xSample vs Thermal Camera|Night Vision
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
xSample
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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.
Thermal Camera|Night Vision
Simulate thermal and night vision effects on your device's camera. Apply live filters to see the world from a new perspective. These visual effects are for entertainment and exploration.
- Thermal vision simulation
- Night vision filter
- Infrared imaging
- Live camera filters
- Color gradient effects
- Swipe to toggle filters
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Give your photos and videos a thermal camera-style look with a heat-inspired visual effect. Capture new content directly in the app or apply the effect to photos and videos from your gallery. Key Features: - Create thermal camera-style photos and videos. - Explore thermal, night vision, X-ray-style, and neon effects. - Capture photos and videos directly in the app. - Import existing media from your gallery. - Save your edited photos and videos. - Revisit saved creations in your history. Turn everyday photos and videos into thermal camera-style visuals and explore other distinctive effects in the same app. Capture, transform, save, and revisit your creations whenever you like. Disclaimer: Night Vision, Thermal and X-ray features in app are purely visual effects and do not represent actual device capabilities. These effects are for entertainment purposes only. Please use responsibly and understand that the app is not a substitute for professional-grade equipment. Payment will be charged to the credit card connected to your iTunes Account when you confirm the initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current period, and the cost of the renewal will be identified. You may manage your subscription and auto-renewal may be turned off by going to your Account Settings after the purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription, where applicable. By using this app, you consent to our Privacy Policy and Terms of Use: https://docs.google.com/document/d/1nOLqkEj-83MaMJYkEIFPilNlEIvi_VOyPqRsx3J8gt0/edit?usp=sharing https://docs.google.com/document/d/1eKJ-ztS-eRwduj1T-UBnWOfRd3WKDWt2D8vbPuaZlfk/edit?usp=sharing
Screenshots
Verdict
The clearest difference is in-app purchases: xSample at none against Thermal Camera|Night Vision's 6. xSample also leads on update cadence (every 2 months vs every 6 months) and device support (3 vs 1). On price and ads 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
Both are free to download. Thermal Camera|Night Vision sells 6 in-app purchases, starting at $6.99 per 7 days. xSample asks for nothing beyond the download.
xSample ships an update every 2 months, Thermal Camera|Night Vision every 6 months. The most recent releases landed on October 4, 2026 and October 20, 2026 respectively.
| Parameter | xSample | Thermal Camera|Night Vision |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (210 ratings) — better |
| Positive reviews | — | 23.1% of reviews |
| Number of ratings | — | 210 — better |
| Update frequency | Every 2 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 31 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Ljiljana Lazarevic | Adam Nowak |
Bugs and requests
xSample
Not enough reviews yet to summarise bugs or requests.
Thermal Camera|Night Vision
Reported bugs
4 issues- Thermal camera shows incorrect colors
- App requires payment before showing results
- App doesn't work in the dark
- App claims body is too cold when it's not
Requested features
3 requests- Fix thermal camera accuracy
- Clearly state subscription costs upfront
- Make the app free or offer a one-time purchase option
In-app purchases
xSample
No in-app purchases
Thermal Camera|Night Vision
- Thermal Vision: Camera Filters3 Days trial$6.997 Days
- Thermal Vision: Camera Filters$6.997 Days
- Thermal Vision: Camera Filters3 Days trial$9.997 Days
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- Thermal Vision: Camera Filters$9.997 Days
- Thermal Vision: Cam Filter App$19.991 Month
- Thermal Vision: Cam Filter App$39.991 Year
Questions
Is xSample free?
Is Thermal Camera|Night Vision free?
Do xSample or Thermal Camera|Night Vision have ads?
Which is updated more often, xSample or Thermal Camera|Night Vision?
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