# Gymstructor Training App vs eGlasses

The clearest difference is update cadence: eGlasses at weekly against Gymstructor Training App's every 3 months. Gymstructor Training App's advantage is iOS requirement (16.6 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Gymstructor Training App sells 3 in-app purchases, starting at $3.99 per month and eGlasses sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Gymstructor Training App ships an update every 3 months, eGlasses weekly. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Gymstructor Training App | eGlasses |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Size | 67 MB | 214 MB |
| Requires iOS | **16.6** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Jakub Linhart](https://appshunter.io/developer/1150844191) | [Martin Zarecky](https://appshunter.io/developer/1449586873) |

## What reviewers say

### Gymstructor Training App

[App page](https://appshunter.io/ios/app/gymstructor-training-app/id6462850128)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $3.99 | per month |
| Three-month subscription | $9.99 | per 3 months |
| Annual subscription | $29.99 | per year |


### eGlasses

[App page](https://appshunter.io/ios/app/eglasses-allergens-additives/id6751740816)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Annual (Family) | $22.99 | per year |


## Frequently asked questions

### Is Gymstructor Training App free?

Gymstructor Training App is free to download, with in-app purchases available.

### Is eGlasses free?

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

### Do Gymstructor Training App or eGlasses have ads?

Neither Gymstructor Training App nor eGlasses shows ads.

### Which is updated more often, Gymstructor Training App or eGlasses?

Gymstructor Training App ships an update every 3 months, and eGlasses weekly. Most recently, Gymstructor Training App was updated on October 7, 2026 and eGlasses on October 24, 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.*