Comparison

iTorsion vs Strab Tables

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

Head to head
About

iTorsion

This medical app simplifies diagnosing ocular torsion using just a smartphone and red/green glasses. It offers greater precision than traditional methods, providing extorsion and intorsion measurements for each eye after a patient test.

Highlights
  • Ocular torsion diagnosis
  • Smartphone-based testing
  • Red/green glasses compatibility
  • Precise measurement
  • Extorsion and intorsion calculation
  • Customizable color values
Features
Read full description

iTorsion seeks to make the diagnosis of ocular torsion a simpler and easier process for both doctors and their patients. While traditional diagnostic methods require using special equipment (e.g., Double Maddox Rod) that often lacks precision, iTorsion only requires a smartphone and red/green glasses leading to much greater precision. This application is intended for use by doctors, and not for self-diagnosis by patients. Usage of the application will require standard red-green glasses to filter out colors from each eye. The specific color values can be tailored in the app to fit the specific requirements for the display and the glasses. The smartphone should be held on a level surface as the patient interacts with it. The patient should see predominantly one of the lines out of each eye, and will be asked to make the lines parallel with each other, as well as to the ground. After finishing the test, a screen will indicate the degree of extorsion and intorsion for each of the patient’s eyes.

About

Strab Tables

Create, customize, and share surgical dosing tables for strabismus procedures. Supports esotropia, exotropia, vertical deviations, and other custom surgical types. Facilitates easy information sharing among medical professionals and trainees.

Highlights
  • Customizable surgical dosing tables
  • Support for esotropia, exotropia, and vertical deviations
  • Create tables for custom procedures
  • Share tables with colleagues
  • Information sharing for trainees
Features
Read full description

Store and share fully customizable strabismus surgical dosing tables and more. Users are able to create and modify tables for surgery for esotropia, exotropia, and vertical deviations. There is also support for storing any other custom type of procedure as well. Tables can be shared with other users allowing easy access to information sharing amongst colleagues and trainees.

Screenshots

iTorsion3 screens
Strab Tables4 screens

Verdict

The call

The clearest difference is update cadence: iTorsion at every 3 months against Strab Tables's every 14 months. iTorsion also leads on device support (3 vs 1) and iOS requirement (10.3 vs 17.0). On price, rating, ratings volume 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. 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 iTorsion against 5.0 for Strab Tables. Both are backed by a comparable volume of ratings — 6 and 4 respectively.

UpkeepUpdate frequency

iTorsion ships an update every 3 months, Strab Tables every 14 months. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.

Scorecard3 real differences · 7 level
iTorsion versus Strab Tables: the parameters behind the verdict, then further details
ParameteriTorsionStrab Tables
PriceFreeFree
Rating5.0 (6 ratings)5.0 (4 ratings)
Positive reviews100.0% of reviews—
Number of ratings6 — better4
Update frequencyEvery 3 months — betterEvery 14 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS10.3 — better17.0
Further details — not scored
Size17 MB2 MB
Age rating17+12+
DeveloperRegents of the University of MinnesotaPatrick Burke

Customer experience

iTorsion

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Strab Tables

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

iTorsion

No in-app purchases

None

Strab Tables

No in-app purchases

Questions

Is iTorsion free?
iTorsion is free to download, with no in-app purchases.
Is Strab Tables free?
Strab Tables is free to download, with no in-app purchases.
Which has better reviews, iTorsion or Strab Tables?
iTorsion and Strab Tables are both rated 5.0 out of 5 on the App Store, from 6 and 4 ratings respectively.
Do iTorsion or Strab Tables have ads?
Neither iTorsion nor Strab Tables shows ads.
Which is updated more often, iTorsion or Strab Tables?
iTorsion ships an update every 3 months, and Strab Tables every 14 months. Most recently, iTorsion was updated on October 12, 2026 and Strab Tables on October 2, 2026.

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