PMag vs Theia Vision Assistant
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
PMag
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PMag is the missing app that all visually-impaired user would like to have on their devices. It simulates all of the specific (and specialized) features of a real and expensive optic magnifiers for low-vision people. There are case where the low-vision is to severe that a user could have necessity to magnify some objects with VoiceOver still running. PMag is totally accessible with VoiceOver! PMag's features are as follows: * Normal mode; * Black and White mode; * 14 false-color high-contrast schemes; * Max zoom factor as allowed by device in use; * Real time brightness, contrast and sharpness control; * Real time exposure and focus tuning; * Torch (if available); Gestures to manipulate parameters are quite simple: * Swipe left/right with one finger to change parameter type (brightness, contrast and sharpness); * Swipe up/down with one finger to increase/decrease current parameter value; * Rotate two fingers to go through the 14 false-color schemes; * Pinch in/out with two fingers to zoom out/in; * Tap with one finger to focus at the screen center; * When VoiceOver is active tapping once with two fingers you can listen the current magnifier state;
Theia Vision Assistant
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Theia - Vision Assistant Theia is a virtual assistant designed to make life easier for people who suffer from visual impairment. Through advanced AI models you will be able to easily read text from any surface, recognise objects and their position all while communicating vocally with the assistant. The app is designed to work almost entirely through voice commands. There are several apps on the stores that aim to assist people with visual impairments, but most of them do not fully exploit the potential offered by AI and cloud computing, resulting in unclear transcriptions and not concrete for those suffering from visual impairment. What you'll love about Theia: Advanced AI-powered text recognition from any surface Object identification with precise positioning information Intuitive voice command interface designed for accessibility Continuous improvements through cloud computing technology Getting Started: First install the Theia - Vision assistant app for free on your device Open the app and follow the wizard to start talking to the assistant You will have a free trial week in which you can cancel your subscription if it doesn't meet your needs Theia requires a subscription following your one-week free trial. You can easily manage or cancel your subscription at any time through your account settings. Contact Information: Customer Service: contact@theiaglasses.com Website: https://theiaglasses.com/ Terms & Policies: Terms of Service: https://theiaglasses.com/app-terms-of-service Privacy Policy: https://theiaglasses.com/app-privacy-policy EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: PMag at none against Theia Vision Assistant's shown. PMag also leads on iOS requirement (12.0 vs 15.5). Theia Vision Assistant's advantage is update cadence (every 3 weeks vs every 34 months). On price, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PMag ships an update every 34 months, Theia Vision Assistant every 3 weeks. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.
| Parameter | PMag | Theia Vision Assistant |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 34 months | Every 3 weeks โ better |
| Ads | No โ better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 โ better | 15.5 |
| Further details โ not scored | ||
| Size | 9 MB | 88 MB |
| Age rating | 4+ | 4+ |
| Developer | Claudio Guida | THEIA S.R.L. |
In-app purchases
PMag
No in-app purchases
Theia Vision Assistant
No in-app purchases
Questions
Is PMag free?
Is Theia Vision Assistant free?
Do PMag or Theia Vision Assistant have ads?
Which is updated more often, PMag or Theia Vision Assistant?
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