Frequently Asked Questions

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We recommend that before buying a large quantity of devices, you buy one device of the intended type beforehand and test it with movisensXS.

There are a few minimum requirements for the Smartphone:

  • Operating System: Android 4 or higher
    Other operating systems are currently not supported. Experience Sampling has lots of requirements and building a solid solution for multiple operating systems is very difficult. The iPhone is also too restricted for research purposes. We focus on Android because cheap smartphones are available. Android is also open source and it is sustainable.
  • Minimum 100MB internal storage. The study configuration and the study results are stored in the internal data storage, if multimedia items are used please buy a smartphone with 4-8GB internal storage
  • Processor: 600 MHz or higher (recommended)
  • Battery: 1200 mAh or higher (recommended to achieve a longer battery life)
  • A larger display size makes it easier to input text but consumes more power and are not as handy for everyday use. 4" to 5" areö optimal.
  • If you need to transfer the results during the study to monitor compliance, choose a device with 3G mobile connectivity. Please test the data usage and disable all automatic updates. If possible choose a mobile data flat rate.

Recommended android devices because of the good value/price:

Brand Model Application
Motorola Moto E Good performance and good screen size for the pocket.
Motorola Moto G Better performance and camera with larger screen.
Google Google Nexus Smartphone with large screen. Expensive, but with most recent hard- and Android software with updates.
Nvidia NVIDIA SHIELD K1 Tablet Tablet with good value/price and recent Android software.

To comply to data privacy requirements or to get an approval from the ethics committee you usually have to prepare an informed consent that the participant has to sign.

The content of such an informed consent is out of the scope of this documentation but you have to include information about the data you aquire and the institutes involved in processing the data. Because movisens is involved in processing the data you have to include information like the following:

movisens GmbH, Karlsruhe, Germany is allowed to process the data collected by the smartphones and store them in the datacenter of the Host Europe GmbH in Köln, Germany until the data is requested for deletion by the researcher. The data is collected and stored anonymously, the identity of the participant is not known to movisens. The study is not allowed to collect data from the participant that allows uncovering the identity of the participant.


We cannot give legal advice here, because the law is different in each country! Please consult your data privacy officer.

We implemented the following security protections

  1. 256 Bit encrypted data transfer on all data channels (between smartphone and server respectively server and browser of the researcher).
  2. 256 Bit encrypted data storage on the smartphone. Decryption of the data will happen only on the server. If a smartphone is lost by the participant, the data collected cannot be decrypted by a third person.
  3. Our hosting provider (HostEurope) cares for data security, data privacy and that the server is hosted in a secure environment. The hosting provider is also ISO 27001 certified which means that he cares for reliance, privacy, integrity and authenticity.
  4. movisens does not know the identity of the participant. All participants get a pseudonym. In the study no personal data is allowed to be collected that allows to identify the participant (e.g. name).

Experience Sampling / Ambulatory Assessment

Bolger, N. & Laurenceau, J.-P., 2013. Intensive Longitudinal Methods: An Introduction to Diary and Experience Sampling Research, Guilford Press.
Conner, T.S. et al., 2003. A Practical Guide to Experience-Sampling Procedures. Journal of Happiness Studies, 4(1), pp.53–78.
Conner, T.S. & Mehl, M.R., 2011. Handbook of Research Methods for Studying Daily Life 1 edition., New York: The Guilford Press.
Fahrenberg, J. et al., 2007. Ambulatory Assessment - Monitoring Behavior in Daily Life Settings. European Journal of Psychological Assessment, 23(4), pp.206–213.
Stone, A.A. & Shiffman, S., 2002. Capturing momentary, self-report data: A proposal for reporting guidelines. Annals of Behavioral Medicine, 24(3), pp.236–243.
Trull, T.J. & Ebner-Priemer, U., 2013. Ambulatory Assessment. Annu. Rev. Clin. Psychol, 9, pp.151–76.

