Blaise vs Contradict
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Blaise
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Blaise is a powerful and flexible software package used worldwide for statistical and scientific research. The software is developed and maintained by Statistics Netherlands. This app can be used for both online and offline surveys. For online surveys it is required to have an internet connection for the duration of the survey, since the survey is running on a Blaise server park in this case. The app sends the answers to the questions to the server and the server calculates a response based on the given answers and the rules and checks that have been defined for the survey. The response is sent back to the app and displayed to the user. It is also possible to run a Blaise 5 survey offline. In order to do this you first need to download a survey package to the device. The app has the ability to do this. Once the survey is installed on your device, you don't need an internet connection any more to run the survey; the Blaise rules- and checking mechanism will then be performed on the device. The collected data is stored in a secure location on the device and can be uploaded to the server once the device is online. Manipula Dialogs applications (like CMA) are also fully supported by the app.
Contradict
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Why would you want an app that disagrees with you all the time? Good question. Being disagreed with is definitely not a pleasant feeling. But I firmly believe that challenging our own views is a great way to keep our minds open and get closer to the truth. With that in mind, the Contradict app is designed to make disagreement as good as possible. For example, all contradictions will have Wikipedia links, so you can dive into a topic with just a tap.
Screenshots
Verdict
The clearest difference is iOS requirement: Blaise at 11.0 against Contradict's 13.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Blaise | Contradict |
|---|---|---|
| Price | Free | Free |
| Update frequency | โ | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPod |
| Requires iOS | 11.0 โ better | 13.0 |
| Further details โ not scored | ||
| Size | 245 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Centraal Bureau voor de Statistiek | Robin Hedinger |
In-app purchases
Blaise
No in-app purchases
Contradict
No in-app purchases









