TL;DR
The Typly 5.x release we shipped in 2026 is a complete rebuild of the app. We dropped third-party keyboard SDKs and built our own engines:
- Glide typing engine — context-aware, with personalized swipe reranking.
- Word prediction engine — running in 41 languages, fully offline.
Text never leaves the phone. Models ship from our own CDN — an iteration reaches the user in hours, not weeks.
Why a rebuild
The old stack had three limitations:
- Model cycle = App Store cycle — every retrain was days of review.
- All languages in the APK — unnecessary weight, even though users typically run 2–3.
- No control over swipes — candidates came from a stock reranker, with no conversation context.
In 2026 we swapped both engines for our own, keeping the same AI features (Generate, Reply, Processing, Bundles, Dating).
Glide typing — our own implementation on open foundations
We built our glide engine on open standards and solid open-source foundations, which we then rewrote and tuned. We layered two signals on top that most competitors don't:
- Conversation context — the model uses the last few words. Gestured "go" after "alright, then we'll" decodes as "go", not "got".
- Per-user personalization — candidates the user historically picked or rejected get reranked locally. No swipe leaves the device.
Glide runs per language with a dedicated vocabulary for each — so it works in PL, DE, ES, FR with the same quality.
Word prediction in 41 languages
An ultra-light prediction model gives instant suggestions on a mobile CPU, with no GPU and no cloud. Memory-mapped, lookups are instant.
Models live on our CDN, decoupled from the release cycle. The app downloads only the user's selected languages. Versioned via manifest, validated against OOM/zip-bomb.
Effect: Polish-model iteration in the morning → on user phones by noon.
What it means for the user
- Faster suggestions — predictions appear instantly.
- Better swipes — they take conversation context into account.
- Full privacy — text never leaves the phone.
- Dictionary updates in hours — no store update.
The AI features (Generate, Reply, Processing, Bundles, Dating) all still work — on a cleaner, faster foundation.
Typly is a Polish AI/NLP company. We build our own language engines, AI keyboards for 41 languages, an invoice hub for business, and a correspondence-dispatcher platform for public administration.