Audio-based language learning
Hear it. Say it. Remember it.
Flexling plays a sentence in your language, then in the one you are learning. You speak it out loud, and spaced repetition helps you remember it. Simple but highly effective.
Free plan, no card needed.
Step 1 of 3 · Listen
Could we have the bill, please?
¿Nos trae la cuenta, por favor?
Press play. English plays first, then Spanish.
How it works
Absorb sentences by listening.
Listen to sentences at your level to pick up new words, and let the grammar come with them. You learned your first language by hearing it used, not by studying tables.
- 01
Hear it
Hear a natural sentence at your level, first in your language, then in the one you are learning.
- 02
Say it / Write it
Repeat it aloud right after the voice, hands-free on a walk, or type it when you want to be exact.
- 03
Remember it
Spaced repetition brings each sentence back just before you would forget it.
Practise however you want.
Want to speak? Shadow. Want to write? Type. Want input while you cook? Turn on Radio.
Your own sentences
Learn the sentences you’ll actually use.
Start with sentences at your level, then add your own.
- Ask the chat
- Describe a situation, or name a word you keep missing. The chat writes sentences that practise exactly that.
- Type them
- Add a sentence whenever you meet one you want to keep.
- Import a spreadsheet
- Drop in a CSV, TSV, or Excel/Sheets file; audio is generated for you.
“My absolute favorite feature is the ability to add custom cards.”
Progress
Stay motivated in the long run.
Every word you know, each one tappable back to the sentence you learned it in, and a forecast of where you are heading at your pace.
You know 972 words. Tap one.
Learned in
Mi amigo vino a la fiesta.
My friend came to the party.
Él es un buen amigo.
He is a good friend.
Your forecast
- ~2,400 words a year from now
- Next level (B1) in ~9 weeks
- ≈ 12 new words per session
- streak
- 24
- reviews
- 847
- sentences
- 312
- time
- 14 h
Languages
One method, 70+ languages.
Native-quality generated audio in every language. Tap one to hear three sentences.
Español · Spanish · Spain, Latin America, Mixed
Buenos días, ¿cómo está usted?
good days, how is you
Good morning, how are you?
¿Nos trae la cuenta, por favor?
to-us you-bring the bill, for favor
Could we have the bill, please?
¿Podríamos ver la carta, por favor?
we-could see the menu, for favor
Could we see the menu, please?
- Missing a language? Let us know
What learners say
“I've tried plenty of language apps over the years, including Memrise, Busuu, Clozemaster and Glossika, but Flexling is the one that's finally got it right.”
“I think Flexling is perhaps the most powerful language learning tool I've ever found, and I'm genuinely thrilled to be a user of Flexling. I'll be recommending it to all of my readers and students.”
“Language learning requires both brute force (you need a lot of exposure), and the ability to creatively engage with the language you are learning. Flexling hits the spot with both. It is also beautifully and meticulously designed, making it a pleasure to use.”
“I am impressed by the many ways the app can be customized to suit individual needs. I can import my own sentences and modify them to express exactly what I want to say.”
Pricing
Start free, upgrade once you know it works for you.
Every plan has the same sentences and high quality audio. Choose a higher plan if you want more customisation and AI features.
Free
Try the method.
€0/forever
Start free- 100 credits to start, then 20 a month
- 1 course
- 200 AI-graded answers to start
- 250 sentences to start, then 50 a month
- Detailed statistics
Basic
One language with some customisation.
€6/month
€72 billed annually
Choose Basic250 credits a month
- 1 course
- Unlimited AI-graded answers
- Unlimited ready-made sentences
- Detailed statistics
Pro
Most popularUp to 3 courses and 3 languages per course.
€12/month
€144 billed annually
Choose Pro500 credits a month
- Up to 3 courses
- Up to 3 languages per course
- Unlimited AI-graded answers
- Unlimited ready-made sentences
- Detailed statistics
Max
Up to 10 courses and even more customisation and AI access.
€18/month
€216 billed annually
Choose Max1,000 credits a month
- Up to 10 courses
- Up to 3 languages per course
- Unlimited AI-graded answers
- Unlimited ready-made sentences
- Detailed statistics
Ultra
Maximum customisation and priority support.
