Read at the speed of you.
A free, voice-first reading tutor for kids ages 5–9. Built on the Science of Reading. Designed for one child at a time — yours.
Hear Lumi
“Hello! I’m Lumi. Let’s practice together. Listen to the word cat. Can you hear the first sound?”
Three things every kid deserves in a reading app.
Voice-first
Spoken instructions help your child get started. Replay a prompt whenever needed. Audio loading time depends on your device and connection.
Truly adaptive
Lumi watches every attempt and accelerates, slows down, or scaffolds in real time. No two sessions look the same.
Remembers your child
Tomorrow, Lumi greets your child by name and picks up exactly where they left off — including the sounds they confused yesterday. Their progress stays private.
Short practice sessions, paced for your child.
Tap the firefly.
Lumi greets your child by name.
Lumi speaks.
Every instruction is voiced — no reading needed.
Six task types.
Tap, drag, build, sequence, flash, sound-match.
Engine adapts.
Fast-forward on streaks. Scaffold on misses. Spaced review.
Ring closes.
Finish a practice run, or stop whenever your child needs a break.
Tomorrow.
Lumi remembers and picks up exactly where you left off.
Built on the Science of Reading.
Not a tech demo. A curriculum grounded in the converged evidence base on how children learn to read.
Simple View of Reading
Reading = Decoding × Language Comprehension. Lumi addresses both.
Scarborough's Reading Rope
Phonemic awareness, decoding, sight recognition, vocabulary, fluency, comprehension — interleaved daily.
Ehri's phases of word reading
Pre-alphabetic → consolidated-alphabetic. Lumi's Level 5 targets the full-alphabetic phase.
National Reading Panel five pillars
Every session touches at least two pillars.
Curriculum alignment
UFLI Foundations
Free, ESSA-aligned phonics scope from the University of Florida.
Lexia Core5 Levels 5–12
Practice foundational K–3 reading skills alongside your school's curriculum.
ESSA Tier III
Targeting Promising Evidence certification through our first school pilots.
Choose a way to learn
Reading
Practice sounds, words, and comprehension with spoken instructions and feedback.
Explore reading →Finish all 15 activities in a learning session to earn 10 minutes of ARC. Mastery progress is tracked separately. The allowance starts when your child chooses Play. Lumi closes its embedded game when time runs out; ARC is also a separate public website.
We treat your child's data like ours.
Read our published privacy policy and data inventory to understand what Lumi stores and how to manage it.
- Parent consent before creating a child profile
- School data arrangements reviewed before deployment
- Published data inventory
- No sale of child data
- No advertising in child lessons
- Parent access and deletion controls
- No independent privacy certification claimed
- Public data inventory at /compliance
No advertising. Ever.
No selling child data.
No AI training on child data.
What Lumi doesn't do.
Doesn't replace your child's teacher.
Lumi is a daily practice tool, not a curriculum. Your child's teacher matters more.
Doesn't diagnose dyslexia or learning differences.
If you suspect a learning difference, see a specialist. Lumi flags patterns we notice but is not a clinical tool.
Doesn't promise specific test scores.
Reading growth depends on many factors. We can't guarantee a specific NAEP, MAP, or DIBELS outcome.
Doesn't work offline yet.
Internet required. Native iPad with offline mode is on the 2026–27 roadmap.
Lumi was built by a parent. For a kid named Remi.
I'm Tim — a thirty-year software engineer, founder of an AI agency, and dad to a five-year-old named Remi. Remi was bored with the reading app at his school. So I built him something better. Then I made it free for every kid because reading is a right, not a paywall.
Lumi is operated by Digital Boutique AI. We use the same stack we build for paying clients. The difference is this one is for kids.
Teaching K–2? Let's pilot Lumi at your school.
Free fall 2026 pilots open now. We provide the app, onboarding, dashboards, and direct founder support. You provide one to three K–2 classrooms and a willingness to use NWEA MAP or DIBELS for pre/post assessment.
Already have a school in mind? Forward our one-pager to your literacy coach or lower-school head.
- Free app + curriculum
- Teacher dashboards (Phase 5)
- Direct founder onboarding
- Pre/post NWEA MAP or DIBELS support
- School data arrangements reviewed before deployment data flows
Free for every family. Forever.
Create a profile and start a Lumi session. No credit card. No ads. No catch.