NoteNest is now Wren

Notes that study with you.

Write your notes on iPad. Wren pins graphs, summaries and practice questions beside them, answers questions from what you wrote, and turns your notes into study guides and flashcards.

Trusted by 10,000+ students at 50+ universities

Three things Wren does for you.

Notes that grow stickies. Agents that build study material. A tutor that only knows what you wrote.

AI Notes with Stickies

Handwriting that does more.

Write with Apple Pencil like you always have. Pause, and Wren pins a graph, a summary or a set of practice questions next to what you just wrote.

Mind map

AI Agents

Your notes, turned into study material.

Give an agent a goal and it reads your notes and files, then builds a real note you can edit. You see what it read before anything is saved.

Flashcard setComplete
  • Reading 3 notes
  • Building flashcards
  • Done. 24 cards ready.

AI Tutor

Answers from what you wrote.

Ask a question and the tutor answers from your own notes, with the page it came from. It tells you when your notes do not cover something.

Why does the ratio test fail at L = 1?
Your notes say the test is inconclusive there, so you compare with a p-series instead.Lecture 7 · p.2

How Wren works.

Write or import.

Handwrite with Apple Pencil, type in Document Mode, or drop in your lecture slides and PDFs.

Wren works beside you.

Pause your pen and Wren offers a sticky about what you just wrote, which you keep or discard.

Study from your own words.

Turn any note into a study guide, a flashcard set or a practice exam you can take.

Twelve kinds

Every kind of sticky.

Pause your pen. Keep what helps, discard the rest.

Graph

Mind map

Flowchart

Diagram

∑ n=1∞ aₙ rⁿ

Formula

def ratio(a):
    return a[n+1] / a[n]
# converges if < 1

Code

Timeline

  • Read ch. 4
  • Redo problem 7
  • Office hours Thu

Checklist

Series converge when terms shrink fast enough. Ratio test checks the rate; p-series sets the bar.

Summary

osmosis · n.

Water moving across a membrane toward higher solute concentration.

Definition

Image

Sketch

Graph, Mind map, Flowchart, Diagram, Formula, Code, Timeline, Checklist, Summary, Definition, Image and Sketch. Each one lives on the page next to the ink that made it.

AI Agents

Outputs, not busywork.

Agents turn the notes you already took into the study material you were going to make anyway.

  1. Set a goal.

    "Make me a study guide for the midterm." That is the whole prompt.

  2. The agent reads your notes.

    Handwritten pages, typed docs, the PDFs in your Resource Hub. Nothing outside your class.

  3. It builds a real note.

    Not a chat reply. A note in your notebook you can edit, mark up and add stickies to.

  4. You see what it read.

    The progress view lists every note and file it used, then waits for you to confirm.

Study guide
Flashcard set
Practice exam
Learning path
Essay outline
Cornell notes
Glossary
Research brief
Lab report

Agent run

Study guide · read 4 notes, 2 PDFs · 38s

Lecture 10, Lecture 11, Problem set 4, Review session · syllabus.pdf, ch7-slides.pdf

Tutor and Exam Mode

Ask. Then test yourself.

One answers from your notes. The other checks whether you learned them.

AI Tutor

Ask your notes.

The tutor answers from what you wrote and tells you where it found it. No made-up sources, no answers from outside your class.

What should I study tonight?

Your exam is Thursday and your weakest section is membrane transport. Start with osmosis and the two active-transport pumps, then redo problem set 3.

Bio 180 · Lecture 12Problem set 3

Exam Mode

Practice before it counts.

Wren writes a practice exam from your notes, times it, grades it and shows you what to review. Then it builds the next one around what you missed.

Practice exam · 12 questions

9/12

Review these

  • Q4Osmosis vs diffusion across a membraneReview
  • Q9Which pump uses ATP directly?Review
Resource Hub and Calendar

Drop in the syllabus. Get a schedule.

Your files feed the tutor and the agents. Your dates feed the calendar.

Resource Hub

Everything for the class, in one place.

Drop in the syllabus, slides and readings. Wren reads them, so the tutor and agents can use them, and it pulls out every date it finds.

  • Syllabus.pdf

    Bio 180 · 6 pages

    PDF

  • Lecture 4 slides

    Membrane transport

    Slides

  • Reading week 3

    Campbell ch. 7

    Reading

Found 6 dates. Add to calendar?

Calendar

Deadlines land where you will see them.

Exams, due dates and study sessions sit next to your notes. Wren counts down to the next one and suggests when to study.

Mon9
Tue10
Wed11
Thu12
Fri13
Sat14
Sun15
Calc midtermin 3 days
Study session · Series and tests7–8 pm

Made by a brother and sister, between lectures.

We're both in college and built Wren for our own classes. Every feature exists because one of us needed it before an exam.

University of Washington

Questions, answered.

What happened to NoteNest?
Same app, new name. Wren is NoteNest. Your notes, account and subscription carry over. There is nothing you need to do.
Which devices does Wren run on?
iPad and iPhone. It is best on iPad with an Apple Pencil, which is where the stickies and handwriting features shine.
Is Wren free?
Wren is free to download and use. A Pro plan unlocks heavier AI use, like more agent runs and longer tutor sessions. Pricing is shown in the app.
Does Wren use my notes?
Only to answer your questions and build your study material. Your notes are not used to train models. Details are in our privacy policy.
Is there a web version?
A web app is in progress. Join the waitlist and we will tell you when it is ready.

Wren on the web is coming.

Leave your email and we'll tell you when it's ready.

Join 2,000+ students on the waitlist

Notes that study with you.

Download on the App Store

Free on the App Store, built for iPad.

Wren