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Scan results
Marktplaats
AndroidQuick Verdict
Best for: Dutch buyers and sellers comfortable with data sharing
What It Means For You
Browsing habits, searches, and listing activity are collected and shared beyond the app itself. Data generated while viewing ads and messaging sellers is retained and used to build a profile of user interests. Users have partial control over how this information is managed, but full opt-out options are limited.
Quick Verdict
Best for: Dutch buyers and sellers comfortable with data sharing
What It Means For You
Browsing habits, searches, and listing activity are collected and shared beyond the app itself. Data generated while viewing ads and messaging sellers is retained and used to build a profile of user interests. Users have partial control over how this information is managed, but full opt-out options are limited.
Method and Limitations
Static analysis only. CITT reviewed the code of this build without running the app, so runtime behavior was not observed. The findings below describe the analyzed build and may not reflect server-side controls or later versions. CITT makes no determination about compliance with any law or platform policy; it reports what the artifacts contain and cites the published guidance so a reader can compare.
Version diff is on the Developer plan. See developer plans.
Package
nl.marktplaats.android
Version
15.28.0 (Build 633371)
Analysis Date
Nov 21, 2025
Classes Analyzed
22,135
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Recommendation: Use With Caution
Key Findings
Data Security - 0 findings
Network Security - 0 findings
Code Safety - 0 findings
Privacy - 0 findings
Privacy Concerns
What Data is Collected
Marktplaats collects data tied to user searches, browsing history within the app, and interactions with listings. Messages exchanged with buyers or sellers are processed and stored. User activity is used over time to build a profile of interests and preferences.
Third-Party Data Sharing
No specific third-party tracking services were identified in this analysis. However, the app's data sharing score of 40 out of 100 indicates that information generated during use likely flows to partners outside the service. The full scope of this sharing is not clearly communicated within the app.
Understanding the Scores
| Category | Score |
|---|---|
| Security | 65/100 |
| Privacy | 50/100 |
| Data Security | 50/100 |
| Network Security | 55/100 |
| Code Safety | 75/100 |
| Data Collection | 45/100 |
| Data Sharing | 40/100 |
| User Control | 60/100 |
Positive Security Features
- Code safety practices score above the midpoint, reflecting some attention to safe development standards within the app.
Areas for Improvement
- The scope of data collected during ordinary browsing and searching is broader than what is strictly necessary to provide the service.
- Data sharing practices lack transparency, making it difficult to understand where user information goes once it leaves the app.
- Controls for managing behavioral profiling or limiting data use are not easily accessible within the app.
About This Analysis
This scorecard is based on automated static analysis of the app's code and configuration. Scores reflect practices observed at the time of the scan and may not capture all runtime behaviors.
App Details
- App: Marktplaats
- Package ID: nl.marktplaats.android
- Version: 15.28.0 (Build 633371)
- Scan Date: 2025-11-21
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