# Preview mini vs poly

The clearest difference is update cadence: Preview mini at every 10 days against poly's every 3 months. poly's advantage is iOS requirement (15.1 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Preview mini sells 2 one-off in-app purchases and poly sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Preview mini ships an update every 10 days, poly every 3 months. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Preview mini | poly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (212 ratings)](https://appshunter.io/ios/app/preview-mini-image-and-pdf-tool/id1593078015/reviews)** | — |
| Number of ratings | **212** | — |
| Positive reviews | 63.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 103 MB | 74 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Marian Koenig](https://appshunter.io/developer/1394020504) | [TATSUO NAKANO](https://appshunter.io/developer/1846200191) |

## What reviewers say

### Preview mini

[App page](https://appshunter.io/ios/app/preview-mini-image-and-pdf-tool/id1593078015)

Edit and annotate images and PDFs with a desktop-like experience on your iPhone and iPad. Offers advanced features for viewing, converting, and managing files, inspired by macOS.

**Highlights:** Image editing and cropping, PDF annotation and editing, File conversion, Drag and drop support, Keyboard shortcuts, Password protection for PDFs

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Preview mini PRO | $4.99 | one-time |
| Fullversion | $8.99 | one-time |

**What reviewers like**

- 👍 Useful application, replaces MS Paint
- 💡 Video tutorials are helpful
- 🚀 Makes life easier
- 👍 Wonderful and powerful iPad app
- 👍 Great replacement for Preview (almost)

**What reviewers complain about**

- 🐛 Changes not saved on iPad
- 🐛 Does not export PDF as picture
- 🐛 Difficult to use on iPad
- 🐛 Crashing the app on large PDFs
- 🐛 Only allows acting on one page at a time

**Reported bugs**

- Changes not saved when attaching to email
- App errors out on large PDFs and crashes
- App shuts down during photo editing, unsaved work lost
- Cannot type the letter 'y' in documents
- Payment issues with Apple, requires new credit card data

**Requested features**

- Split-screen or slide-over capability
- Export PDF as picture (JPG, etc.)
- Ability to paste one image on top of another
- Ctrl-Z for quick undo
- Straight line option for markup


### poly

[App page](https://appshunter.io/ios/app/poly-morph-timer/id6765544218)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is Preview mini free?

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

### Is poly free?

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

### Do Preview mini or poly have ads?

Neither Preview mini nor poly shows ads.

### Which is updated more often, Preview mini or poly?

Preview mini ships an update every 10 days, and poly every 3 months. Most recently, Preview mini was updated on October 13, 2026 and poly on October 7, 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.*