# Sharp Chart 2020 LogMAR Chart — Projected letter chart

> Projected visual acuity chart for eye exams with customizable optotypes and nomenclatures. (iPhone/iPad app by Optical Directions Consulting.)

- Source: https://appshunter.io/ios/app/sharp-chart-2020-logmar-chart/id1500513811 (this page in markdown: same URL + `.md`)
- Developer: [Optical Directions Consulting](https://appshunter.io/developer/309309098)
- Category: Medical, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 23 MB
- Languages: American English
- Released: 2020-04-04
- Data updated: 2026-08-31
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/sharp-chart-2020-logmar-chart/id1500513811/reviews.md

## What is Sharp Chart 2020 LogMAR Chart?

A letter chart app designed to be used via AirPlay to a large screen (TV or computer monitor). Use either an Apple TV connected to a TV, a cable, or use a TV with built-int AirPlay such as the latest Samsung or LG.

And now you can also run the app directly on an Apple TV, without the need for an iPhone or iPad!

Has everything you'd expect, including multiple optotypes (sloan, illiterate E, landolt C, pictorial, international sloan) and multiple Visual Acuity nomenclatures (metric, imperial, decimal and logMAR).

The basic letter chart is free. Larger letters, further optotypes, other charts require an in-app purchase.

The charts you'd expect are all here:
- cross-cylinder charts
- binocular vision such as a 4-dot test
- duochrome
- confusion lines around single letters or a single row
- low contrast
- single line, both horizontal and vertical
- and more

You can even import your own images and videos to create your own chart.

Configure a chart then save it as a shortcut with a simple drag-and-drop operation.

Use Dark Mode for a dark consulting room.

Great for mobile workers, keep your chart on your iPhone and just take an Apple TV to connect to a television at your destination.

Use HomeKit lights in your consulting room? Have them switch automatically as you change charts!

Want to use Siri to control your charts by voice? Now you can!

Our Terms of Use can be found at this link: https://www.ausoptom.com/sharpchart/terms.html

## Key features

- 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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Access All Areas | $22.49 | per year |
| Access All Areas | $1.99 | per 7 days |
| Access All Areas | $3.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Access All Areas | $94.99 | one-time |


## Chart rankings

- #190 in Top Grossing · Medical (US App Store)

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/sharp-chart-2020-logmar-chart/id1500513811/reviews.md

### 5/5 — My curiosity roams

*2024-01-11*

I have been fascinated with eye charts, and this is perfect!

### 5/5 — Very good chart

*2023-07-13*

There are many vision charts out there which have not really changed for years and use fixed hardware .
The unique features are ability to set the size of the monitor and the distance from the screen in mm. So often only in 0.5m jumps

Also at last a chart that randomises the letters. Brilliant this feature alone is a reason to get the app. 

Ideas 

Logmar is about how many letters you read 
So an easy way to count number of letters would be good . 

One feature for dyslexic patient is to change the background colour as often they find a light brown colour easier to read. 

Other languages 

Great program

### 5/5 — Best app ever!

*2023-05-20*

What an amazing app. THE best app to use. Constantly use on a daily basis. Super easy interface with all charts needed. Thank you so much for this app!

**Developer response:** Thanks for such an awesome review!

## Frequently asked questions about Sharp Chart 2020 LogMAR Chart

### What is Sharp Chart used for?

Sharp Chart is used to project a visual acuity letter chart onto a large screen, such as a TV or computer monitor, for eye examinations. It supports various optotypes and visual acuity measurements.

### Does Sharp Chart have ads?

No, Sharp Chart does not contain advertisements. The app is free to download with optional in-app purchases for advanced features.

### What devices is Sharp Chart compatible with?

Sharp Chart is compatible with Apple TV, iPhone, iPad, and iPod. It can be used directly on Apple TV or projected to compatible smart TVs.

### What types of charts are available in Sharp Chart?

Sharp Chart includes standard letter charts, cross-cylinder charts, binocular vision tests like the 4-dot test, duochrome tests, confusion lines, low contrast charts, and single line charts. Users can also import their own images and videos.

### How much does Sharp Chart cost?

The basic letter chart functionality of Sharp Chart is free. Additional optotypes, charts, and features require in-app purchases, with subscription plans available for 'Access All Areas'.

### Can I control Sharp Chart with my voice?

Yes, Sharp Chart supports Siri voice control, allowing you to manage charts and settings using voice commands.

### How often is Sharp Chart updated?

The latest version of Sharp Chart is 1.61, last updated on December 2, 2025. Updates typically include new features, bug fixes, and performance improvements.

### What are the subscription options for Sharp Chart?

Sharp Chart offers 'Access All Areas' subscriptions with options for weekly ($1.99), monthly ($3.99 with a 3-day free trial), and yearly ($22.49 with a 1-month free trial) plans.

## Version history (last 5 releases)

### 1.61 — 2025-12-02

Chart updates!
- There's a new fixation disparity / suppression chart in the binocular charts, with both horizontal and vertical options.
- I added a new Optotype to match International standard 10 letters. The random function on the original chart still only shows the standard 10 letters, but the new optotype has new default charts that display only those 10 letters. 

Upgrades!
- You can now choose the colours for the binocular charts. Use red/green instead of red/blue? Just set the colours accordingly. The "binocular" colour will be automatically calculated for you.
- You can now view and delete saved monitors in the settings screen.
- The calibration / settings screen has been improved to show the colours and also a sample letter.
- The fan chart has been moved to the astigmatism charts section, which just makes a lot more sense.

Bug fixes!
- Fixed monitor settings sharing between devices. Your monitor settings won't disappear anymore if you're using multiple devices.

Keeping up with the Joneses!
- Supports iOS 26
- Minimum iOS version is now 15.6.

### 1.60 — 2025-03-12

- I added a new optotype (digits), which is the numbers 0 to 9 in the same font as the main letters.
- The "randomise" chart action will now pause/play a video. By default this means you can tap the screen to pause / play a video.
- Oh, and a BIG bug fix. You know how if you connect to AirPlay after starting the app, or it drops out and you have to reconnect and sometimes the scaling is off? Yes, well that's been fixed! Sorry it took so long to fix it!

### 1.50 — 2024-03-04

This version adds Siri shortcut support to enable you to control the app from a distance just with your voice, or anything else that integrates with the Shortcuts app. You can both perform actions like increase letter size and you can open a particular named chart. To name a chart, just hold your finger on a chart shortcut.

There's also a new Optotype that follows the BS4274.3 standard.

And there's been a bug fix. If you've noticed that your chart is running slowly, that's likely because a bug has caused the shortcuts list and the recent shortcuts list to keep doubling itself. This version fixes that bug. You may need to reset your shortcuts back to the default to remove all the double-ups.

### 1.41 — 2023-10-04

The randomisation of letters has been made less random, so that the same letter never appears in the same place, and letters in the line above or below never repeat in the same location. Despite being less random, this makes the charts look more random...

### 1.40 — 2023-08-10

- Added two new gestures: two finger swipe up & two finger swipe down.
- Added two new gesture actions: move line up & move line down.
- If you set a gesture action to "move line up" (or down), which only works on the multiple line chart, then it will work as an enlarge / reduce action on the other charts. 
- Also, if you move the line up (or down) too far, then the chart will change to the next larger / smaller chart (this also works for the Apple TV app).

I suggest changing the single swipe up / down to move the line up / down, and make the double finger swipe up / down the enlarge / reduce actions. This works really well.

There's also a brand new Settings screen if you're on iOS 16 or above.

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All apps by Optical Directions Consulting: https://appshunter.io/developer/309309098

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*