Read at the speed of you.
Lumi is a free, voice-first AI reading tutor for K–3. Lumi adapts in real time, remembers your child, and respects their privacy.
Why families choose Lumi
Voice-first
Every instruction is spoken. Your child never needs to read to navigate. Lumi pre-caches audio so first-sound is under a second.
Truly adaptive
A pacing engine watches the last few attempts and speeds up, slows down, scaffolds, or interleaves reviews — no two sessions look the same.
Remembers your child
Tomorrow, Lumi greets your child by name and picks up exactly where they left off. Their progress lives in a private memory just for them.
Built on the Science of Reading
Lumi isn't a chat toy — it's a structured-literacy tutor designed with the same evidence base that pediatric reading scientists recommend.
Structured literacy, not guesswork
Lumi's curriculum follows the systematic phonics scope-and-sequence used in evidence-based programs like UFLI Foundations and Orton-Gillingham. Every skill builds on the last.
Scarborough's Reading Rope, woven daily
Phonemic awareness, decoding, sight words, vocabulary, fluency, and comprehension — Lumi interleaves them deliberately, the way reading scientists recommend.
Aligned to Lexia's Levels 5–12
Picks up exactly where your child's school program left off, with no curriculum gaps.
Lumi was designed using the same evidence base behind UFLI Foundations and CKLA. We're aiming for ESSA Tier III evidence by our first school pilot.
See Lumi in action
A peek at the child's play surface — adaptive, voice-first, no microphone, no chrome.
Real first-sound latency: under 1.2 seconds. Real adaptive pacing. Real longitudinal memory.
Lumi vs. Lexia
| Lumi | Lexia Core5 | |
|---|---|---|
| Voice latency (first sound) | ≤ 1.2s P50 | 2–4s typical |
| AI tutor adapts mid-session | Yes (Claude) | No |
| Remembers child across sessions | Yes | Limited |
| Curriculum framework | Science of Reading (UFLI-aligned) | Science of Reading (proprietary) |
| Personalized to child's interests | Yes — Lumi uses interests in examples | No |
| Microphone usage | None (Phase 1) | Limited |
| Cost | Free for every family | Paid — usually through school |
| Child data used for ads | Never | See their policy |
| Child data used to train AI | Never | See their policy |
| One-click export + delete | Yes | No |
Voice latency measured P50 on Lumi production at lumikids.dev. Lexia comparisons reflect publicly-reported app behavior and App Store reviews as of 2026.
Built for trust
- ✓ COPPA-compliant (2025 amended FTC Rule)
- ✓ No advertising. Ever.
- ✓ No selling or sharing of child data.
- ✓ No AI model training on child data.
- ✓ No third-party trackers on the child's play surface.
- ✓ One-click delete. One-click export.
What Lumi doesn't do
We'd rather be honest about our limits than oversell. Here's what Lumi is not.
Doesn't replace your child's teacher
Lumi is a supplement, not a curriculum. A great reading classroom is still essential.
Doesn't diagnose dyslexia or learning differences
If you suspect a learning difference, please see a qualified specialist. Lumi can support — not assess.
Doesn't promise specific test scores
We're working toward published efficacy evidence. Until then, we won't make claims we can't back up.
Doesn't work offline yet
Internet required in Phase 1. An offline-first iPad app is on the roadmap.