Data Analysis

Cranford, J.A. et al., 2006. A Procedure for Evaluating Sensitivity to Within-Person Change: Can Mood Measures in Diary Studies Detect Change Reliably?
Singer, J.D. & Willett, J.B., 2003. Applied Longitudinal Data Analysis: Modeling Change and Event Occurrence.
Snijders, T.A.B. & Bosker, R., 2011. Multilevel Analysis: An Introduction to Basic and Advanced Multilevel Modeling Second Edition edition., Los Angeles: SAGE Publications Ltd.
West, B., 2007. Linear Mixed Models: A Practical Guide Using Statistical Software.

The Lockout-Mode prevents the participant from accessing applications other than movisensXS. To enable the Lockout-Mode, change the configuration parameters of the Sampling running node in the Sampling tab of the web console. Activate Full Screen and Lock other applications. If it is configured and the Study is running the Smartphone will block other applications and will instead launch movisensXS.

The language of the movisensXS app is automatically chosen depending on the configured smartphone language. The study control screens are always in English. Only the screens the participant sees are translated.

The following languages are currently available.

If your language is missing, just register at transifex as a translator and than go to movisensXS app translation, select your language and press Join team (top right). We will approve your account and your translations will be included in our next release.

The results can be downloaded in different formats:

  • Excel 2007 (XLSX): Default option when downloading results.
  • Comma-separated values (CSV): CSV for regions where the decimal separator is a '.'.
  • Semicolon-separated values (CSV): CSV for regions where the decimal separator is a ','.
  • Multimedia Results (ZIP): Contains all captured multimedia files in a ZIP.
  • Unisens Log File (ZIP): If you are using logging features (beta), the files are logged in the unisens file format.
  • Unisens Log File in minutes (XLSX): This Excel file tries to aggregate the logged data. Please note this file does not contain all data and is only intended for an overview!
  • Track as Google Earth File (KMZ): If you are using the location tracking feature (beta) you can use this file to get an overview over the track of the participant. The KMZ file contains the location data and can be opened with tools like Google Earth or online with the GPS Visualizer. You can also use Google Earth to show the Elevation Profile of the track.

The Form_upload_time and data of the result files is in Central European (Summer) Time which is UTC/GMT +2 hours in winter or UTC/GMT +1 hours in winter. The current time zone can be found here.

All other dates are stored in the local time of the smartphone.

Beginning with app version 0.6.3591 you can select the alarm sound in the settings of the movisensXS app. You can either choose an alarm that shipped with your device or if you install the ES File Explorer File Manager you can also select audio files you placed on the device.

If you experience a problem, please check the following points:

  • Did you create a form with at least one item and a sampling containing at least three sampling blocks?
  • Did you include a form block and specified the form that should be triggered?
  • Please open all sampling blocks and check if you configured everything correctly.
  • Please check that all visibility rules of all items of all forms do not show an error

If the problem persists please contact us as described under support.

To cite movisensXS please include the version of the smartphone app. For example:

movisensXS, Version 0.7.4162 (movisens GmbH, Karlsruhe, Germany)

