Built around two problems
Reading does not stick. You can read a chapter twice, feel like you have it, and blank on it two days later. Most flashcard apps quietly make that worse by letting you flip to the answer the second it gets uncomfortable, so review turns into recognition and recognition feels like knowing. Quad Encode locks the reveal until you type an attempt. Review is a blank field first, and the card's answer only appears next to what you wrote, in that order.
Finding a path is its own job. A YouTube playlist here, a Reddit thread there, a course paid for and abandoned, three tabs arguing about which objectives actually show up on the exam. That problem comes back every time you start a new subject, and it is worst when there is nobody to ask. Quad Encode ranks the resources on a topic and puts them in an order you can work through, so the evening goes into learning instead of choosing.
Boring is what actually stops people
Hard is survivable. Nobody quits because the material was difficult on a Tuesday night. They quit because they were on the same page for the fourth time and their phone was right there.
So there is a Speed Run and a Concept Matcher. They exist to make an hour bearable, and they deliberately do not touch your review schedule, because winning a game is not proof you remembered anything. The recall is still the work. The games are what get you back to the desk tomorrow.
Who built it
I'm Quad Butler. I went to school for web design and computer science and have been working with AI since 2018. Quad Encode started while I was studying for CompTIA Security+, out of exactly the two frustrations above.
It is a small site with one opinion: the recall is the work, and nothing here should let you skip it.