Blog

Method, data, and what it actually takes to reach fluency.

UX vs. User Results: Why the App Should Feel Bad

The EdTech industry optimizes for how learning feels. This app optimizes for whether it works. Those are not the same thing, and the difference shows up in the data.

How to Measure Fluency: 14 Months of Cold-Start Data

The only honest measure of language fluency is your success rate on audio you have never heard before. Here is 14 months of real data, from zero to C1 in Romanian.