Comparison

Lab Values Pro vs Eye Charts

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

Head to head
About

Lab Values Pro

This app provides a clear and structured overview of common laboratory blood values, their standard ranges in both old and SI units, and potential causes for increases or decreases. It's designed for quick navigation and understanding for both medical professionals and laypeople.

Highlights
  • Overview of routine lab parameters
  • Causes of increased/decreased values
  • Standard values in old and SI units
  • Alphabetical and category-based navigation
  • Search bar for specific values
  • Generally understandable information
Features
Currently charting
Read full description

With Laboratory values ​​Pro, you can quickly and easily find out about blood laboratory values.
This laboratory app gives physicians and non-medical professionals a generally understandable, quickly navigable and clearly structured overview of the most important routine laboratory parameters and possible causes of their increase and decrease. The laboratory values ​​can be found alphabetically in menu item A-Z as well as under the respective categories. The standard values ​​are given in both the old units and SI units. The content presented here is for neutral information and general education only and in no case replaced personal consultation, examination or diagnosis by a licensed physician. No medical decision may only be based on results and information of this program - Laboratory Values ​​Pro App. We point out that neither remote diagnosis nor therapy suggestions are made for the individual case. 
For each laboratory value a short information can be queried quickly. The individual brief information is formulated in a generally understandable way and provides an overview of the indication, function and task of the respective laboratory value.
For each laboratory value numerous possible causes of their increase and decrease will be indicated.
Laboratory Pro gives the user an overview of the most important routine laboratory parameters including hematology, differential blood counts, clinical chemistry, blood clotting, Quick, INR, electrolyte balance, tumor markers and blood gas analysis.
In addition to classic scrolling, the program enables quick navigation between laboratory name, abbreviation of laboratory value, standard value, differential diagnostic interpretation of increase and decrease in value (especially for physicians, medical students, interested lay people). An additional search bar allows the targeted search for the desired laboratory value. Category:

     Exhaustion / fatigue
     Hair loss check
     Thyroid check
     trace elements
     Stress check
     Toxic elements
     Atherosclerosis indicators
     Cardiac diseases
     Diabetes check
     Carbohydrate metabolism
     Bone metabolism
     electrolyte balance
     Nierenparamter
     Inflammation paramters
     Iron metabolism
     Leberserologie
     Lipid Metabolism
     hematology

About

Eye Charts

Measure and track distant vision with optically precise optotypes. Supports various eye chart types and custom test distances. Useful for early detection of vision issues and monitoring progression.

Highlights
  • Optically precise optotypes
  • Multiple eye chart types (Snellen, Tumbling E, Landolt C, ETDRS, HOTV, Numbers, Shapes)
  • Customizable test distances (meters and feet)
  • Mirror and Bluetooth keyboard testing modes
  • Manual and auto-scoring test modes
  • Visual acuity progression tracking
  • LogMAR scoring
Read full description

Eye Charts is a vision testing app independently proven most accurate in a peer-reviewed study (JAMA Ophthalmology). Trusted by parents and clinicians to check, record, and track children's vision since 2018. Early detection of myopia allows you to take preventive action, seek medical advice promptly, and prevent pseudomyopia from worsening into myopia or stop nearsightedness from deteriorating further. INDEPENDENTLY EVALUATED ACCURACY Eye Charts was previously published as Visual Acuity Charts and was independently evaluated in a peer-reviewed study published in JAMA Ophthalmology (https://pmc.ncbi.nlm.nih.gov/articles/PMC7809609/). MORE THAN A DIGITAL EYE CHART Unlike paper charts that can fade, warp, or become memorized, Eye Charts presents randomized optotypes for each test. This helps reduce variability when repeating measurements over time. Choose from: • Snellen • ETDRS • Landolt C • Tumbling E • HOTV • Numbers • Shapes Charts use LogMAR-based sizing and support multiple visual acuity notations, including: • Fraction • LogMAR • MAR • Decimal • VAS FLEXIBLE TESTING Test at different distances to suit small rooms, hallways, clinics, schools, or other available spaces. Eye Charts is self-illuminated on iPhone and iPad, so chart visibility is less dependent on ambient room lighting. Screen brightness can be adjusted, including for longer testing distances such as 6 metres. THREE WAYS TO TEST 1. Doctor and patient — in a clinic or at home 2. Self-test with a mirror — wear an eye patch; the effective testing distance is doubled 3. Self-test with a Bluetooth keyboard — from a few meters away SEE TRENDS, NOT JUST SNAPSHOTS Record test results for individual subjects and visualize changes over time with simple graphs. This makes it easier to notice: • Gradual changes in visual acuity • Stability following an intervention • Differences between visits or repeated tests For parents, this provides a convenient way to monitor a child's visual acuity over time. For healthcare professionals, it provides a practical record for routine screening and follow-up. IMPORTANT MEDICAL NOTICE Eye Charts is a visual acuity screening and measurement tool. It does not replace an examination by an optometrist or ophthalmologist. It does not diagnose eye conditions such as strabismus, esotropia, exotropia, hyperopia, or astigmatism. Regular professional eye examinations are recommended, and you should seek professional medical advice if you notice changes in vision.

Screenshots

Lab Values Pro4 screens
Eye Charts4 screens

Verdict

The call

The clearest difference is review sentiment: Eye Charts at 68% against Lab Values Pro's 0%. Eye Charts also leads on update cadence (every 2 months vs every 10 months) and ratings volume (29 vs 3). Lab Values Pro's advantage is rating (4.0 vs 3.5) and price ($0.99 vs $4.99). On ads, in-app purchases and device support 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

Lab Values Pro costs $0.99 and Eye Charts $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Lab Values Pro holds the better App Store score, 4.0 against 3.5. That said, the two scores are not equally well evidenced: Eye Charts has 29 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 0% of Lab Values Pro's written reviews are positive against 68% of Eye Charts's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Lab Values Pro ships an update every 10 months, Eye Charts every 2 months. The most recent releases landed on October 6, 2026 and October 18, 2026 respectively.

Scorecard8 real differences · 3 level
Lab Values Pro versus Eye Charts: the parameters behind the verdict, then further details
ParameterLab Values ProEye Charts
Price$0.99 — better$4.99
Rating4.0 (3 ratings) — better3.5 (29 ratings)
Positive reviews0.0% of reviews67.6% of reviews — better
Number of ratings329 — better
Update frequencyEvery 10 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#198 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size12 MB23 MB
Age rating17+12+
DeveloperDr. Steve Müllerzijian huang

Customer experience

Lab Values Pro

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Eye Charts

All ratings29 ratings
Positive58.6%
Neutral6.9%
Negative34.5%
Written reviews37 reviews
Positive67.6%
Neutral2.7%
Negative29.7%

In-app purchases

None

Lab Values Pro

No in-app purchases

None

Eye Charts

No in-app purchases

Questions

Is Lab Values Pro free?
Lab Values Pro costs $0.99, with no in-app purchases.
Is Eye Charts free?
Eye Charts costs $4.99, with no in-app purchases.
Which has better reviews, Lab Values Pro or Eye Charts?
Lab Values Pro is rated higher. Lab Values Pro averages 4.0 out of 5 from 3 ratings, while Eye Charts averages 3.5 from 29 ratings.
Do Lab Values Pro or Eye Charts have ads?
Neither Lab Values Pro nor Eye Charts shows ads.
Which is updated more often, Lab Values Pro or Eye Charts?
Lab Values Pro ships an update every 10 months, and Eye Charts every 2 months. Most recently, Lab Values Pro was updated on October 6, 2026 and Eye Charts on October 18, 2026.

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