Comparison

MRF Glaucoma Lite vs Calculate VA

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

Head to head
About

MRF Glaucoma Lite

This app allows patients, doctors, and researchers to test visual fields for conditions like glaucoma. It detects abnormalities centrally and peripherally, offering various test modules and longitudinal comparison of results.

Highlights
  • Full visual field testing
  • Macular region testing
  • Screening test
  • Longitudinal comparison
  • Data export
  • Online result portal
Features
Read full description

** This version allows maximum number of field saves to 8 times. This version has limited functionality and for demonstration purpose. ******* Melbourne Rapid Fields (MRF) is designed to be used by patients, doctors and researchers to test users' visual field. Problems in the visual field occurs in eye conditions such as glaucoma, retinal disease and other optic neuropathies, as well as in neurological conditions (stroke, MS). MRF Glaucoma has been designed to detect abnormalities in the visual field both centrally and in the periphery (up to 30 degrees from central fixation point). MRF is a TGA (Aus) registered Perimeter. MRF Glaucoma is at present designed to be used only by clinicians (ophthalmologist, optometrists) or vision researchers or by patients under the direct guidance of the aforementioned professionals. The use of the software by patients without the guidance of clinicians or vision researcher is not supported. This software is not to be used for self diagnosis vision conditions. It is not a substitute for formal eye testing by an ophthalmologist or optometrist. Modules within the MRF Glaucoma application include: 1. Full threshold test for entire visual field up to 30 degree from fixation. (average test time 3-4 minutes) 2. Full threshold test for macular region. (average test time 2 minutes) 3. Screening test for entire visual field up to 30 degrees (average test time 1.5-2 minutes) Longitudinal comparison of test results is performed at the end of each test. Test results are stored and can be accessed through an online portal. Test results can be exported as comma separated values (.CVS) format and imported into Excel for detailed point-to-point analysis (for vision research purpose). Features: 1. Full field test 2. Central field only test (primarily for neurophthalmic use) 3. Macular test 4. Full threshold test and screening test 5. Respond to spots either using screen touch or Bluetooth Keyboard. 6. Longitudinal test result comparison with progression analysis. 7. Saving of test results under multiple testing accounts. 8. Automatic saving of data online and access data via online portal. 9. Calculation of Mean Deviation, Pattern Deviation and Visual Capacity percentage. 10. Recording of false positives, false negatives and fixation losses. 11. Export data in CVS form. 12. Link patient accounts to clinician account online. MRF is developed by Dr George Kong, an ophthalmologist with subspecialty interest in glaucoma (and developer of first and popular prototype VisualField easy app that was supported by AMP Tomorrow Maker Foundation) and Prof Algis Vingrys, vision scientist and optometrist with 20+ years of research and clinical experience.

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.

Screenshots

Calculate VA1 screens

Verdict

The call

The clearest difference is update cadence: MRF Glaucoma Lite at every 2 months against Calculate VA's every 11 months. MRF Glaucoma Lite also leads on iOS requirement (9.0 vs 16.6). Calculate VA's advantage is ratings volume (3 vs 1). On price, rating, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for MRF Glaucoma Lite against 5.0 for Calculate VA. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

UpkeepUpdate frequency

MRF Glaucoma Lite ships an update every 2 months, Calculate VA every 11 months. The most recent releases landed on October 14, 2026 and October 26, 2026 respectively.

Scorecard3 real differences · 7 level
MRF Glaucoma Lite versus Calculate VA: the parameters behind the verdict, then further details
ParameterMRF Glaucoma LiteCalculate VA
PriceFreeFree
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews—100.0% of reviews
Number of ratings13 — better
Update frequencyEvery 2 months — betterEvery 11 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPadiPhone, iPad — better
Requires iOS9.0 — better16.6
Further details — not scored
Size31 MB1 MB
Age rating12+12+
DeveloperGlance Optical Pty LtdDavid Kramer

Customer experience

MRF Glaucoma Lite

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Calculate VA

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

In-app purchases

None

MRF Glaucoma Lite

No in-app purchases

None

Calculate VA

No in-app purchases

Questions

Is MRF Glaucoma Lite free?
MRF Glaucoma Lite is free to download, with no in-app purchases.
Is Calculate VA free?
Calculate VA is free to download, with no in-app purchases.
Which has better reviews, MRF Glaucoma Lite or Calculate VA?
MRF Glaucoma Lite and Calculate VA are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do MRF Glaucoma Lite or Calculate VA have ads?
Neither MRF Glaucoma Lite nor Calculate VA shows ads.
Which is updated more often, MRF Glaucoma Lite or Calculate VA?
MRF Glaucoma Lite ships an update every 2 months, and Calculate VA every 11 months. Most recently, MRF Glaucoma Lite was updated on October 14, 2026 and Calculate VA on October 26, 2026.

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