kitio.aiDuolingo vs InterSub
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. InterSub has the lower starting price: about $6 a month, against $13 for Duolingo.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Bite-sized lessons
- Streaks and leagues
- AI Video Call
- Explain My Answer
- Maths and music courses
- Dual subtitles
- Pop-up AI dictionary
- AI subtitle translation
- Wordbook vocabulary saving
- Anki sync
- Telegram spaced repetition
| Feature | Duolingo | InterSub |
|---|---|---|
| Best for | Gamified language app with AI conversation practice on its Max plan | Dual subtitles and AI word lookups for learning languages on Netflix |
| Category | Education | Education |
| Pricing model | Freemium | Freemium |
| Starting price | $12.99/mo | $6/mo |
| Free plan | Yes | Yes |
| Made by | Duolingo | InterSub Inc. |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
InterSub has the lower starting price: about $6 a month, against $13 for Duolingo.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Free
Free
- All language courses
- Ads and limited hearts
Super
$12.99/mo
- No ads
- Unlimited hearts
- Personalized practice
Max
$29.99/mo
- Everything in Super
- AI-powered explanations
- Video Call and roleplay practice
3 plans
Free
Free
- 15 word lookups per month
- Unlimited dual subtitles
- 14-day Premium trial
Pay-as-you-go
From $1.49
- Unlimited Wordbook access
- AI subtitle translator
- Weekly word reminders
Premium
$6/mo
- Unlimited word lookups
- Word training apps and bots
- Starting price
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Duolingo
- Free plan covers full courses
- Motivating game mechanics
- Huge choice of languages
- Limited speaking practice without Max
- Hard to reach advanced fluency alone
InterSub
- Learn from shows you already watch
- Lookups keep the scene's context
- Exports words to Anki
- Free plan allows 15 lookups a month
- AI translator not in the free plan
- Desktop browsers only for the extension
Which one should you choose?
Choose Duolingo if you want:
- Free plan covers full courses
- Motivating game mechanics
- Huge choice of languages
Watch out: limited speaking practice without max.
Choose InterSub if you want:
- Learn from shows you already watch
- Lookups keep the scene's context
- Exports words to Anki
Watch out: free plan allows 15 lookups a month.
Duolingo vs InterSub FAQ
What is the difference between Duolingo and InterSub?
Duolingo: Gamified language app with AI conversation practice on its Max plan. InterSub: Dual subtitles and AI word lookups for learning languages on Netflix. Both are education tools.
Is Duolingo or InterSub cheaper?
InterSub has the lower starting price: about $6 a month, against $13 for Duolingo.
Do Duolingo and InterSub have free plans?
Duolingo: Yes. InterSub: Yes.
Who makes Duolingo?
Duolingo is made by Duolingo, based in United States.
Who makes InterSub?
InterSub is made by InterSub Inc..
Which should I choose, Duolingo or InterSub?
Choose Duolingo if you value free plan covers full courses and motivating game mechanics. Choose InterSub if you value learn from shows you already watch and lookups keep the scene's context.