# Navidys vs Major System Trainer

The clearest difference is price: Major System Trainer at $1.99 against Navidys's $7.99. Navidys's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 15.1). On update cadence, ads and in-app purchases there is nothing between them.

Navidys costs $7.99 and Major System Trainer $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Navidys ships an update fortnightly, Major System Trainer every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Navidys | Major System Trainer |
| --- | --- | --- |
| Price | $7.99 | **$1.99** |
| Rating | **[4.4 (27 ratings)](https://appshunter.io/ios/app/navidys-dyslexia-web-reading/id1507784155/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 44.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 weeks |
| Monetization | Paid | — |
| Size | 9 MB | 31 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [michael dardol](https://appshunter.io/developer/478875188) | [Jerome Agostini](https://appshunter.io/developer/6795657664) |

## What reviewers say

### Navidys

[App page](https://appshunter.io/ios/app/navidys-dyslexia-web-reading/id1507784155)

This Safari extension helps users read web content more comfortably by offering extensive customization options for fonts, spacing, and colors. It includes specialized fonts like Dyslexie to reduce visual stress and improve comprehension.

**Highlights:** Customizable web page styling, Multiple font choices including Dyslexie, Adjustable font size and letter spacing, Line spacing control, Web page zoom functionality, Text and background color selection, System font installation for other apps

**Features:** Vision Pro support

**In-app purchases:** none


### Major System Trainer

[App page](https://appshunter.io/ios/app/major-system-trainer/id6795657662)

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

**In-app purchases:** none


## Frequently asked questions

### Is Navidys free?

Navidys costs $7.99, with no in-app purchases.

### Is Major System Trainer free?

Major System Trainer costs $1.99, with no in-app purchases.

### Do Navidys or Major System Trainer have ads?

Neither Navidys nor Major System Trainer shows ads.

### Which is updated more often, Navidys or Major System Trainer?

Navidys ships an update fortnightly, and Major System Trainer every 2 weeks. Most recently, Navidys was updated on November 3, 2026 and Major System Trainer on October 31, 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.*