# Pringle Pristine vs Readify PDF

The clearest difference is update cadence: Readify PDF at every 3 weeks against Pringle Pristine's every 7 months. Pringle Pristine's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Pringle Pristine ships an update every 7 months, Readify PDF every 3 weeks. The most recent releases landed on September 19, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Pringle Pristine | Readify PDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Size | 21 MB | 68 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pringle Technologies Inc.](https://appshunter.io/developer/1348006901) | [颖 罗](https://appshunter.io/developer/1846240393) |

## What reviewers say

### Pringle Pristine

[App page](https://appshunter.io/ios/app/pringle-pristine/id6471442044)

**Features:** macOS Compatibility

**In-app purchases:** none


### Readify PDF

[App page](https://appshunter.io/ios/app/readify-pdf/id6755715856)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pringle Pristine free?

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

### Is Readify PDF free?

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

### Do Pringle Pristine or Readify PDF have ads?

Neither Pringle Pristine nor Readify PDF shows ads.

### Which is updated more often, Pringle Pristine or Readify PDF?

Pringle Pristine ships an update every 7 months, and Readify PDF every 3 weeks. Most recently, Pringle Pristine was updated on September 19, 2026 and Readify PDF on September 30, 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.*