Short answer: A free language app is enough to start and to build a habit, because most free tiers give you the core lessons. What a paid plan really buys is more speaking with feedback and review built from your own mistakes. Those two features move you forward. No ads, unlimited hearts, streak protection and badges make an app more pleasant, but they do not make you learn faster. Pay only when the free tier is clearly limiting how much you speak or review, and test that during the trial before it renews.
What Free Plans Usually Give You (and Where They Stop)
"Free" means very different things across language apps. It helps to separate three models:
- Free tier with paid upgrades: the full course is free, and premium removes friction or adds extras. Duolingo is the clearest example: its help center says it offers the same lesson content to all users, free or paid.
- Free trial, then paid: you get the full product for a short period, then you must subscribe. Speak works this way, with a 7-day free trial according to its website.
- General AI with usage limits: tools like ChatGPT are free to use but cap the expensive parts, such as voice chats.
Where free plans stop is predictable. The features that cost an app the most to run, live AI conversation and personalized feedback, are the ones that get capped or reserved for subscribers. Course content, which costs little to serve, is often free. If you only want vocabulary and grammar drills, a free plan may be all you need. Our list of the best free AI speaking apps covers how far free speaking practice can go.
What Premium Plans Add, App by App
Here is what the official pages of five popular options say their paid plans add. We list prices only where the official page shows them publicly today.
| App | Free option | What paying adds | Price shown publicly |
|---|---|---|---|
| Duolingo (Super) | Full lesson content, with ads and mistake limits | No ads, unlimited hearts, personalized practice from your mistakes, unlimited Legendary attempts; unlimited Video Call rolling out to all Super subscribers by end of 2026 | Not shown on the Super page; 1 week free trial |
| Speak (Premium / Premium Plus) | 7-day free trial only | Premium: full curriculum, roleplay, Smart Review, Speak Tutor; Premium Plus: unlimited custom lessons, personalized study plan, targeting your frequent mistakes | Not public; shown in the app and varies by region |
| ChatGPT (Go / Plus / Pro) | Free plan with limited voice chats | More voice chats (Go, Plus), voice with video, longer memory; Pro lists unlimited voice, subject to usage policies | Go $8, Plus $20, Pro from $100 per month (US page) |
| Enverson AI | Free version available to try before buying | Role-play, conversation, instant feedback, progress tracking, AI advisor | Individual $9.99 per month, or $8.25 per month billed yearly |
| Babbel | Covered in our dedicated guide | Full course access by subscription | See our Babbel prices and plans guide |
Facts checked November 14, 2026, on the official Duolingo, Speak, OpenAI and Enverson pages listed in Sources. Prices are in US dollars and can differ by country, platform and promotion.
Two changes stand out. First, Duolingo is simplifying its tiers. In its third quarter 2026 shareholder letter, Duolingo said unlimited Video Call is coming to all Super subscribers by the end of the year, so it is sunsetting Max: it will stop selling new Max subscriptions and move existing individual Max subscribers to a Super family plan at the same price. Its help center still describes Max, so expect the in-app offer to change. Our Duolingo Video Call review looks at the feature itself. Second, Speak's FAQ says plainly that a paid subscription is required after the trial, and that prices are shown in the app.
Which Premium Features Actually Matter for Progress
Not all premium features are equal. This table sorts the usual paid features by whether they help you get better at the language.
| Premium feature | Matters for progress? | Why |
|---|---|---|
| Unlimited speaking practice with feedback | Yes, most | Speaking improves with volume and correction; caps on voice chats or roleplays cap your practice |
| Mistake tracking and personalized review | Yes | Reviewing your own errors is more efficient than repeating generic exercises |
| Full course access | Yes, if the free tier locks content | Irrelevant on Duolingo, where lessons are free; essential on trial-only apps |
| Offline access | Yes, for commuters and travellers | Lets you practise in dead time without signal, which adds up |
| Unlimited hearts or no mistake limits | Partly | Removes interruptions, but avoiding mistakes was never the goal |
| No ads | Nice extra | More pleasant sessions, no change to what you learn |
| Streak repair or protection | Nice extra | Protects motivation, not skill |
| Leaderboards, badges, cosmetics | Nice extra | Can motivate some learners, but reward easy lessons over hard ones |
Why speaking with feedback comes first
Most adult learners who pay want to speak. Speaking is also the skill free tiers restrict most. On ChatGPT, for example, OpenAI's pricing page lists limited voice chats on the Free plan and more voice chats on Go and Plus. If your free voice time runs out after one short session, a paid plan genuinely changes how much you practise.
