Comparison

Smart Optometry vs DryEyeRhythm

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

Head to head
About

Smart Optometry

This app offers eye care professionals a suite of 15 interactive and precise digital eye exams for patient screening and testing. It simplifies the examination process with clear guidelines, fast execution, and automated calculations, supporting a more efficient and accurate diagnostic workflow.

Highlights
  • 15 interactive digital eye exams
  • Automated calculation and diagnosis
  • Multi-language support
  • Vertex and visual acuity calculators
  • Simple and fast user interface
  • Precise and reliable results
Features
Read full description

Smart Optometry is #1 choice for eye care professionals around the world! Give your patients’ best care with 15 FREE INTERACTIVE, PRECISE and SIMPLE eye exams in 9 languages. Join 100.000+ eye care specialists using Smart Optometry for eye examinations! Why should your customers undergo the same tests they always go through when they have their eyes tested? Why should this advanced industry stick with old and outdated practices? Smart Optometry includes 15 TESTS are available for FREE: – Colour Vision – Contrast – Visual Acuity – Worth Four Dot – Schober – OKN Stripes – Flourescin Light – Red Desaturation – Hirschberg – Accommodation – Duochrome – Aniseikonia – Amsler Grid – MEM Retinoscopy – Visual Acuity + To help you make your work simpler, we also included 2 CALCULATORS: – Vertex Conversion – Visual Acuity Conversion Because we know language barrier can be a problem, we localised our application to 11 LANGUAGES: English, Spanish, German, French, Russian, Italian, Polish, Norwegian, Czech, Croatian and Slovenian! Want your language added? Let us know at: info@smart-optometry.com. Still not convinced? Read what sets us apart! Our solution is SIMPLE to use! Eye screening and testing shouldn’t be difficult and inconvenient for neither practitioner or customer! Smart Optometry application is very simple to use: just select the test, read through short guidelines for performing the test, execute it and let our application give you the basic diagnosis – final result or point you in the direction of possible problems that need more thorough examinations! Tests are FAST! While you are filling out paperwork for a patient, he or she can already test his or her eyesight with basic tests provided by Smart Optometry application. There is no logistics involved in performing the tests: just pick up your iPad and test-away! Results provided are PRECISE and reliable! Eye testing and screening often requires eye-care professionals to make calculations – giving the room for error. Eliminate this risk with precise calculations and interpretations done by our Smart Optometry application. Our tests are as precise if not more than the currently used on-the-wall testing equipment. All tests are INTERACTIVE and fun! Wouldn’t it be easier to let patients do the things you ask them, rather than try to explain what they see to you? Smart Optometry application is uniquely interactive: user presses buttons, draws on the screen and this way provides precise results – while having fun! Interactive handling with the Smart Optometry application also enables it to give you result interpretations.

About

DryEyeRhythm

Assess your dry eye condition with a quick smartphone check. Track daily changes, lifestyle factors, and contribute to university research. Understand potential links between dry eye, headaches, and stiff shoulders.

Highlights
  • 5-minute dry eye measurement
  • Lifestyle correlation tracking
  • Dry eye status map
  • Contribution to university research
  • Visual results on graphs and calendars
  • Privacy-protected data
Features
Read full description

