Comparison

REDCap Mobile App vs ZEISS Connect

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

Head to head
About

REDCap Mobile App

Collect data offline for your REDCap projects. Download your project securely, gather information on your device, and sync it back to the server. Supports text, photos, videos, signatures, and audio.

Highlights
  • Offline data collection
  • Secure project download
  • Multi-user interface
  • Support for photos, videos, audio, and signatures
  • Activity logging for audit purposes
  • Participant data entry restriction
Features
Read full description

Collect your REDCap data in an offline environment in the REDCap mobile app, and then sync your data back to your project on a REDCap server. REDCap is a web application, which requires the Internet to be used, but the REDCap mobile app allows for offline data collection for your REDCap projects. You can create your project in REDCap, securely download your project to the REDCap mobile app on your iPad or iPhone, collect data on the device (with or without an Internet connection), and then securely send your data back to your project on a REDCap server. Features • Multi-user interface with secure login that allows each user account to collect data for multiple REDCap projects in the app. • In addition to text and structured data, you can store and transmit photos, videos, signatures, and audio to REDCap. • When collecting data in the app from a participant, for security purposes you can easily restrict access to the rest of the app as they enter their data. • All user activity in the app is logged for audit purposes. The full logging history can be sent to your project on the REDCap server. Who is the REDCap Mobile App for? In order to use the REDCap Mobile App, REDCap must be installed on your institution’s server and must be at version 6.5.0 or higher. The REDCap Mobile App is designed to fit the following scenarios: • A REDCap project that needs data to be collected without any Internet access available. • A REDCap project that needs data to be collected with sporadic Internet access. If mobile devices are desired for use in REDCap data collection, and if WiFi or cellular Internet is amply available, then it is suggested to use the REDCap mobile web view that is available on the REDCap server, which provides real-time access to data. What is REDCap? REDCap is a mature, secure web application for building and managing online surveys and databases, and it is used by hundreds of thousands of users around the world (http://projectredcap.org). Before setting up a REDCap project in the app, you must already have a user account on a REDCap server hosted by a participating REDCap partner institution. If you belong to an institution that does not have REDCap, please visit http://projectredcap.org/participate.php to learn how to get REDCap where you are. What are some limitations of this app? The REDCap mobile app runs in conjunction with the REDCap web application software. You must already have a REDCap user account and project on a REDCap server before being able to download the project to the app. The app cannot function or stand independently without a REDCap server.

About

ZEISS Connect

This application connects to a surgical microscope to streamline documentation workflows. It allows for patient communication, image and video capture, editing, and management. The app supports controlling microscope settings and integrating with archiving solutions.

Highlights
  • Wireless surgical microscope connection
  • Patient communication and education
  • Standardized video/image documentation
  • Patient data management
  • Image and video editing
  • Microscope illumination and camera control
  • Archiving solution integration
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ZEISS Connect runs on iPad and connects to a surgical microscope wirelessly for: - Communicating and educating patients, assistants and peers - Standardizing video and image documentation workflows - Patient management - Optimizing settings for recording videos and images - Editing videos and images - Controlling illumination and camera on the microscope - Push and pull patient data from an archiving solution (DICOM/NAS/ Sidexis 4) The app is NOT aimed for: - Replacing patient information systems / picture archiving systems (PACS) - Providing true to reality live images that can be used for diagnostic purposes - Providing measurements on which decisions can be based Intended Use: ZEISS Connect connects with the ZEISS EXTARO 300 model of the surgical microscope. This mobile application is intended to be used for supporting the documentation workflow in combination with a connected microscope. The app helps to acquire, display, edit, store and distribute images and videos. In addition, illumination and camera settings of the connected microscope can be controlled from within the app. Information captured and stored by the app are for viewing and reference purpose only and are not intended for primary diagnosis.

Screenshots

REDCap Mobile App2 screens

Verdict

The call

The clearest difference is rating: REDCap Mobile App at 4.5 against ZEISS Connect's 3.0. REDCap Mobile App also leads on update cadence (every 3 weeks vs every 4 months) and device support (3 vs 1). On price, ratings volume, ads and in-app purchases 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

REDCap Mobile App holds the better App Store score, 4.5 against 3.0. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

UpkeepUpdate frequency

REDCap Mobile App ships an update every 3 weeks, ZEISS Connect every 4 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard3 real differences · 7 level
REDCap Mobile App versus ZEISS Connect: the parameters behind the verdict, then further details
ParameterREDCap Mobile AppZEISS Connect
PriceFreeFree
Rating4.5 (4 ratings) — better3.0 (2 ratings)
Positive reviews25.0% of reviews—
Number of ratings4 — better2
Update frequencyEvery 3 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS15.015.0
Further details — not scored
Size26 MB183 MB
Age rating4+17+
DeveloperVanderbilt University Medical CenterCarl Zeiss AG

Customer experience

REDCap Mobile App

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive25.0%
Neutral25.0%
Negative50.0%

ZEISS Connect

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

REDCap Mobile App

No in-app purchases

None

ZEISS Connect

No in-app purchases

Questions

Is REDCap Mobile App free?
REDCap Mobile App is free to download, with no in-app purchases.
Is ZEISS Connect free?
ZEISS Connect is free to download, with no in-app purchases.
Which has better reviews, REDCap Mobile App or ZEISS Connect?
REDCap Mobile App is rated higher. REDCap Mobile App averages 4.5 out of 5 from 4 ratings, while ZEISS Connect averages 3.0 from 2 ratings.
Do REDCap Mobile App or ZEISS Connect have ads?
Neither REDCap Mobile App nor ZEISS Connect shows ads.
Which is updated more often, REDCap Mobile App or ZEISS Connect?
REDCap Mobile App ships an update every 3 weeks, and ZEISS Connect every 4 months. Most recently, REDCap Mobile App was updated on November 1, 2026 and ZEISS Connect on November 2, 2026.

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