app purchases: Ariv at none against JustPDF's 1. Ariv also leads on iOS requirement (15.0 vs 18.6). JustPDF's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads and device support there is nothing between them.

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

JustPDF ships an update every 2 weeks, Ariv every 2 months. Both last shipped on October 28, 2026.

## The numbers

| Metric | JustPDF | Ariv |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 23 MB | 37 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | +4 | 4+ |
| Developer | [Johanna Hoppe](https://appshunter.io/developer/1869099620) | [Ariv Studios](https://appshunter.io/developer/1881812958) |

## What reviewers say

### JustPDF

[App page](https://appshunter.io/ios/app/justpdf-offline-pdf-reader/id6761554226)

A minimalist PDF reader for local document storage and offline viewing. Import PDFs from various sources into a private library designed for focus. Enjoy a clean, ad-free experience with a one-time purchase for unlimited access.

**Highlights:** Offline PDF reading, Private on-device storage, Clean PDF viewer, No ads, No account or cloud dependency, Fast access to library, One-time purchase

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| JustPDF Lifetime Unlock | $4.99 | one-time |


### Ariv

[App page](https://appshunter.io/ios/app/ariv-notes-pkm-second-brain/id6776939051)

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

**In-app purchases:** none


## Frequently asked questions

### Is JustPDF free?

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

### Is Ariv free?

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

### Do JustPDF or Ariv have ads?

Neither JustPDF nor Ariv shows ads.

### Which is updated more often, JustPDF or Ariv?

JustPDF ships an update every 2 weeks, and Ariv every 2 months. Most recently, JustPDF was updated on October 28, 2026 and Ariv on October 28, 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.*