I LLC / i.cheolm.in

We build software that decides what to study first.

I LLC designs and operates study tools for students who have more material than time. Our software reads the documents a course really hands out and turns them into something a student can practise against.

What we operate Company details

Registered
Colorado, United States
Founded
July 2026
Headquarters
Denver, CO

More material than time is the real problem.

Students rarely fail for lack of material. They fail because a semester hands them more than anyone could read, and nothing in that pile says which part will be asked about. Every hour spent on the wrong page is an hour that cannot be spent on the right one.

So we do not build another place to keep notes. We build tools that read what a course actually distributed, work out which parts have a history of being examined, and put those parts in front of a student as questions rather than as more reading.

Doing that means handling the material as it really arrives, which is to say scanned, uneven, and rarely tidy. A tool that only works on clean input is a tool that does not work.

학생이 시험을 망치는 이유는 자료가 없어서가 아닙니다. 한 학기가 다 읽을 수 없는 양을 주는데, 그중 무엇이 나올지는 아무도 알려 주지 않기 때문입니다. 저희는 필기를 모아 두는 곳을 하나 더 만드는 대신, 수업이 실제로 나눠 준 자료를 읽고 출제된 이력이 있는 부분을 찾아 문제로 만들어 보여 줍니다.

What we operate

SnapQuiz

SnapQuiz reads the documents a course actually hands out, connects a lecture to the exams that follow it, and turns what is likely to be asked into practice questions.

스냅퀴즈는 수업이 실제로 나눠 주는 자료를 읽고, 강의를 그 뒤에 오는 시험과 연결한 다음, 물어볼 만한 것을 문제로 만듭니다.

BLANK

BLANK is a weekly problem set for the mathematics section of the Korean college entrance exam, covering Mathematics I and II. Its solutions are written in the first person, as a friend comparing working rather than a textbook presenting a proof.

BLANK는 수능 수학 영역을 위한 주간지 N제입니다. 수학Ⅰ과 수학Ⅱ를 다루며, 해설을 증명이 아니라 옆에서 풀이를 견주는 사람의 자리에서 1인칭으로 씁니다.

Three things we hold to

Judgement, not storage

There is no shortage of places to put notes. What a student under time pressure needs is a decision about what to read first. That decision is the product.

필기를 둘 곳은 이미 많습니다. 시간에 쫓기는 학생에게 필요한 것은 무엇을 먼저 읽을지에 대한 결정입니다. 그 결정이 제품입니다.

Real documents, not samples

The software is built against the material courses really distribute, including scanned handouts and past papers of uneven quality, because that is what a student has.

수업이 실제로 나눠 주는 자료로 만듭니다. 스캔본과 상태가 고르지 않은 족보까지 포함합니다. 학생이 가진 것이 그것이기 때문입니다.

Finish what ships

A feature that is visible is a feature that works. We do not ship a screen that stands in for something we intend to build later.

보이는 기능은 동작하는 기능입니다. 나중에 만들 것을 대신하는 화면을 내보내지 않습니다.

Sites operated by I LLC

snapquiz.cc is owned and operated by I LLC. blank.lu is owned and operated by I LLC.

위 도메인은 I LLC가 소유하고 운영합니다. 해당 서비스에 관한 문의는 i@cheolm.in로 보내 주시면 됩니다.

Registered details

Legal name

I LLC

Entity type

Limited Liability Company

Jurisdiction of formation

Colorado, United States

State entity ID

20261867962

Principal office

1500 N Grant St, Ste R, Denver, CO 80203, United States

Getting in touch

Questions about the company, about any service we operate, or about working with us can go to the address below. We read everything that arrives there.

i@cheolm.inFull company details