Is Duolingo: Language Lessons Safe? Trust Analysis 2026

Nerq Trust Intelligence

Is Duolingo: Language Lessons Safe?

Use Duolingo: Language Lessons with some caution. Duolingo: Language Lessons is an Android app with a Nerq Trust Score of 66.0/100 (B-), based on 3 independent data dimensions. It is below the recommended threshold of 70. Security: 70/100. Popularity: 95/100. Data sourced from Google Play metadata, Data Safety section, Exodus Privacy tracker analysis, and user ratings. Last updated: 2026-03-25. Machine-readable data (JSON).

Is Duolingo: Language Lessons safe?

CAUTION — Duolingo: Language Lessons has a Nerq Trust Score of 66.0/100 (B-). It has moderate trust signals but shows some areas of concern that warrant attention. Suitable for development use — review security and maintenance signals before production deployment.

Trust Score Breakdown

Security

70

Popularity

95

Key Findings

✓Security score: 70/100 (strong)

⚠Popularity: 95/100 — Google Play presence

Details

Author	Duolingo
Category	android
Source	N/A

Duolingo: Language Lessons Across Platforms

Same developer/company in other registries:

Duolingo - Language Lessons

62/100 · ios

DET - Duolingo English Test

53/100 · ios

Learn to Read - Duolingo ABC

53/100 · ios

Safety Guide: Duolingo: Language Lessons

What is Duolingo: Language Lessons?

Duolingo: Language Lessons is a Android app — Learn Spanish, French, German, English, Math, Music, Chess and more for free..

How to Verify Safety

Review Data Safety section in Google Play. Check permissions and ad trackers.

You can also check the trust score via API: GET /v1/preflight?target=Duolingo: Language Lessons

Key Safety Concerns for Android apps

When evaluating any Android app, watch for: excessive permissions, data collection, ad trackers, background data usage.

Trust Assessment

Duolingo: Language Lessons has a Nerq Trust Score of 66/100 (B-) and has not yet reached Nerq trust threshold (70+). This score is based on automated analysis of security, maintenance, community, and quality signals.

Key Takeaways

Duolingo: Language Lessons has a Trust Score of 66/100 (B-).
Review carefully before use — below trust threshold.
Always verify independently using the Nerq API.

Detailed Score Analysis

Dimension	Score
Security	70/100
Privacy	65/100
Reliability	90/100
Transparency	50/100
Maintenance	60/100

Based on 5 dimensions. Data from Google Play metadata, Data Safety section, Exodus Privacy tracker analysis, and user ratings.

What data does Duolingo: Language Lessons collect?

Duolingo: Language Lessons is published by Duolingo on Google Play, with approximately 841,474,999 downloads.

Privacy score: 65/100. Users should review the app's privacy labels (available on the Google Play listing) to understand what data categories are collected, including identifiers, usage data, and location information.

Before granting permissions, check whether the app requests access to camera, microphone, contacts, or location — and whether each permission is necessary for the app's core functionality.

Full analysis: Duolingo: Language Lessons Privacy Report · Privacy review

Is Duolingo: Language Lessons secure?

Security score: 70/100. This meets the recommended security threshold for production use.

Nerq monitors this entity against NVD, OSV.dev, and registry-specific vulnerability databases for ongoing security assessment.

Full analysis: Duolingo: Language Lessons Security Report

Duolingo: Language Lessons across platforms

Same developer/company in other registries:

Duolingo (website, 48/100)Duolingo (nuget, 46/100)Duolingo - Language Lessons (ios, 62/100)DET - Duolingo English Test (ios, 53/100)

How we calculated this score

Duolingo: Language Lessons's trust score of 66.0/100 (B-) is computed from Google Play metadata, Data Safety section, Exodus Privacy tracker analysis, and user ratings. The score reflects 5 independent dimensions: security (70/100), privacy (65/100), reliability (90/100), transparency (50/100), maintenance (60/100). Each dimension is weighted equally to produce the composite trust score.

Nerq analyzes over 7.5 million entities across 26 registries using the same methodology, enabling direct cross-entity comparison. Scores are updated continuously as new data becomes available.

This page was last reviewed on March 25, 2026. Data version: 1.0.

Full methodology documentation · Machine-readable data (JSON API)

Frequently Asked Questions

Is Duolingo: Language Lessons safe?

Use with some caution. Duolingo: Language Lessons has a Nerq Trust Score of 66.0/100 (B-). Strongest signal: popularity (95/100). Score based on security (70/100), popularity (95/100).

What is Duolingo: Language Lessons's trust score?

Duolingo: Language Lessons: 66.0/100 (B-). Score based on: security (70/100), popularity (95/100). Scores update as new data becomes available. API: GET nerq.ai/v1/preflight?target=Duolingo: Language Lessons

What are safer alternatives to Duolingo: Language Lessons?

In the android category, more Android apps are being analyzed — check back soon. Duolingo: Language Lessons scores 66.0/100.

Is Duolingo: Language Lessons safe for kids?

Duolingo: Language Lessons has a Nerq Trust Score of 66.0/100. Parents should review the full safety report, check permissions and content ratings, and apply appropriate parental controls before allowing children to use it.

Does Duolingo: Language Lessons track me?

Review Duolingo: Language Lessons's privacy labels and data safety sections. Security score: 70/100. Trust score: 66.0/100.

API: /v1/preflight Trust Badge API Docs

Disclaimer: Nerq trust scores are automated assessments based on publicly available signals. They are not endorsements or guarantees. Always conduct your own due diligence.