# Speech Central vs PDF Dark

The clearest difference is price: Speech Central at Free against PDF Dark's $3.99. Speech Central also leads on review sentiment (70% vs 25%) and rating (4.6 vs 4.0). PDF Dark's advantage is in-app purchases (none vs 1). On ads and iOS requirement there is nothing between them.

Speech Central is free to download; PDF Dark costs $3.99 up front. Speech Central sells 1 one-off in-app purchase. PDF Dark asks for nothing beyond the download.

Speech Central holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Speech Central has 1.6K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 70% of Speech Central's written reviews are positive against 25% of PDF Dark's.

Speech Central ships an update weekly, PDF Dark every 11 months. The most recent releases landed on September 24, 2026 and August 25, 2026 respectively.

## The numbers

| Metric | Speech Central | PDF Dark |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.6 (1.6K ratings)](https://appshunter.io/ios/app/speech-central-voice-reader/id1127349155/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/pdf-dark/id6470178025/reviews) |
| Number of ratings | **1.6K** | 2 |
| Positive reviews | **69.6% of reviews** | 25.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 11 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 34 MB | 1 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | **iPhone, iPad, Apple TV, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Labsii](https://appshunter.io/developer/1127349154) | [Jorge Lucioni Charalla](https://appshunter.io/developer/1198674844) |

## What reviewers say

### Speech Central

[App page](https://appshunter.io/ios/app/speech-central-voice-reader/id1127349155)

This app transforms text from various documents and web pages into speech, offering a distraction-free reading experience. It supports numerous file formats and provides customizable voices, including offline and AI options. Designed for productivity and accessibility, it syncs across Apple devices and offers study tools.

**Highlights:** Optimized PDF & Web Reading, Broad Document Support (PDF, EPUB, DOCX), Offline and Cloud AI Voices, Cross-device Sync, CarPlay & Apple Watch Support, Accessibility Profiles, Annotation and Export Tools

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Speech Central Pro | $9.99 | one-time |

**What reviewers like**

- 🚀 Life-saving app
- 👍 Nice app
- 👍 Great app
- 👍 Affordable and full-featured
- 👍 Excellent app for accessibility

**What reviewers complain about**

- 🐛 Not great
- 🐛 Trash
- 🐛 Robotic voices
- 🐛 Terrible voices
- 🐛 Buggy

**Reported bugs**

- Crashes when changing advanced settings
- Inconsistent behavior when importing documents
- Fails to recognize some file formats
- Playback issues with high-speed mode
- Repeating chapters unexpectedly

**Requested features**

- Add more natural-sounding voices
- Improve chapter/section navigation
- Allow custom pronunciation of words
- Add support for more languages
- Integrate with Bookshare library


### PDF Dark

[App page](https://appshunter.io/ios/app/pdf-dark/id6470178025)

Transform bright PDF pages into a comfortable dark mode for easier reading at night. Reduce eye strain, improve focus, and potentially save battery life. Enjoy a smoother reading experience on your devices.

**Highlights:** Dark mode for PDFs, Reduced eye strain, Improved focus, Battery saving, Multi-device support

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

**In-app purchases:** none


## Frequently asked questions

### Is Speech Central free?

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

### Is PDF Dark free?

PDF Dark costs $3.99, with no in-app purchases.

### Which has better reviews, Speech Central or PDF Dark?

Speech Central is rated higher. Speech Central averages 4.6 out of 5 from 1.6K ratings, while PDF Dark averages 4.0 from 2 ratings.

### Do Speech Central or PDF Dark have ads?

Neither Speech Central nor PDF Dark shows ads.

### Which is updated more often, Speech Central or PDF Dark?

Speech Central ships an update weekly, and PDF Dark every 11 months. Most recently, Speech Central was updated on September 24, 2026 and PDF Dark on August 25, 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.*