€24/month
€288 billed annually
Choose Ultra2,000 credits a month
- Up to 10 courses
- Up to 3 languages per course
- Unlimited AI-graded answers
- Priority access to new features
- Priority support
- Unlimited ready-made sentences
- Detailed statistics
One credit can be used to add one custom sentence or send approximately one chat message among other features. All prices include VAT where applicable. Paid plans are sold by Stripe as merchant of record.
Questions
Questions people ask.
What is Flexling?
Flexling is a language learning app built around real sentences and spaced repetition, using the same algorithm as Anki. Unlike traditional apps, you can learn hands-free with Shadowing while commuting, exercising or doing chores.
It also lets you add your own content, so you learn the sentences you actually care about.
How does Flexling work?
Flexling gives you three ways to learn the same sentences: Shadowing, Writing, and Radio.
With Shadowing, you listen to a sentence in your language and translate it in your head. Then you hear how it is said in the language you are learning, say it out loud, and hear it again to correct yourself. It works hands-free if you like.
With Writing, you type the sentence. Your spelling is marked letter by letter, then AI checks the meaning, and other valid wording is saved as an accepted answer. You can translate a sentence you hear in your language, or type exactly what you hear in the language you are learning, like a dictation. Radio plays your sentences and their translations one after another, for listening in the background.
If you don't understand a sentence or have a question, ask the chat, for example "How can I say this more politely?" or "Give me 3 more examples with this verb in a different tense." It writes new sentences with audio for you.
The audio is native-quality generated speech, made for every sentence.
Can I add my own sentences?
Yes, in three ways: type them in one at a time, import many at once from a CSV, TSV or pasted spreadsheet (Excel, Numbers, Google Sheets), or ask the chat to write them.
For an import, match the columns in your file to your course languages, and Flexling generates the audio and everything else.
How long does it take to get fluent?
Fluency depends on many factors: the language, your native language, daily practice time, and learning methods.
The goal of Flexling is to give you all the tools you need to learn it as fast as possible. For instance Flexling teaches you new words in the order they appear most commonly. This way you can become fluent faster in more contexts because you learn the most frequent words first.
However, Flexling is not a full language course but rather the most efficient companion to one. If you already know the basic grammar or are currently doing a course, Flexling is likely the right app for you.
What languages does Flexling support?
You can learn the following languages in Flexling: English, Spanish (Spain, Latin America, and a mixed Spain + Latin America variant), Catalan, French, German, Italian, Romanian, Portuguese (Brazil and Portugal), Dutch, Swedish, Norwegian (Bokmål), Danish, Icelandic, Irish, Finnish (written, spoken, and a mix of both), Estonian, Latvian, Lithuanian, Greek, Polish, Czech, Slovak, Ukrainian, Croatian, Serbian, Slovenian, Bulgarian, Macedonian, Albanian, Hungarian, Russian, Georgian, Hindi, Bengali, Nepali, Punjabi (Gurmukhi), Tamil, Telugu, Malayalam, Hebrew, Turkish, Persian, Arabic (Modern Standard plus Saudi, Egyptian, Iraqi, and Levantine dialects), Chinese (Simplified and Traditional), Cantonese (Simplified and Traditional), Japanese, Korean, Vietnamese (Northern and Southern), Thai, Burmese, Indonesian, Malay, Filipino, Uzbek, and Swahili (Kenya and Tanzania). More languages are added regularly.
Is your language not supported? Let us know and we will try to prioritise it.
Why is Flexling a subscription?
Running AI models for voice generation and the chat has ongoing costs. You can try it for free and see if it works for you.
Learners tell us it saves them time: they learn sentences they care about, add sentences in seconds, and practise on the go.
Is Flexling free?
Yes, there is a Free plan: 250 ready-made sentences to start, then 50 a month, plus 100 credits to start, then 20 a month. For more, pick Basic, Pro, Max or Ultra.
Where do your sentences come from?
A lot of our sentences are from Tatoeba's massive dataset, released under a CC BY licence.
Some of the sentences have been created by us.
Can I download Flexling as an app?
You can install Flexling from your browser today, on iOS, Android and desktop. Native apps for the App Store and Google Play are on the way.
Put your headphones on and start speaking.
It runs in your browser and installs like an app on iOS, Android and desktop.
For creators and teachers
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or write to [email protected]
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