# Dark Reader vs PDF Indexer

The clearest difference is rating: PDF Indexer at 5.0 against Dark Reader's 4.4. PDF Indexer also leads on in-app purchases (none vs 2) and update cadence (every 2 days vs every 2 months). Dark Reader's advantage is ads (none vs shown) and ratings volume (7 vs 2). On price and device support there is nothing between them.

Both are free to download. Dark Reader sells 2 in-app purchases, starting at $4.99 per year. PDF Indexer asks for nothing beyond the download.

PDF Indexer holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 7 and 2 respectively.

Dark Reader ships an update every 2 months, PDF Indexer every 2 days. The most recent releases landed on September 28, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Dark Reader | PDF Indexer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (7 ratings)](https://appshunter.io/ios/app/dark-reader-pdf-viewer/id6736392716/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pdf-indexer/id6799589624/reviews)** |
| Number of ratings | **7** | 2 |
| Positive reviews | 30.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 67 MB | 53 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Utsav Mangla](https://appshunter.io/developer/1729995457) | [MATTHEW BYONG BAE](https://appshunter.io/developer/6776132813) |

## What reviewers say

### Dark Reader

[App page](https://appshunter.io/ios/app/dark-reader-pdf-viewer/id6736392716)

Easily read PDF documents in a comfortable dark mode to reduce eye strain and save battery. This app automatically converts any PDF into a dark theme for a better reading experience on your devices.

**Highlights:** PDF dark mode conversion, Automatic dark mode application, All-in-one PDF viewer, Eye comfort focus, Supports iPhone, iPad, macOS

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual | $4.99 | per year |
| Lifetime: Buy once Use forever | $5.99 | one-time |


### PDF Indexer

[App page](https://appshunter.io/ios/app/pdf-indexer/id6799589624)

This app creates fast navigation for PDFs by turning title-to-page mappings into searchable indexes. It allows you to import mappings from various file formats and opens directly to the mapped page within the PDF. All data is stored locally on your device for privacy.

**Highlights:** Search across multiple indexed PDFs, Exact, prefix, substring, and alias matching, Jump directly to mapped pages, Import mappings from CSV, JSON, XLSX, and text, Page-offset calibration, Mapping correction and export, Local-first data storage

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

**In-app purchases:** none


## Frequently asked questions

### Is Dark Reader free?

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

### Is PDF Indexer free?

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

### Which has better reviews, Dark Reader or PDF Indexer?

PDF Indexer is rated higher. Dark Reader averages 4.4 out of 5 from 7 ratings, while PDF Indexer averages 5.0 from 2 ratings.

### Do Dark Reader or PDF Indexer have ads?

PDF Indexer shows ads; Dark Reader does not.

### Which is updated more often, Dark Reader or PDF Indexer?

Dark Reader ships an update every 2 months, and PDF Indexer every 2 days. Most recently, Dark Reader was updated on September 28, 2026 and PDF Indexer on October 18, 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.*