  • Improved barcode scanner
  • Improved random time trigger to work in cases of restart
  • Decreased amount of permissions on startup
  • Improved margins
  • Improved UI with consistent card buttons
  • Added Android Nougat (Android 7) support
  • Added indicator for study state at homescreen
  • Added send log information to developer
  • Added indicators in WebViews
  • Prevent user from double clicking buttons
  • Back button now usable in informed consent
  • Automatic cancelling of concurrent alarms
  • Fixed various bugs
  • Added new informed consent option
  • Added few privacy enhancements
  • Added better alarm and form handling
  • Added support for Android 6 (Marshmellow)
  • Added opt-out from crashlytics
  • Added new lock other apps mechanism to support newer devices
  • Added new options for auto upload
  • Added imprint and terms of service
  • Added new barcode scanning
  • Added new item formats
  • Changed to card UI
  • Fixed location problems through new algorithm
  • Changed to google play services 8.1
  • Various bug fixes
  • Compatible with Android Version 2.3+
  • Added alarmcards
  • Fixed couple dialog bug
  • Introducing participant friendly notification system for alarms
  • Beautiful new user interface for all android versions
  • Participants can configure alarm sound / font size
  • Participant can couple with a study link
  • Removed possibility to select files in multimedia items
  • Update to google play services 7.5.0
  • Optimization for android Lollipop and M
  • Fixed music player bug on HTC One V
  • Added possibility to let the participant define a trigger time
  • Compatible with Android Version 2.3+
  • Introducing participant friendly notification system for alarms. These alarms can now also be muted by setting the phone to silent mode.
  • Participants can now configure the alarm sound and font size
  • Beautiful new user interface for all android versions
  • Added new participant onboarding
  • Longer texts can be shown in the random word item
  • Participant can couple with a study by clicking on a link
  • Removed possibility to select old files in multimedia items
  • Update to google play services 7.5.0
  • Optimization for android lollipop and M
  • Fixed bugs with music player on HTC One V
  • Improved random time triggers
  • Added possiblity to let the participant define a trigger time
  • Compatible with Android Version 2.3+
  • Added possibility to select custom alarm sounds
  • Added app version to control screen
  • Fixed possible problems when two red sampling-blocks are connected to the same trigger
  • Fixed seldom duplicate form starts on Android 4.4
  • Fixed inaccurate Timing on Android 4.4
  • Smaller error corrections in PlayAudioItem, Lock other Applications and Updating from v2517
  • Improved accuracy of location and steps logging (beta feature)
  • Added messaging between participants and study supervisor
  • Fixed problems with overlaying keyboard in full-screen mode
  • Lots of stability improvements
  • Improved coupling, sync and upload process
  • Improved date and time pickers on Android > 3.0 and made default time adjustable
  • Fixed problems with multimedia items on Android 4.4
  • Added media players to multimedia items and PlayAudioItems
  • Closing missed alarm-screens
  • Fixed issue with CDMA phones
  • Preparation for future awesome features ;-)
  • Fixed issues with Android 4.3
  • Improved stability (an Android bug caused a crash on some devices after ~1000 items have been answered).
  • Moved all data to internal storage (requires enough internal storage but increases reliability).
  • Fixed auto start after reboot feature on Nexus devices running Android version 4.2.2.
  • Improved Excel result output (split dates, split select many options, added forms column, reordered columns)
  • Improved result graphs
  • Added possibility to track the amount of credits used by each study (included in billing)
  • Added support for international characters (e.g. Chinese)
  • Added movisensXS guide
  • Probands are now participants
  • App: Delayable alarms
  • App: Optimized likert scale and vas scale (possibility to hide marker)
  • App: Smaller GUI improvements
  • App: Smaller bug fixes
  • Fix for not working PIN code
  • Fix for a disappearing control screen
  • Fix for not appearing alarms
  • Added new Bug Reporting meachanism
  • Improved coupling process
  • Fixed bug with Lock other Applications
  • Added Reaction Time Items
  • Added Auto Advance Items
  • Introducing Multimedia Items
  • Introducing Display Image Item Format
  • Improved Study Control Screen
  • Integrated Barcode Scanner into movisensXS
  • Improved developer integration
  • Improved forms editor with icons, visibility rules and multi-item screens.
  • First public release

The following issues are known and can currently not be fixed:

  • Huawei Ideos X3: The "Play Audio" item does not work properly. The screen get locket by the phone.
  • LG D160: The "Play Audio" item does not work properly. The media playback controls do not get removed from the screen.
  • HTC One V: The "Record Video" item does not work properly. The video can be recorded, but cannot be played back on the device.
  • Samsung Galaxy Tab with Android Version 4.4.2: If the personal messages windows is not fully loaded and the back button is pressed, the app crashes and restarts.

We offer a beta program that allows you to access the latest versions of movisensXS before the general release. This allows us to deliver features faster and test them in the field without breaking ongoing studies.

Because the beta build will have features that are still in progress, the app may be less stable than you're accustomed to. Feedback on stability, as well as any other performance issues you experience, is crucial and greatly appreciated.

To join the Beta program, follow these steps:

  1. Activate movisensXS beta downloads by clicking Become a Tester in the Play Store with the gmail account you are using on your smartphone to download movisensXS over the play store.
  2. Download the movisensXS App from the Play Store to update your app
  3. Tell us what you think at

To leave the beta test click "leave the test" in the Play Store.

Thanks so much to