AI roleplay · iOS and Android

Become the protagonist. Shape what happens next.

Oncilo is an AI roleplay and interactive storytelling app built for stories that keep moving. Enter a role, meet a full cast, and turn every action into the next scene.

  • Multi-character casts
  • Create, import, and remix
  • Worldbooks and connected lore

Free to download · Optional in-app purchases

Oncilo scenario library with playable story worlds
An Oncilo interactive story continuing after the player acts

What Oncilo is

AI roleplay built around a complete story.

Character chat starts with a conversation. Oncilo starts with a playable story world. Each scenario can connect your role, a main cast, an opening scene, relationships, important rules, and world information.

You are not limited to selecting a preset response. Act in your own words and the story continues around what you do through prose, dialogue, character reactions, and changing relationships.

What you can do

Enter a story. Then make it yours.

01

Live the novel

Choose who you are, step into the opening scene, and freely decide what your protagonist says or does next.

02

Create a playable world

Start from an original premise, excerpt, synopsis, or world you want to explore. Refine the role, cast, opening, and setting before the story begins.

03

Remix the story

Change your role, the cast, era, relationships, factions, rules, setting, or opening, then save the result as another version.

Oncilo app icon

Bring your characters

Import community-format PNG Character Cards.

Bring supported character personality, greetings, and linked world information into Oncilo. Community-format PNG Character Card V1, V2, and V3 data is recognized. From there, place the character inside a wider scenario, add a cast and opening, or remix the story around them.

Product facts

About Oncilo

Last updated

What is Oncilo?
Oncilo is an AI roleplay and interactive storytelling app. You choose a role inside a playable scenario, act freely, and continue a story through prose, dialogue, relationships, and connected world details.
Is Oncilo a character chat app?
Oncilo includes in-character conversations, but it is designed around story progression rather than isolated chat. A scenario can include a player role, a cast, an opening scene, relationships, rules, and world information.
Can I create or remix stories?
Yes. You can create playable scenarios from an original premise or a story idea, then remix the role, cast, era, relationships, factions, rules, setting, or opening into another version.
Can I import PNG Character Cards?
Yes. Oncilo recognizes community-format PNG Character Card V1, V2, and V3 data and brings supported personality, greetings, and linked World Info into a scenario.
Is Oncilo a mobile SillyTavern alternative?
Oncilo is an alternative when you want a native iPhone and Android story-first app with PNG Character Card import and no model setup. It is not a drop-in replacement for a power-user frontend and does not expose BYOK routing, local inference, Regex scripts, sampler controls, or a configurable prompt stack.
Do I need an API key or local server?
No. Oncilo provides story generation inside the app, so you can start without configuring an API provider, running another computer, or choosing model sampler settings.
Where can I download Oncilo?
Oncilo is available on the App Store for iPhone and on Google Play for Android. It is free to download and offers optional in-app purchases.

Mobile AI roleplay guide · 2026

Choosing between a tavern-style frontend and a story-first app?

See how configurable roleplay frontends, character-chat platforms, and native story-first apps differ on mobile—and where Oncilo fits when you want Character Card import without setting up models or API keys.

Read the 2026 mobile AI roleplay guide

Stories that answer back

Start shaping the story.