Comparison

ZEISS Z Source vs Sensitivity Tests

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

Head to head
About

ZEISS Z Source

Features
Read full description

The ZEISS "Z Source App" is an intuitive content activation platform for Eye Care Professionals (ECPs.) Z Source explains lens product options, diagnostic tools, and equipment features and benefits tied to real-life eye care solutions to show and educate your vision customers. This empowering user-friendly app tool makes viewing and finding content incredibly easy, and enables you to, present, share, and measure your goals along the way. Simple and easy to use, this app let’s you present supported materials with ease and share them with your customers instantly. Helps you plan and prepare for customer visits. Instantly lets you present and explain complex topics through video and presentation materials. Allows’ you to share feedback on available materials and make annotations on marketing materials. Helps you keep track of your business needs with detailed analytics. All materials are always up-to-date with live sync capabilities at the touch of a button.

About

Sensitivity Tests

Features
Read full description

The first vision sensitivity measurements that can help eye care professionals to measure the sensitivity score of their patients, which will be used as a unique personalization parameter for Nikon's latest lenses and will provide a unique design according to each visual preference. The tests work by showing the participant images with different levels of bluriness and asking him to choose the image where the letters start to be defined. These tests determine the unique vision sensitivity scores for far and near vision.

Verdict

The call

The clearest difference is update cadence: Sensitivity Tests at every 5 weeks against ZEISS Z Source's every 8 months. Sensitivity Tests also leads on iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

ZEISS Z Source ships an update every 8 months, Sensitivity Tests every 5 weeks. The most recent releases landed on September 11, 2026 and September 18, 2026 respectively.

Scorecard2 real differences Β· 4 level
ZEISS Z Source versus Sensitivity Tests: the parameters behind the verdict, then further details
ParameterZEISS Z SourceSensitivity Tests
PriceFreeFree
Update frequencyEvery 8 monthsEvery 5 weeks β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPadiPad
Requires iOS14.012.0 β€” better
Further details β€” not scored
Size110 MB105 MB
Age rating4+4+
Developerbigtincan mobile pty ltdNikon Optical USA

In-app purchases

None

ZEISS Z Source

No in-app purchases

None

Sensitivity Tests

No in-app purchases

Questions

Is ZEISS Z Source free?
ZEISS Z Source is free to download, with no in-app purchases.
Is Sensitivity Tests free?
Sensitivity Tests is free to download, with no in-app purchases.
Do ZEISS Z Source or Sensitivity Tests have ads?
Neither ZEISS Z Source nor Sensitivity Tests shows ads.
Which is updated more often, ZEISS Z Source or Sensitivity Tests?
ZEISS Z Source ships an update every 8 months, and Sensitivity Tests every 5 weeks. Most recently, ZEISS Z Source was updated on September 11, 2026 and Sensitivity Tests on September 18, 2026.

Other comparisons