Comparison

Eye Chart HD vs GLASSES

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Eye Chart HD

This app provides a clinically evaluated visual acuity screening tool for various settings. It offers randomized Snellen, Tumbling E, and other charts to help assess vision, especially when traditional charts are unavailable or memorized. Additional features are available through a monthly subscription.

Highlights
  • Randomized Snellen charts
  • Tumbling E charts
  • Pocket vision screener
  • Line randomization
  • Chart selector
  • Near vision chart (subscription)
  • Amsler Grid (subscription)
Read full description

Easy to use, clinically evaluated visual acuity screening app. Over 1M people have downloaded our mobile electronic eye charts for iOS. Read below for more information on the clinical evaluations. Useful for: - Triaging - House visits - Hospital rounds - Emergency rooms - Schools - Patients who have memorized the office chart Eye Chart HD is a pocket vision screener: randomized Snellen, Tumbling E, and other charts to offer a rough but useful screen of visual acuity. Simply press a button to randomize the entire eye chart, or touch an individual line of the chart to randomize that line. Swipe right for the chart selector. Eye care professionals around the world use Snellen Eye Charts to measure visual acuity. However, patients often memorize the classic Snellen chart, leading to less accurate vision measurements. Enter Eye Chart HD! Though this unique, pocket-sized randomizable eye chart should not be used as a primary visual acuity measuring tool, it can provide a handy rough vision screen when a chart is not available, or it can be used to complement static, wall-based Snellen charts. Subscription: In addition to our free features, Eye Chart HD offers a subscription to exclusive paid features, including the Randomizable Near Vision Chart, Line Isolation, Amsler Grid, and Single Optotype Charts! The subscription costs $2.99 per month of access and has to be purchased specially within the app. Once purchased, it is available through an auto-renewing subscription which will renew each month for your convenience until you choose to turn it off. Please let us know if you have any questions about your subscription at eyechartapp@gmail.com. Below is further information on clinical evaluations that have been done. Please do check out the papers cited below if you have concerns. We didn't do these tests and can't speak to them, but we are providing them here for transparency and your reference:  Snellen & Tumbling E charts on Eye Chart HD on iPhone: “Comparison of Visual Acuity Measurement Using Three Methods: Standard ETDRS Chart, Near Chart and a Smartphone-Based Eye Chart Application” Clinical Ophthalmology. Conclusion: “VA measurements with the Near Chart and smartphone-based Eye Chart application corresponded well to the standard ETDRS chart, suggesting potential utility of alternative portable VA tests for in-office or remote vision monitoring, particularly during periods of physical distancing such as the Coronavirus disease 2019 (COVID-19) era” Sloan Chart on Eye Chart HD on iPhone: “Does the EyeChart App for iPhones Give Comparable Measurements to Traditional Visual Acuity Charts?” The British and Irish Orthoptic Journal. Conclusion: “This study found that the VA scores achieved on the EyeChart app are comparable to those achieved using the gold-standard ETDRS chart in a healthy young adult population. This is a promising finding; however, it is necessary for further large-scale studies to investigate the EyeChart app when used on a variety of patient population groups.” Snellen Chart on Eye Chart HD on iPad Mini: “Comparative Study of the Snellen iPad App versus Traditional Light Box Snellen Chart in Distance Visual Acuity” International Journal of Ophthalmology and Clinical Research. Conclusion: “It showed that the results from Eye Chart HD app used in an iPad Mini 2 agreed with the results of the traditional light-box Snellen Chart when used at the Outpatient Department.“ Rapid Vision Screening Chart on Eye Chart HD on iPhone/iPod: “Assessment of a rapid method to determine approximate visual acuity in large surveys and other such settings.” American Journal of Ophthalmology. Conclusion: “An iPod application requiring about a 1-minute testing time provides an objective, portable, rapid, and low-cost method to determine approximate VA, allowing VA testing to be performed efficiently in large surveys and other settings where approximate VA should be measured.”

About

GLASSES

This app provides an instant magnification tool for reading small text, acting as a digital reading aid. It offers a simple interface with large buttons and an integrated light for better visibility. It can also function as a makeup mirror using the front camera.

Highlights
  • Instant 2x zoom on app open
  • Integrated light for low-light reading
  • Front camera mirror function
  • Large, clear buttons
  • No ads
Features
Read full description

The quickest and most easy to use reading aid magnifier available, with a clean and clear user interface. No annoying ads. Clean functional user interface makes Glasses a joy to use. Never forget your spare reading glasses - use Glasses right there on your phone all the time. If you do forget your reading glasses, or just need a little help reading that small medicine bottle, or dimly lit restaurant menu, then GLASSES is for you. Flip to the front camera and you have a handy makeup mirror always at the ready too. If you're already having trouble reading then you need as few steps as possible and with BIG clear buttons, GLASSES is designed for you. Some say "Why not just use the built in camera?" Well: With GLASSES you are immediately seeing at 2x zoom with just the ONE tap that opens the app. To use the Camera app with light you open the app, swipe to video mode, zoom the display, tap the light options, turn the light on - that's at least five taps/swipes all while using a more complex interface with small buttons, if you can even work out how to do it! And one thing the built in camera cannot do is zoom the front camera/mirror view - GLASSES can.

Screenshots

Eye Chart HD4 screens
GLASSES4 screens

Verdict

The call

The clearest difference is review sentiment: GLASSES at 75% against Eye Chart HD's 33%. GLASSES also leads on in-app purchases (none vs 2) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Eye Chart HD sells 2 in-app purchases, starting at $2.99 per month. GLASSES asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GLASSES holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: GLASSES has 260 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 33% of Eye Chart HD's written reviews are positive against 75% of GLASSES's.

UpkeepUpdate frequency

Eye Chart HD ships an update every 6 months, GLASSES every 6 days. The most recent releases landed on November 3, 2026 and November 2, 2026 respectively.

Scorecard7 real differences · 3 level
Eye Chart HD versus GLASSES: the parameters behind the verdict, then further details
ParameterEye Chart HDGLASSES
PriceFreeFree
Rating4.4 (7 ratings)4.8 (260 ratings) — better
Positive reviews33.3% of reviews75.0% of reviews — better
Number of ratings7260 — better
Update frequencyEvery 6 monthsEvery 6 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.011.1 — better
Further details — not scored
Size31 MB8 MB
Age rating4++4
DeveloperDok LLCPhilip Broder

Customer experience

Eye Chart HD

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews30 reviews
Positive33.3%
Neutral10.0%
Negative56.7%

GLASSES

All ratings260 ratings
Positive95.8%
Neutral2.3%
Negative1.9%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

2 purchases

Eye Chart HD

Subscriptions1
  • Professional Subscription$2.991 Month
One-time1
  • Eye Chart HD Full Version$0.99
None

GLASSES

No in-app purchases

Questions

Is Eye Chart HD free?
Eye Chart HD is free to download, with in-app purchases available.
Is GLASSES free?
GLASSES is free to download, with no in-app purchases.
Which has better reviews, Eye Chart HD or GLASSES?
GLASSES is rated higher. Eye Chart HD averages 4.4 out of 5 from 7 ratings, while GLASSES averages 4.8 from 260 ratings.
Do Eye Chart HD or GLASSES have ads?
Eye Chart HD shows ads; GLASSES does not.
Which is updated more often, Eye Chart HD or GLASSES?
Eye Chart HD ships an update every 6 months, and GLASSES every 6 days. Most recently, Eye Chart HD was updated on November 3, 2026 and GLASSES on November 2, 2026.

Other comparisons