blueCompact vs Ernst
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
blueCompact
Manage your building's access control system conveniently and securely from your smartphone. Program and manage keys, cylinders, and readers, and monitor all locking events with ease. Ideal for smart homes and small businesses.
- Easy smartphone control
- Manage up to 99 keys and 25 cylinders
- Block lost keys instantly
- Monitor all locking events
- Create custom time profiles for access
- Remote authorization for doors
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The blueCompact app enables easy control of the new Winkhaus blueCompact locking system. This innovative technology makes access control management for your building more convenient, more flexible, clearer and more secure. blueCompact is ideal for smart homes and for small businesses such as medical practices, lawyers' offices and agencies. The app is available free of charge after purchasing a blueCompact locking system. It is innovative to use and offers a wide range of options for programming and managing keys, cylinders and wall readers. Start living smarter today and discover the versatility of this unique locking system.Β The blueCompact app offers you: EASY OPERATION Control the entire locking system comfortably and conveniently from your smart phone or tablet. MANAGEMENT OF EVERYTHING Organise up to 99 keys, up to 25 cylinders or wall readers and all access authorisations with just one app. BLOCKING KEYS Lost keys can be deactivated immediately. This eliminates the expense of replacing cylinders. PRECISE MONITORING View a list of all locking events. Keep an overview of the times when your family members or employees come and go. CREATING AND MANAGING TIME PROFILES React flexibly: Who can open which door and when? You can configure the locking authorisations with individual times for each individual key depending on the requirements. This enables you to configure the days and times at which people can access selected rooms. CONTACTLESS DETECTION OF WALL READERS Open motorised locks, roller doors, car park barriers etc. with the blueCompact wall reader. You decide which keys have an authorisation for temporary opening or for a permanent release. It is also possible to set a day-specific time at which the permanent release is deactivated automatically. REMOTE AUTHORISATION Issue locking authorisations remotely when you cannot open the door in person. EASY TO LEARN Familiarise yourself easily with the system controls. Learn intuitively with the user-friendly video instructions for every menu item. SYSTEM REQUIREMENTS Unfortunately, we must exclude the use of devices afflicted with malware in order to guarantee our high security standards for the blueCompact app. LICENSING CONDITIONS By downloading the software and/or installing the software, you agree to the validity of these licensing conditions. The licensing conditions are available to view at https://www.bluecompact.com/en/lizenzbedingungen.html.
Ernst
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Request prescriptions digitally β with ERNST With ERNST, your prescription requests are quick, easy and convenient. You can request prescriptions digitally directly from your smartphone or tablet and reorder them easily at any time. With ERNST, there is no login. All your data remains exclusively on your smartphone or tablet. There is no server, no cloud and no tracking. Your data is not stored centrally or collected for analysis or advertising purposes. Enter your personal details or the details of your family members for whom you want to request prescriptions once. Then add the name and email address of your doctor as well as the medications you take regularly. And you're ready to go: select medications with one click, create a request and send it digitally by email β simple, quick and convenient with ERNST. It's that easy: - Add people: Save your name, date of birth and address β or enter the details of your family members. - Manage doctors: Add the name and email address of your doctor once. - Enter medications: Enter the medications you need regularly once. - Send request: Whether you need a single medication or your entire long-term medication: Simply select the desired medications by clicking. The app automatically creates a finished email draft that you can review and send directly to your doctor. - Receive prescription: Your doctor will provide you with the prescription as usual β for example by email, SMS or for pickup at the practice. Your data stays with you. Privacy is at the heart of things: The app works completely locally on your device. Your personal data is not transmitted to our own servers or stored in a cloud by the app. There is no tracking and no account requirement. All patient-relevant data is only transmitted by email to your trusted doctor.
Screenshots
Verdict
The clearest difference is update cadence: Ernst at every 3 days against blueCompact's every 3 months. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
blueCompact ships an update every 3 months, Ernst every 3 days. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.
| Parameter | blueCompact | Ernst |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | β |
| Update frequency | Every 3 months | Every 3 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | β |
| Devices | iPhone, iPod | iPhone, iPad, iPod β better |
| Requires iOS | 14.0 β better | 15.5 |
| Further details β not scored | ||
| Size | 61 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Aug. Winkhaus SE | VALENTIN STEINWANDTER |
In-app purchases
blueCompact
No in-app purchases
Ernst
No in-app purchases









