# Sharp Chart 2020 LogMAR Chart vs Eye Training Tool

The clearest difference is price: Sharp Chart 2020 LogMAR Chart at Free against Eye Training Tool's $9.99. Sharp Chart 2020 LogMAR Chart also leads on review sentiment (100% vs 67%). Eye Training Tool's advantage is in-app purchases (none vs 4) and iOS requirement (13.0 vs 15.6). On update cadence, ads and device support there is nothing between them.

Sharp Chart 2020 LogMAR Chart is free to download; Eye Training Tool costs $9.99 up front. Sharp Chart 2020 LogMAR Chart sells 4 in-app purchases, starting at $1.99 per 7 days. Eye Training Tool asks for nothing beyond the download.

Sharp Chart 2020 LogMAR Chart ships an update every 3 months, Eye Training Tool every 4 months. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Sharp Chart 2020 LogMAR Chart | Eye Training Tool |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sharp-chart-2020-logmar-chart/id1500513811/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 23 MB | 55 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod, Apple TV | iPhone, iPad, iPod, Mac |
| Age rating | 4+ | 12+ |
| Developer | [Optical Directions Consulting](https://appshunter.io/developer/309309098) | [Shanghai Liaoxiang Technology Co., Ltd.](https://appshunter.io/developer/1497850980) |

## What reviewers say

### Sharp Chart 2020 LogMAR Chart

[App page](https://appshunter.io/ios/app/sharp-chart-2020-logmar-chart/id1500513811)

This app projects a visual acuity chart onto a large screen for eye examinations. It offers various optotypes and visual acuity nomenclatures, with advanced features and additional charts available through in-app purchases. It can also be controlled via voice commands and integrated with smart home lighting.

**Highlights:** Projected letter chart via AirPlay, Multiple optotypes and visual acuity nomenclatures, Customizable charts with imported images/videos, Dark Mode for consulting rooms, Siri voice control, HomeKit lighting integration

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Access All Areas | $1.99 | per 7 days |
| Access All Areas | $3.99 | per month |
| Access All Areas | $22.49 | per year |
| Access All Areas | $94.99 | one-time |


### Eye Training Tool

[App page](https://appshunter.io/ios/app/eye-training-tool/id1634970491)

This app offers scientific eye relaxation and visual perception exercises based on neuroplasticity and optometry principles. It features Gabor pattern training, dynamic visual tracking, and accommodation exercises to improve visual acuity, eye muscle flexibility, and reduce eye strain.

**Highlights:** Gabor visual perception training, Dynamic visual tracking exercises, Accommodation and convergence assistance, Eye muscle relaxation techniques, Binocular coordination training, Scientific eye relaxation programs

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sharp Chart 2020 LogMAR Chart free?

Sharp Chart 2020 LogMAR Chart is free to download, with in-app purchases available.

### Is Eye Training Tool free?

Eye Training Tool costs $9.99, with no in-app purchases.

### Do Sharp Chart 2020 LogMAR Chart or Eye Training Tool have ads?

Neither Sharp Chart 2020 LogMAR Chart nor Eye Training Tool shows ads.

### Which is updated more often, Sharp Chart 2020 LogMAR Chart or Eye Training Tool?

Sharp Chart 2020 LogMAR Chart ships an update every 3 months, and Eye Training Tool every 4 months. Most recently, Sharp Chart 2020 LogMAR Chart was updated on October 16, 2026 and Eye Training Tool 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.*