# PDF Reader vs LensDoc

The clearest difference is rating: LensDoc at 5.0 against PDF Reader's 4.0. LensDoc also leads on update cadence (daily vs every 4 days). PDF Reader's advantage is monetization model (ad-supported vs free with in-app purchases) and ratings volume (4 vs 1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PDF Reader sells 1 in-app purchase, starting at $19.99 per 7 days and LensDoc sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

LensDoc holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

PDF Reader ships an update every 4 days, LensDoc daily. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | PDF Reader | LensDoc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/pdf-reader-smart-reader/id6756703231/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lensdoc-ai-document-cleaner/id6759211943/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 days | **Daily** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 85 MB | 280 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [truong nguyen xuan](https://appshunter.io/developer/552933291) | [Lens Life Tech LLC](https://appshunter.io/developer/1877450182) |

## What reviewers say

### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-smart-reader/id6756703231)

This app is a fast and lightweight document viewer for PDF, Word, Excel, and PowerPoint files. It offers smart file management, offline access, and easy sharing, making it ideal for students and professionals. Enjoy a seamless reading experience with features like search, bookmarks, and dark mode.

**Highlights:** All-in-one document viewer (PDF, DOCX, XLSX, PPTX, TXT), Smart file manager, Offline document access, Fast and smooth performance, Search and bookmarking, Dark mode support, Easy document sharing

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription - 1 week | $19.99 | per 7 days |


### LensDoc

[App page](https://appshunter.io/ios/app/lensdoc-ai-document-cleaner/id6759211943)

Effortlessly remove unwanted handwriting and annotations from documents using AI. Scan, clean, and share professional-looking documents instantly. Perfect for students, teachers, and professionals needing pristine forms.

**Highlights:** AI handwriting removal, Smart document scanning, Export and print cleaned documents, Free daily document cleans, Ad-free premium option

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LensDoc Unlimited | $0.99 | per month |
| LensDoc Unlimited (Yearly) | $7.99 | per year |


## Frequently asked questions

### Is PDF Reader free?

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

### Is LensDoc free?

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

### Which has better reviews, PDF Reader or LensDoc?

LensDoc is rated higher. PDF Reader averages 4.0 out of 5 from 4 ratings, while LensDoc averages 5.0 from 1 ratings.

### Do PDF Reader or LensDoc have ads?

Both PDF Reader and LensDoc show ads.

### Which is updated more often, PDF Reader or LensDoc?

PDF Reader ships an update every 4 days, and LensDoc daily. Most recently, PDF Reader was updated on October 9, 2026 and LensDoc on October 14, 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.*