Why mistake-based review is second
Review that adapts to your errors saves time. In our test, language-teaching specialists checked which apps remember your mistakes: Enverson AI and ChatGPT do, Speak partly does, and Duolingo, Praktika and Langua do not. Paid plans increasingly sell this feature. Speak's help center reserves "Target your frequent mistakes" and a personalized study plan for Premium Plus, and Duolingo's help center lists personalized practice based on your mistakes as a Super benefit.
Nice Extras You Can Skip
Some premium perks are sold hard but barely affect learning:
- No ads: pleasant, but you can learn just as well with a few ads between lessons.
- Unlimited hearts or energy: useful if mistake limits stop you from finishing sessions. If you rarely hit them, skip it. Our Duolingo Energy explainer shows how these limits work in practice.
- Streak repair: keeps a number alive, not a skill.
- Leaderboards and cosmetic items: fun for competitive people, but they reward the quantity of easy lessons more than real progress.
A useful test: would the feature change what you can say next month? If not, it is an extra.
A Decision Checklist Before You Pay
- Name your goal. Conversation, an exam, travel or reading? If it is speaking, judge plans on speaking limits first.
- Find the free tier's real limit. Is it content, speaking time, feedback or ads? Only pay to remove a limit that actually blocks you.
- Check what remembers your mistakes. Look for review built from your own errors, not just repeated lessons.
- Read the price in the app or on the official page. Several apps do not publish prices on the web, and they vary by country and platform.
- Check renewal and refund terms. Duolingo's Super page says the account is charged on day 7 and you can cancel up to 24 hours before. Enverson AI's homepage mentions a 30-day money-back guarantee.
- Count your real usage. If you study ten minutes a day, a plan you barely use costs more per lesson than you think.
- Compare with a general AI tool. If you already pay for ChatGPT, its voice mode may cover part of your speaking practice, though our testers found it works best for people who already know how to direct their own study.
Not sure which kind of app suits you? Our Find Your Fit quiz matches you to an app type in a few questions.
How to Test a Free Trial in 7 Days
A trial is only useful if you use it like a paying learner. This routine fits a typical 7-day trial:
- Day 1: set a calendar reminder two days before the trial ends, then record a two-minute voice memo describing your week in the target language. This is your baseline.
- Days 2 to 3: use only the premium features you would be paying for, especially speaking. Note how long you can talk before hitting a limit.
- Day 4: repeat a mistake on purpose (for example, a wrong verb ending). See whether the app notices and brings it back later.
- Day 5: check the review section. Is it built from your errors, or is it the same exercises for everyone?
- Day 6: use the app the way you would on a busy day, for ten minutes. Does it still feel worth it?
- Day 7: record the same voice memo again, compare it with day 1, and decide before the charge, not after.
Where an app offers a free version instead of a trial, as Enverson AI does, you can run the same routine without a deadline, then compare what the paid plan adds. Enverson AI scored 82 out of 100 in our test of AI speaking apps, where focus group testers found that after a mistake, the next session knew how to handle it. ChatGPT (79.3), Speak (77.5) and Duolingo (76.9) followed, each suiting a different kind of learner, so the right paid plan depends on how you learn.
Frequently Asked Questions
Is a free language app enough to become fluent?
A free app can build vocabulary and a daily habit, but most free tiers limit the one thing fluency needs most: lots of speaking with feedback. Pair a free app with conversation practice, or pay for a plan that removes the speaking limits.
Is Duolingo Max still worth buying?
Duolingo said in its third quarter 2026 shareholder letter that it will stop selling new Max subscriptions and is bringing unlimited Video Call to all Super subscribers by the end of 2026, so Super is the plan to evaluate now.
Does Speak have a free version?
Speak's own site describes a 7-day free trial, after which a paid subscription is required. It offers two paid plans, Premium and Premium Plus, and shows prices inside the app because they vary by region.
Is ChatGPT voice free for language practice?
Yes, with limits. OpenAI's pricing page lists limited voice chats on the Free plan and more voice on the paid Go, Plus and Pro plans, so long daily speaking sessions are where the free plan runs out.
Which premium feature matters most for progress?
Unlimited speaking practice with feedback, followed by review that is built from your own mistakes. Ad removal, streak protection and cosmetic extras make an app nicer to use but do not make you learn faster.
Sources
- Duolingo Help Center: What is Super Duolingo and how do I subscribe? (checked November 14, 2026)
- Duolingo: Super Duolingo page and free trial terms (checked November 14, 2026)
- Duolingo: Q3 2026 shareholder letter (November 2026)
- Speak Help Center: What's the difference between Premium and Premium Plus? (checked November 14, 2026)
- Speak: official website and FAQ (checked November 14, 2026)
- OpenAI: ChatGPT plans and pricing (checked November 14, 2026)
- Enverson AI: Prices (checked November 14, 2026)