A comprehensible input app built from your real life

What to look for in a comprehensible input app

The whole idea of comprehensible input is language you can nearly follow, so the job of an app is to keep you inside that i+1 band, understanding most of it while stretching for a little. A few things decide whether an app does that:

• Sentences at your level, not a fixed textbook. New material should build on what you already know, not drop you into a chapter you're not ready for.
• Native audio on everything. Comprehensible input is mostly a listening skill. Text-only defeats the point.
• The right dialect. Input in the wrong variety trains the wrong ear. Learning for Portugal off Brazilian audio is a slow way to stay lost.
• Something that makes it stick. Input plus spaced review beats input you meet once and forget.

The honest limit of any CI app

Here's the part the app-store listings skip. When purists say comprehensible input, they mean hundreds of hours of listening and watching real material, the Dreaming Spanish way. No app replaces that, and five minutes a day won't either. The Input Hypothesis is about volume of understandable messages, and volume takes real time.

So we don't pretend to be your only input. What TangoLango is genuinely good at is the vocabulary and ear-training side: making each sentence comprehensible by keeping it to words you know plus one, and drilling your decoding on native audio card by card. Use us for that, and get your hours from real listening on top. That pairing works far better than either alone.

How TangoLango does comprehensible input

In the app, your tutor builds sentences around your actual week, and you can ask it in plain English for what you need ("how do I say the boiler is leaking?"). It sends back the sentence a local would really use, keeps it to words you already know plus one new element, and records it in a native voice for your dialect track. Then it schedules that sentence to come back right before you'd forget, on the same FSRS engine that sits inside Anki. Over a few weeks your deck becomes the language your life keeps demanding, every sentence still inside i+1.

Other CI apps take a different route and some are good at it. Media players like Language Player, and immersion libraries like Dreaming Spanish, put you in front of hours of real video with help layered on top, which is closer to the purist ideal. What none of them does is build the input out of your own vocabulary and your own week, in one strict dialect, with the review scheduling built in. That's the gap we fill. For the method behind all this, including the honest take on Krashen's critics, see our full guide to comprehensible input and the i+1 method.

Frequently asked questions