Comparison

ImpressionIST® vs Visucat

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

Head to head

About

ImpressionIST®

Features

Read full description

This app provides the possibility to remote control all features of the Rodenstock ImpressionIST® via an iPad. Key features: - Find any ImpressionIST® device on the same network as your iPad via its hostname or IP address. - Save desired device as default one to automatically connect to it when the app starts. - Display the ImpressionIST® Web app hosted on corresponding ImpressionIST® device. This gives you full control of the device: manage your customers, perform measurements, and evaluate them. Please note that products and features may vary from country to country (Please contact your local Rodenstock subsidiary for further information).

About

Visucat

Features

Read full description

Test charts for testing the near vision, that are displayed on a tablet PC using the VisucatControl app can now be controlled by the examiner using the Visucat-N-Control app on a second device. Requirement: VISUCAT vision testing device

Screenshots

Visucat1 screens

Verdict

The call

The clearest difference is update cadence: ImpressionIST® at every 3 months against Visucat's every 74 months. Visucat's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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

ImpressionIST® ships an update every 3 months, Visucat every 74 months. The most recent releases landed on September 5, 2026 and May 13, 2026 respectively.

Scorecard2 real differences · 4 level

ImpressionIST® versus Visucat: the parameters behind the verdict, then further details
Parameter	ImpressionIST®	Visucat
Price	Free	Free
Update frequency	Every 3 months — better	Every 74 months
Ads	No	No
In-app purchases	No	No
Devices	iPad	iPhone, iPad, iPod — better
Requires iOS	11.0	11.0
Further details — not scored
Size	22 MB	27 MB
Age rating	4+	4+
Developer	Rodenstock GmbH	IBK Systeme GmbH

In-app purchases

None

ImpressionIST®

No in-app purchases

None

Visucat

No in-app purchases

Questions

Is ImpressionIST® free?

ImpressionIST® is free to download, with no in-app purchases.

Is Visucat free?

Visucat is free to download, with no in-app purchases.

Do ImpressionIST® or Visucat have ads?

Neither ImpressionIST® nor Visucat shows ads.

Which is updated more often, ImpressionIST® or Visucat?

ImpressionIST® ships an update every 3 months, and Visucat every 74 months. Most recently, ImpressionIST® was updated on September 5, 2026 and Visucat on May 13, 2026.