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Head-to-head · Iphone Apps

Duolingo vs Signal

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score Duolingo #4 in Iphone Apps 9.0/10 Free plan · 14-day trial Free planFree trial✓ 0 of 5 features Visit Duolingo
Signal #7 in Iphone Apps 8.6/10 Free plan Free plan✓ 0 of 5 features Visit Signal

Duolingo leads on 0 checks, Signal on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreDuolingo · 9.0/10
  • Free planboth
  • Free trialonly Duolingo

Duolingo scores higher on our rubric for iphone apps: 9.0 against 8.6 out of 10; our editors rank them #4 and #7.

Duolingo is the better fit for iPhone learners practicing a new language. Signal is the better fit for iPhone users prioritizing private messaging.

  • Duolingo fits best

    iPhone learners practicing a new language

  • Signal fits best

    iPhone users prioritizing private messaging

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Side by side

Feature Duolingo 9.0/10 Visit ↗ Signal 8.6/10 Visit ↗
At a glance
Editor score 9.0 8.6
Ranking #4 in Iphone Apps #7 in Iphone Apps
Best for iPhone learners practicing a new language iPhone users prioritizing private messaging
Pricing model Free plan + paid Free plan + paid
Starting price Free plan · 14-day trial $1.99/mo
Free plan ✓ ✓
Free trial 14 days —
Deployment Cloud, Mobile Desktop, Mobile
Platforms Web, macOS, iOS, Android Windows, macOS, Linux, iOS, Android
Features Duolingo 0/5 · Signal 0/5
Offline access Not checked yet Not checked yet
iPad app Not checked yet Not checked yet
Apple Watch app Not checked yet Not checked yet
Home screen widgets Not checked yet Not checked yet
Family Sharing Not checked yet Not checked yet
Specs
Apple devices Not checked yet Not checked yet
Our review
Pros
  • Lessons cover speaking, writing, reading, and listening
  • Placement tests and personalized review adapt practice to progress
  • Stories, DuoRadio, and speech exercises add variety
  • End-to-end encryption covers messages and calls by default
  • Disappearing messages, group calls, and 1,000-member chats
  • Open-source clients span iPhone, desktop, Android, and tablets
Cons
  • Free tier is supported by advertising
  • Offline access is limited to downloaded content
  • AI-powered conversation features are available only in Duolingo Max
  • Secure Backups costs $1.99 per month
  • Free backups focus on recent media; history beyond 45 days needs Secure Backups
  • Linked devices are limited to five per account
Our verdict

Duolingo turns language study into short, interactive lessons for learners who want to practice on an iPhone or switch between mobile and browser-based study. Its courses span more than 40 languages and cover speaking, writing, reading,…

Read the review →

Signal is a nonprofit messaging application for individuals, families, groups, and organizations that prioritize private communication. Its core service covers encrypted text, voice messages, photos, videos, GIFs, files, one-to-one calls,…

Read the review →
  1. DuolingoIphone Apps 9.0Free plan · 14-day trial
  2. SignalIphone Apps 8.6Free plan

Strengths and trade-offs

  • Duolingo — where it wins

    • Lessons cover speaking, writing, reading, and listening
    • Placement tests and personalized review adapt practice to progress
    • Stories, DuoRadio, and speech exercises add variety

    Where it doesn't

    • Free tier is supported by advertising
    • Offline access is limited to downloaded content
    • AI-powered conversation features are available only in Duolingo Max
  • Signal — where it wins

    • End-to-end encryption covers messages and calls by default
    • Disappearing messages, group calls, and 1,000-member chats
    • Open-source clients span iPhone, desktop, Android, and tablets

    Where it doesn't

    • Secure Backups costs $1.99 per month
    • Free backups focus on recent media; history beyond 45 days needs Secure Backups
    • Linked devices are limited to five per account
  • Duolingo9.0/10 · Free plan · 14-day trial

    A flexible language-learning app for brief practice, with a free tier and paid extras.

    Visit DuolingoFull verdict →
  • Signal8.6/10 · Free plan

    A free, private messenger with encrypted calls, disappearing messages, and desktop clients.

    Visit SignalFull verdict →

More comparisons

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update