Simple pricing
Start free. Upgrade when you’re ready.
The free plan is genuinely useful. Pro unlocks deeper immersion, stronger progression signals, and a much richer dashboard for serious learners.
What Pro unlocks
Free
Forever free. No card required.
- Stages 1 & 2 (5% and 12% rate)
- 1 language
- 500 substitutions / month
- Basic popup statistics
- Chrome extension
- Stages 3, 4 & 5
- Full vocabulary dashboard
- Multiple languages
- Unlimited substitutions
Pro
Most popularCancel anytime. No commitment.
- All 5 stages (up to 42% rate)
- 3 languages simultaneously
- Unlimited substitutions
- Full vocabulary dashboard
- Reading speed tracking
- Struggling words identification
- Session history & analytics
- Priority support
Prices in USD. Billed monthly. Cancel any time from your account settings.
Frequently asked questions
Everything people usually ask before upgrading, answered clearly and without the fine-print gymnastics.
Can I cancel my Pro subscription at any time?
Yes. You can cancel from your account settings with one click, and Pro remains active until the end of the current billing period.
What languages are currently supported?
LearnJargon currently supports Spanish, French, German, Japanese, Italian, Portuguese, Mandarin Chinese, and Korean.
Does LearnJargon work on all websites?
It works best on content-heavy sites like news, blogs, Reddit, and documentation, while sensitive or form-heavy pages are intentionally excluded.
What’s included in the free plan?
Free includes stages 1 and 2, one language, and 500 substitutions per month, enough to experience the learning effect before upgrading.
How is this different from Duolingo or Babbel?
Those tools ask you to open an app and do lessons. LearnJargon works inside your existing reading habits and converts everyday browsing into acquisition time.
Does the extension affect page performance?
Not materially. The extension performs a lightweight text scan after load and avoids injecting ad or analytics bloat.