# Optica vs Speech Central

The clearest difference is in-app purchases: Optica at none against Speech Central's 1. Optica also leads on rating (5.0 vs 4.6) and review sentiment (93% vs 69%). Speech Central's advantage is update cadence (every 9 days vs every 62 months) and ratings volume (1.6K vs 1). On price, ads and device support there is nothing between them.

Both are free to download. Speech Central sells 1 one-off in-app purchase. Optica asks for nothing beyond the download.

Optica holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Speech Central has 1.6K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 93% of Optica's written reviews are positive against 69% of Speech Central's.

Optica ships an update every 62 months, Speech Central every 9 days. The most recent releases landed on October 2, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Optica | Speech Central |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/optica-app/id930867575/reviews)** | [4.6 (1.6K ratings)](https://appshunter.io/ios/app/speech-central-voice-reader/id1127349155/reviews) |
| Number of ratings | 1 | **1.6K** |
| Positive reviews | **92.9% of reviews** | 69.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 62 months | **Every 9 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 83 MB | 34 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Apple TV, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Luis Cornejo](https://appshunter.io/developer/930867574) | [Labsii](https://appshunter.io/developer/1127349154) |

## What reviewers say

### Optica

[App page](https://appshunter.io/ios/app/optica-app/id930867575)

This app assists opticians and optometrists with complex optical calculations. It helps explain optical concepts to clients and includes tools for lens transposition, vertex distance adjustments, and addition calculations.

**Highlights:** Lens transposition with optical cross representation, Distometry for vertex distance power adjustments, Over-correction calculation for toric lenses, Theoretical addition calculation based on age and distance, Approximate lens edge and center thickness calculation

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Optica free?

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

### Is Speech Central free?

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

### Which has better reviews, Optica or Speech Central?

Optica is rated higher. Optica averages 5.0 out of 5 from 1 ratings, while Speech Central averages 4.6 from 1.6K ratings.

### Do Optica or Speech Central have ads?

Neither Optica nor Speech Central shows ads.

### Which is updated more often, Optica or Speech Central?

Optica ships an update every 62 months, and Speech Central every 9 days. Most recently, Optica was updated on October 2, 2026 and Speech Central on October 13, 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.*