Private, on-device AI for Android
Your AI. Your device. Nothing else.
isolaite thinks entirely on your phone. Answers, document understanding, image recognition and dictation happen locally — no cloud, no account, no subscription.
Play Store release in preparation · internal test track running iOS — a future edition
- IThe architecture of privacyon-device inference
- IIPlates — a look insidefigures 1–3
- IIIThe enginestate of the art, local
- IVYour knowledgememory & retrieval
- VThe pricenine euros, once
- VIFootnotesquestions, answered
Privacy here is not a setting. It is the architecture.
There is no server anything could be sent to. isolaite ships neither analytics nor advertising SDKs, asks for no account, and after the one-time model download it works in airplane mode. What follows is not a feature list so much as a description of what the app deliberately cannot do: it cannot leak what it never transmits — and it cannot read what you never hand it.
- Entry 01On-device inference
- Every answer is computed on your phone, by the model itself. After setup, flight mode changes nothing.
- Entry 02Sees only what you hand it
- isolaite never scans your storage, photos or messages. Nothing is ingested automatically — the only way in is you, attaching or importing it.
- Entry 03Understands documents
- Attach PDFs and text, then ask. What you hand the app is parsed and indexed in its private storage — and nowhere else.
- Entry 04Sees and listens
- Image understanding and dictation, computed by the model on your phone — not by a cloud speech service. Never stored, never transmitted.
- Entry 05State of the art, two sizes
- The strongest open models that fit on a phone — compact or full, switchable mid-chat, updated as the field moves. See Appendix A.
- Entry 06News, offline
- A dated snapshot of the world arrives with every app update — read from disk, never fetched over the network.
- Entry 07No connectors
- No integrations, no add-ons, no third-party services wired to the internet. There is nothing to phone home with.
- Entry 08Paper and ink
- One light theme, two dark ones, four accent colours. Quiet enough for long reads.
A look inside.
Plates reproduced at reduced scale from the Android application.
State of the art, in your pocket.
isolaite runs the strongest open models that fit on a phone — in two sizes, a compact everyday model and a larger one for capable devices, switchable mid-chat. As better open models arrive, isolaite moves with them. The appendix records what ships today.
| Compact · E2B | Full · E4B | |
|---|---|---|
| Character | The everyday default | More headroom on capable phones |
| Size | approx. 2.4 GB | approx. 3.4 GB |
| Context | 32K tokens | 32K tokens |
| Memory | from 6 GB RAM | from 8 GB RAM |
| Delivery | One-time download during setup, verified by SHA-256 — or fully offline via file import. | |
Model names, sizes and requirements describe the current release and will change as stronger open models ship.
“What you entrust to isolaite never leaves your device — not even when it remembers it.” — the design principle
- Memory“Remember that …”
- Say it once, and isolaite has it ready in every new chat. Stored on this device only.
- RetrievalSemantic search
- The PDFs and notes you import are indexed locally — semantically and lexically — and drawn on while answering. You choose what goes in; nothing is added on its own.
- ErasureDelete means delete
- Uninstalling removes everything. No copy exists off-device; system backup is disabled.
Buy once. That's it.
No subscription · no in-app purchases
- Both model sizes, all themes, every feature
- News snapshots with each app version
- No ads, no analytics, no accounts
- Models from Hugging Face — or via offline import
Price includes VAT, billed through Google Play. Availability and final price may differ by country. iOS — a future edition.
Answered briefly.
Does isolaite really need no internet?
Only once: to download the AI model during setup. After that the app works fully offline. If you prefer, import the model as a file and never go online at all.
Where are my chats stored?
Exclusively in your device's private app storage. There is no server, no sync and no system backup.
Is there a subscription?
No. A one-time purchase of €9, with no further costs and no in-app purchases.
What happens to my voice during dictation?
The recording is transcribed on-device, never stored and never transmitted. The app asks explicitly before first use.
Does isolaite read the files on my phone?
No. It never scans your storage, photos or messages. It only sees what you actively attach or import into the app — and that stays in the app's private storage.
Are there connectors or integrations?
None, by design. No add-ons, no plug-ins, no third-party services that talk to the internet.
Which models does it run?
State-of-the-art open models, always local. Today that is Google Gemma 4 as E2B or E4B via LiteRT-LM, verified by SHA-256 on download — and as stronger open models arrive, isolaite moves with them.