Mister F

For independent English teachers and tutors

Turn every assignment into guided practice — and reach your next class knowing what to review.

For teachers and tutors who teach English to adults. Built around your own material: no school platform, no imposed curriculum.

Create your first activity Try an example activity

Every new account starts with a balance to try it. No credit card.

Responses summary

Example

Making a clinic appointment · A2

6 responded · 5 evaluated

  1. #1

    Complete: “I ___ like to make an appointment.”

    5/5 correct

  2. #2

    Answer: “Have you been here before?”

    2/5 correct 3/5 to improve

  3. #3

    Put the words in order to ask for another time.

    3/5 correct 2/5 to improve

AI summary What is worth reviewing in the next class

See it in 30 seconds

Open the example activity the way one of your students would: answer it on your phone, no account needed. Create a free account when you want to see the evaluation and the practice that follows.

Example activity

A meeting at your child’s school B2

Open the example

One of ten example activities, picked at random.

How it works

  1. Start from your material

    Paste your text, the topic, or the homework you had already planned — what you are about to teach, or what you just taught. The first draft of the activity comes from that.

  2. Review the activity

    Read what it generated and adjust anything before it reaches your students. Nothing is shared until you say so.

    Multiple choice, fill in the blank, word order, matching, open answer: nine kinds of exercise in all.

  3. Share a link

    Send it by WhatsApp or however you already talk to your class. Your students open it on their phone — nothing to install.

  4. They get feedback, then practice

    Each student is evaluated as soon as they finish, and can keep practicing exactly what they got wrong, without waiting for you.

  5. You see how the class did

    Who responded, which questions they missed, and an AI summary of what is worth reviewing together. Ready before you walk in.

The same flow, three formats

  • Quiz

    Questions your students answer, evaluated one by one. It is what the steps above describe.

  • Practice Guide

    You set the goal and how the tutor should help. Your student practices by talking with Mr. F, guided by what you asked for.

  • Roleplay

    A situation with characters. Your student takes a part, holds the conversation in English, and is evaluated at the end.

What Mister F is not

  • It is not an LMS. There is nothing to migrate and no course to set up.
  • It does not impose a curriculum or a textbook. Your material leads.
  • Your students install nothing. They open a link.

Who is behind Mister F

Mister F is built by Arian Fornaris, a software developer who moved to South Florida in 2023 and learned English as an adult — like the students it is made for.

The real Mister F is his father, who taught English for decades in Cuba and teaches it today in Florida. His way of following a student outside of class is the idea the product is built on, and the tutor your students practice with carries his name: Mr. F.

Operated by Little Software LLC, Florida, United States.

An open pilot, with real teachers

The pilot started with independent teachers in South Florida and is open to any teacher who wants to use it. The product is still being shaped with the people using it, and you would be talking to the person building it.

What it costs

Mister F runs on credits. Every new account starts with a balance, enough to explore the product and run an activity end to end; after that, credits are bought in USD 5 packages. No subscription, and nothing is charged until you choose to buy.

Tell me about your class

Learning on your own?

You do not need a teacher to use it. Practice with Mr. F, get corrected as you go, and keep a record of what you are improving.

Practice with Mr. F

Questions

Do my students need an account?

They can open a shared activity and answer it without one. An account is needed to see the evaluation and to keep practicing, and it is free to create.

Does it work with my own material?

That is the point. You paste your text, topic, or assignment and the activity is built from it, not from a fixed catalog.

Do I have to use it after class?

No. Send an activity before a lesson to see where the difficulty will be, after it to practice what went wrong, or between sessions so your students keep going on their own.

What if the AI gets something wrong?

You review every activity before sharing it, and you can change what you do not like. Nothing reaches your students unreviewed.

Which languages does it support?

The practice is in English. The interface and the explanations are available in Spanish, English, and Haitian Creole.

Do I need to install anything?

No. It runs in the browser, on a phone or a computer, for you and for your students.

How many students can I have?

There is no roster to set up. You share a link with whoever you want, and you see the results of everyone who completes it.

Data and privacy

  • The pilot runs with adult learners only.
  • When you share an activity that collects results, your students see a clear notice before they answer.
  • You can also share an activity without collecting anything.
  • Your material stays yours.
Read the privacy policy

Turn every assignment into guided practice — and reach your next class knowing what to review.

Create your first activity

Every new account starts with a balance to try it. No credit card.