Comparison

Calculate VA vs Sci Med Lingua

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

Head to head
About

Calculate VA

Instantly convert between common visual acuity measurements. This tool is designed for eye care professionals needing to fluidly switch between Snellen, Decimal, logMAR, and ETDRS Letter formats. Get accurate conversions with a single tap.

Highlights
  • Instant visual acuity conversions
  • Supports Snellen 20/20
  • Supports Snellen 6/6
  • Supports Decimal
  • Supports logMAR
  • Supports ETDRS Letters
Features
Read full description

Calculate VA gives you a quick and accurate way to easily convert between common measures of visual acuity. Conversions are made instantly when you enter one of the visual acuity measurements and press "Calculate". Choose from: * Snellen 20 * Snellen 6 * Decimal * logMAR * ETDRS Letters This is useful for any optometrist or ophthalmologist who needs to convert fluidly between all 5 of the common visual acuity measures.

About

Sci Med Lingua

Master medical English with this app designed for professionals, students, and researchers. It uses AI and social networking to enhance vocabulary, pronunciation, and comprehension of medical texts and research. Improve your global medical communication and career prospects.

Highlights
  • Medical English vocabulary expansion
  • Pronunciation enhancement
  • AI/ML powered learning
  • Social networking elements
  • Access to clinical research and publications
  • Competitive learning features
Read full description

Sci Med Lingua – the ultimate mobile app for mastering medical English! Whether you're a medical professional, student or researcher, Sci Med Lingua is designed to help you improve your English language skills in the medical field. Created by practicing doctors, Sci Med Lingua offers a unique blend of advanced tools and techniques to make learning medical English more accessible and engaging. With elements of social networking, competitive learning, and AI/ML technology, this app is designed to keep you motivated and on track. In just one month of daily use, you can expect to see significant improvements in your listening and reading skills, expand your vocabulary by learning 300 new words, enhance your pronunciation, and learn how to use new words in context. But that's not all – by using Sci Med Lingua, you'll also gain access to the latest cutting-edge information on clinical research and scientific publications in English. You'll be able to read foreign guidelines and protocols for various diseases, deliver presentations at international medical conferences, collaborate with foreign medical institutions, publish your scientific discoveries in English, and even participate in foreign internships. Don't let language barriers hold you back from achieving your goals in the medical field – download Sci Med Lingua today and take your medical career to the next level! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Calculate VA1 screens
Sci Med Lingua4 screens

Verdict

The call

The clearest difference is in-app purchases: Calculate VA at none against Sci Med Lingua's 3. Sci Med Lingua's advantage is update cadence (every 9 days vs every 11 months) and iOS requirement (12.0 vs 16.6). On price, rating, review sentiment and ratings volume 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. Sci Med Lingua sells 3 in-app purchases, starting at $4.99 per month. Calculate VA asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Calculate VA against 5.0 for Sci Med Lingua. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Calculate VA ships an update every 11 months, Sci Med Lingua every 9 days. The most recent releases landed on October 26, 2026 and October 20, 2026 respectively.

Scorecard4 real differences · 6 level
Calculate VA versus Sci Med Lingua: the parameters behind the verdict, then further details
ParameterCalculate VASci Med Lingua
PriceFreeFree
Rating5.0 (3 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings3 — better2
Update frequencyEvery 11 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.612.0 — better
Further details — not scored
Size1 MB67 MB
Age rating12+17+
DeveloperDavid KramerAssylzhan Akylbekov

Customer experience

Calculate VA

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Sci Med Lingua

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Calculate VA

No in-app purchases

3 purchases

Sci Med Lingua

Subscriptions3
  • 1 month1 Month trial$4.991 Month
  • 6 months1 Month trial$24.996 Months
  • 12 months14 Days trial$49.991 Year

Questions

Is Calculate VA free?
Calculate VA is free to download, with no in-app purchases.
Is Sci Med Lingua free?
Sci Med Lingua is free to download, with in-app purchases available.
Which has better reviews, Calculate VA or Sci Med Lingua?
Calculate VA and Sci Med Lingua are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.
Do Calculate VA or Sci Med Lingua have ads?
Neither Calculate VA nor Sci Med Lingua shows ads.
Which is updated more often, Calculate VA or Sci Med Lingua?
Calculate VA ships an update every 11 months, and Sci Med Lingua every 9 days. Most recently, Calculate VA was updated on October 26, 2026 and Sci Med Lingua on October 20, 2026.

Other comparisons