Comparison

Biotech Calculators vs 9 Gaze

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

Head to head
About

Biotech Calculators

Features
Read full description

Biotech Calculators Mobile app: Download mobile app Biotech Calculators to calculate Eyecryl Toric as well as Eyecryl Actv Toric IOLs for your patients. Simply enter the patient’s pre-op data in your desired Eyecryl IOL option and get the precise IOL model for your patient. Biotech Calculators is designed to help eye care practitioners to serve with precise IOL calculations to provide best patient out come after cataract surgery. Once the application is downloaded and logged in, it works offline as well.

About

9 Gaze

This app helps document eye motility and strabismus in nine cardinal positions. It offers an on-screen guide for consistent eye positioning and automatically creates composite images for easy exporting. Users can add strabismus measurements and email or save images for medical records.

Highlights
  • Document eye motility and strabismus
  • On-screen guide for eye positioning
  • Automatic composite image creation
  • Add strabismus measurements
  • Selfie or standard mode
  • Email or save images
Features
Read full description

9 Gaze is an easy, quick, and efficient way to document eye motility and strabismus in the nine cardinal positions of gaze (and 2 head tilts, abnormal head position). The app provides an on-screen guide for eye positioning to assist with image consistency through all photographs. 9Gaze app automatically creates a composite image of the photographs for easy exporting. Designed for a touch-screen interface, you can also quickly add strabismus measurements to your photograph or as a stand-alone image. You can email the images to yourself for importing into your record or save to your camera roll. Features: - Selfie mode or standard mode - On-screen guide for placement of eyes (with autocrop) - Automatic creation of the composite image of all 9(+2) positions of gaze - Ability to skip gaze directions (or skip to end) - Re-take any picture - Turn flash on or off - Landscape and portrait modes - Ability to document name, ID number, date of birth, and date of picture Save time with 9 Gaze! Disclaimer: No information or photos are ever saved within the app. It is the user's responsibility to protect any and all protected health information (PHI) obtained by the user. If you choose to save images to camera roll, it is highly suggested to encrypt your phone and turn off iCloud photo backup. When emailing photos, please make sure your email is HIPAA secure. This is not a medical device. Do not use app to diagnose or treat any medical conditions.

Screenshots

Biotech Calculators4 screens
9 Gaze4 screens

Verdict

The call

The clearest difference is update cadence: 9 Gaze at every 2 months against Biotech Calculators's every 5 months. 9 Gaze also leads on iOS requirement (13.0 vs 15.0). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Biotech Calculators ships an update every 5 months, 9 Gaze every 2 months. The most recent releases landed on October 26, 2026 and November 2, 2026 respectively.

Scorecard2 real differences · 8 level
Biotech Calculators versus 9 Gaze: the parameters behind the verdict, then further details
ParameterBiotech Calculators9 Gaze
PriceFreeFree
Rating—4.6 (22 ratings) — better
Positive reviews—85.7% of reviews
Number of ratings—22 — better
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size124 MB36 MB
Age rating12+12+
DeveloperBiotech Vision CareSee Vision, LLC

In-app purchases

None

Biotech Calculators

No in-app purchases

None

9 Gaze

No in-app purchases

Questions

Is Biotech Calculators free?
Biotech Calculators is free to download, with no in-app purchases.
Is 9 Gaze free?
9 Gaze is free to download, with no in-app purchases.
Do Biotech Calculators or 9 Gaze have ads?
Neither Biotech Calculators nor 9 Gaze shows ads.
Which is updated more often, Biotech Calculators or 9 Gaze?
Biotech Calculators ships an update every 5 months, and 9 Gaze every 2 months. Most recently, Biotech Calculators was updated on October 26, 2026 and 9 Gaze on November 2, 2026.

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