Your headache and stiff shoulders may be caused by dry eye. "Dry Eye Rhythm" is an application that you can do dry eye check in 5 minutes using the smartphone. Measurement results can be confirmed with your own eyes, as well as for dry eye research by Juntendo University ophthalmology. [Purpose of dry eye rhythm] It is estimated that there are 22 million people in Japan and 1 billion people in the world, the most common eye disease is dry eye. However, many people have not yet diagnosed, causing eye quality, headache, headache, lowering subjective visual acuity, stiff shoulder, etc. which is a cause of lowering quality of life. If we can gather information as accurate as possible about fluctuations of symptoms from usual time, we should be able to prevent it before symptoms arise and to speed up recovery. In this way, "dry eye rhythm" was created from the desire to deliver eye health to everyone. [What you can do with dry eye rhythm] 1. Easy dry eye measurement in 5 minutes, you can check your dry eye score. 2. By entering lifestyle such as stress and sleep time, you can check correlation between daily dry eye score and lifestyle on your own. 3. You can check the user's dry eye status on dry eye map. 4. Anonymized big data will be useful for dry eye research by Juntendo University ophthalmology. [How to use the application] 1. After agreeing to the research, enter basic information. 2. You can measure your own dry eye score with a camera's blink check and questionnaire input. (1 day a day, continuous measurement for 7 days is recommended) 3. Enter your lifestyle such as sleeping time, stress, time you saw the monitor. (1 day a day, continuous measurement for 7 days is recommended) 4 The results of the measurement can be seen on the graph and calendars, and you can check the change in dry eye score and the correlation with your lifestyle with your own eyes. [About safety] - Privacy Because collected data does not have information that leads to the identification of an individual, even if it leaks by chance, it will not lead to personal rights or property damage. Also, withdrawal of consent for research can be withdrawn at any time. - Data handling Research results obtained through cooperation and collected data may be published in academic presentations or academic journals in order to be useful for early detection, diagnosis and treatment of each disease. In addition, data collected for this research may be used for another research or development. - Notices This application was developed exclusively for collecting data in clinical research and is not intended for other purposes. We can not compensate for any health damage or equipment damage due to research participation. Because the measurement result by this application is not a doctor's diagnosis, if you have a symptom to worry please get a doctor's diagnosis. [About the use of healthcare application information] This application confirms the permission of the permission for the healthcare application interlock at the first question. We will confirm whether you can use the HealthKit framework provided by Apple to obtain the step count value registered in the "Healthcare" application on your iPhone. Step values ​​are automatically obtained for the study. If you do not allow the transmission of this information, you can use the app without acquiring the information by proceeding without permission on the confirmation screen.

Screenshots

Smart Optometry4 screens
DryEyeRhythm4 screens

Verdict

The call

The clearest difference is review sentiment: Smart Optometry at 42% against DryEyeRhythm's 6%. Smart Optometry also leads on device support (3 vs 1) and iOS requirement (13 vs 16.0). DryEyeRhythm's advantage is in-app purchases (none vs 10). On price, update cadence and ads 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. Smart Optometry sells 10 in-app purchases, starting at $2.99 per month. DryEyeRhythm asks for nothing beyond the download.

UpkeepUpdate frequency

Smart Optometry ships an update every 4 months, DryEyeRhythm every 3 months. The most recent releases landed on October 15, 2026 and September 30, 2026 respectively.

Scorecard5 real differences · 5 level
Smart Optometry versus DryEyeRhythm: the parameters behind the verdict, then further details
ParameterSmart OptometryDryEyeRhythm
PriceFreeFree
Rating4.4 (529 ratings) — better—
Positive reviews42.3% of reviews — better5.6% of reviews
Number of ratings529 — better—
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13 — better16.0
Further details — not scored
Size28 MB24 MB
Age rating12+17+
DeveloperHundred Vision d.o.o.順天堂大学

Customer experience

Smart Optometry

All ratings529 ratings
Positive83.9%
Neutral4.5%
Negative11.5%
Written reviews52 reviews
Positive42.3%
Neutral7.7%
Negative50.0%

DryEyeRhythm

Written reviews18 reviews
Positive5.6%
Neutral11.1%
Negative83.3%

Bugs and requests

Smart Optometry

Reported bugs

5 issues
  • App crashes on startup
  • App closes automatically after login
  • App stops working after update
  • Tests demand payment for Pro version
  • Visual acuity unit converter plus button not working

Requested features

5 requests
  • Update visual acuity unit converter plus button
  • Add inches option for measurement
  • Provide explanations for test procedures and expected results
  • Make Arabic language available
  • Allow calibration of acuity test for different distances

DryEyeRhythm

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Smart Optometry

Subscriptions2
  • PRO Monthly Subscription$2.991 Month
  • PRO Yearly Subscription$22.991 Year
One-time8
  • Visual Acuity + Test$1.99
  • Red Desaturation Test$1.99
  • Generous Tip$4.99
Show 5 more
  • Generous Tip!$4.99
  • Smart Optometry PRO$9.99
  • PRO Bundle$9.99
  • Massive Tip!$9.99
  • Amazing Tip!$14.99
None

DryEyeRhythm

No in-app purchases

Questions

Is Smart Optometry free?
Smart Optometry is free to download, with in-app purchases available.
Is DryEyeRhythm free?
DryEyeRhythm is free to download, with no in-app purchases.
Do Smart Optometry or DryEyeRhythm have ads?
Neither Smart Optometry nor DryEyeRhythm shows ads.
Which is updated more often, Smart Optometry or DryEyeRhythm?
Smart Optometry ships an update every 4 months, and DryEyeRhythm every 3 months. Most recently, Smart Optometry was updated on October 15, 2026 and DryEyeRhythm on September 30, 2026.

Other comparisons