Comparison

reev vs xSample

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

Head to head
About

reev

Manage your personal electric vehicle charging sessions securely and easily. Track active and past charging sessions, view details like location and costs, and store payment information for automatic billing. Requires an invitation from the charging station operator.

Highlights
  • Password-protected access
  • Autonomous RFID card onboarding
  • Start/stop charging sessions
  • View charging history and details
  • Live overview of active sessions
  • Store payment information
  • View invoices and receipts
Features
Read full description

Please note: With the reev App, it is not possible to charge at public charging stations. To use it, you need a personal invitation from the operator of the charging station. The reev app for drivers makes it even easier to get started with eMobility. Keep an overview of your charging session at all times and manage your charging sessions simply, securely and, above all, easily with the app. Functionalities of the app: - Password-protected app - Autonomous onboarding: add RFID card independently - Start and stop charging sessions via smartphone - View charging history and check details of charging sessions (location, time, duration, costs) - Keep a live overview of active charging sessions - Store payment information for automatic billing - View invoices / receipts

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.

Screenshots

reev4 screens
xSample4 screens

Verdict

The call

The clearest difference is update cadence: reev at weekly against xSample's every 2 months. xSample's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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

reev ships an update weekly, xSample every 2 months. The most recent releases landed on September 28, 2026 and October 4, 2026 respectively.

Scorecard2 real differences · 8 level
reev versus xSample: the parameters behind the verdict, then further details
ParameterreevxSample
PriceFreeFree
Rating2.3 (3 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings3 — better—
Update frequencyWeekly — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.015.6 — better
Further details — not scored
Size52 MB31 MB
Age rating17+4+
Developerreev GmbHLjiljana Lazarevic

In-app purchases

None

reev

No in-app purchases

None

xSample

No in-app purchases

Questions

Is reev free?
reev is free to download, with no in-app purchases.
Is xSample free?
xSample is free to download, with no in-app purchases.
Do reev or xSample have ads?
Neither reev nor xSample shows ads.
Which is updated more often, reev or xSample?
reev ships an update weekly, and xSample every 2 months. Most recently, reev was updated on September 28, 2026 and xSample on October 4, 2026.

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