ternii
Everyone 10+
info
5+
Downloads
About this app
ternii is a private assistant that runs entirely on your phone.
No account, no sign-in, no cloud. By default nothing you type, say or attach ever leaves your device - it works in aeroplane mode.
CHOOSE YOUR MODEL
Every model is ternary and runs on the handset. Pick one when you start, and add or swap models any time.
- Bonsai 1.7B by PrismML (recommended): small (0.46 GB) and fast.
- Bonsai 4B by PrismML: stronger answers at about half the speed, for phones with 3 GB of memory or more.
- Bonsai 8B by PrismML: the strongest Bonsai, for phones with 8 GB of memory or more.
- BitNet 2.4B by Microsoft: strong, fast English answers.
- Brain 1.1 and Brain 2.2 Early Preview: Middletech's own models, built from scratch.
A CONVERSATION, NOT JUST ANSWERS
- Follow-up questions remember the chat: ask "what's its population?" and ternii knows what "it" is.
- Choose how much of a long chat the model reads, in Settings → Model.
A PANEL OF EXPERTS
- Maths, physics, chemistry, biology, medicine, law, code and more.
- Arithmetic is calculated, not predicted.
- It tells you when it is not confident instead of guessing.
PRIVATE BY DESIGN
- No account. No tracking. No advertising. No ad identifiers.
- Conversations, notes and files stay on the device, encrypted at rest.
- Optional connectors - calendar, weather, headlines, contacts - are each opt-in and read locally on the phone.
- A web lookup sends only your query, and only when you ask for one.
THIS IS AN EARLY BETA
ternii is fast, small and private, but it is early and it can be wrong. Please tell us what breaks: ai@ternii.com
Storage: the model downloads once on first run - about 0.5 GB for Bonsai 1.7B, up to 2 GB for Bonsai 8B - so use Wi-Fi.
Middletech Limited
No account, no sign-in, no cloud. By default nothing you type, say or attach ever leaves your device - it works in aeroplane mode.
CHOOSE YOUR MODEL
Every model is ternary and runs on the handset. Pick one when you start, and add or swap models any time.
- Bonsai 1.7B by PrismML (recommended): small (0.46 GB) and fast.
- Bonsai 4B by PrismML: stronger answers at about half the speed, for phones with 3 GB of memory or more.
- Bonsai 8B by PrismML: the strongest Bonsai, for phones with 8 GB of memory or more.
- BitNet 2.4B by Microsoft: strong, fast English answers.
- Brain 1.1 and Brain 2.2 Early Preview: Middletech's own models, built from scratch.
A CONVERSATION, NOT JUST ANSWERS
- Follow-up questions remember the chat: ask "what's its population?" and ternii knows what "it" is.
- Choose how much of a long chat the model reads, in Settings → Model.
A PANEL OF EXPERTS
- Maths, physics, chemistry, biology, medicine, law, code and more.
- Arithmetic is calculated, not predicted.
- It tells you when it is not confident instead of guessing.
PRIVATE BY DESIGN
- No account. No tracking. No advertising. No ad identifiers.
- Conversations, notes and files stay on the device, encrypted at rest.
- Optional connectors - calendar, weather, headlines, contacts - are each opt-in and read locally on the phone.
- A web lookup sends only your query, and only when you ask for one.
THIS IS AN EARLY BETA
ternii is fast, small and private, but it is early and it can be wrong. Please tell us what breaks: ai@ternii.com
Storage: the model downloads once on first run - about 0.5 GB for Bonsai 1.7B, up to 2 GB for Bonsai 8B - so use Wi-Fi.
Middletech Limited
Private AI that runs entirely on your phone. No account, nothing leaves it.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- This app may collect these data typesApp info and performance and Device or other IDs
- Data is encrypted in transit
What’s new
- Follow-up questions now remember the conversation: ask "what's its population?" and ternii knows what "it" is (Bonsai and BitNet models).
- Longer conversations: pick a larger context window for Bonsai models in Settings → Model.
- Faster replies to follow-ups: ternii gets the conversation ready in the background.
- Fuller essays and long answers.
- New model: Bonsai 8B by PrismML, the largest Bonsai, for phones with 8 GB of memory or more.
- Longer conversations: pick a larger context window for Bonsai models in Settings → Model.
- Faster replies to follow-ups: ternii gets the conversation ready in the background.
- Fuller essays and long answers.
- New model: Bonsai 8B by PrismML, the largest Bonsai, for phones with 8 GB of memory or more.
App support
About the developer
WAI HUNG CHUNG
antdel@antdel.com
United Kingdom