Comparison

xSample vs Vibration Timer

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

Head to head
About

xSample

Features
Read full description

What is xSample? xSample app for administering experience sampling methodology is a free, open-source application for running questionnaires, surveys, etc. Experience sampling or experience sampling method (ESM) refers to set of techniques to capture people's behaviors, thoughts, or feelings as they occur in real-time. xSample allows tracking emotions and actions of participants. xSample asks questions to participants and records their answers and their response times. The data are later uploaded to a computer for analysis. xSample is quite configurable - the experimenter determines the questions, their order, how often to run trials, whether trials occur at predetermined or random times, etc. It also allows tracking the number of incoming and outgoing calls, the number of text messages exchanged xSample is very user friendly, and it does not require programing knowledge. How secure and private is this? The data about the calls and messaging are restricted only to the amount of the mobile traffic, and not to the content of it. The data are stored to the central server where it is completely secure. The data will be used exclusively to researchers conducting study as part of the project of the Institute of psychology and Department of psychology, University of Belgrade. Our goal is to have more comprehensible view on humans’ everyday feeling, thoughts and behavior, and their relations to some of the most important psychological characteristics. xSample app Once you install the app, start it. You have to agree with the terms of usage, and you need to login with your username assigned to you by your research coordinator. After the application is successfully launched, the welcome screen will be displayed to you. You can safely resume using your phone as you did before the application was installed. The application will run quietly in the background, except for those few moments when it prompts you to fill out a questionnaire. Notifications will be delivered using your standard notification sound/vibration settings. In case you miss a notification, or quit a survey before filling out all the questions, you can restart the application by using its icon or shortcut on your phone. Can I withdraw from using xSample app? If for any reason you want to withdraw from the experiment you can easily do so by uninstalling the application. After the app has been uninstalled, no further questionnaires will be collected.

About

Vibration Timer

This utility app provides a silent timer that relies solely on vibration for notifications. It offers unlimited preset timers with customizable labels and colors, and can send strong vibration alerts even when the app is in the background. The interface supports dark mode and displays an icon badge when a timer is active.

Highlights
  • Silent vibration-only notifications
  • Unlimited preset timers
  • Customizable timer labels and colors
  • Background vibration alerts
  • Icon badge display
  • Dark mode support
Features
Read full description

It's a timer app with no sound & only vibration. All features are completely free to use. - Unlimited preset timers - Timer can be specified up to the number of seconds - Set labels and colors for timers - Notification with strong vibration while the app is running - Vibrate notification up to 60 times even in the background - Icon badge display while timer is running - dark mode URL scheme: vibrationtimer://

Screenshots

xSample4 screens
Vibration Timer4 screens

Verdict

The call

The clearest difference is ads: xSample at none against Vibration Timer's shown. xSample also leads on update cadence (every 2 months vs every 11 months) and iOS requirement (15.6 vs 26.0). On price, in-app purchases and device support 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

xSample ships an update every 2 months, Vibration Timer every 11 months. The most recent releases landed on October 4, 2026 and October 18, 2026 respectively.

Scorecard3 real differences · 7 level
xSample versus Vibration Timer: the parameters behind the verdict, then further details
ParameterxSampleVibration Timer
PriceFreeFree
Rating—4.3 (13 ratings) — better
Positive reviews—66.7% of reviews
Number of ratings—13 — better
Update frequencyEvery 2 months — betterEvery 11 months
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better26.0
Further details — not scored
Size31 MB10 MB
Age rating4+4+
DeveloperLjiljana LazarevicFugaPiyo Inc.

In-app purchases

None

xSample

No in-app purchases

None

Vibration Timer

No in-app purchases

Questions

Is xSample free?
xSample is free to download, with no in-app purchases.
Is Vibration Timer free?
Vibration Timer is free to download, with no in-app purchases.
Do xSample or Vibration Timer have ads?
Vibration Timer shows ads; xSample does not.
Which is updated more often, xSample or Vibration Timer?
xSample ships an update every 2 months, and Vibration Timer every 11 months. Most recently, xSample was updated on October 4, 2026 and Vibration Timer on October 18, 2026.

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