Runrista is a writing app for iPad, iPhone, and Mac with Apple Silicon. Markdown-first, iCloud-native, and equipped with powerful AI agents that help you think more clearly and write better.
Mac native app coming soon
Build custom AI agents and use them as your personal writing team. Ask questions, get suggestions, brainstorm freely, and fact-check your work without ever leaving the page.
Build your own AI agents with exactly the role and tone you need. Give each one a name, a personality, and choose which model powers it Claude, GPT-4o, or Gemini.
Think out loud with an agent that never judges. Ask for angles you haven't considered, challenge your assumptions, or explore ideas freely before committing to a direction.
Highlight any passage and have it checked against available knowledge. Claims are labelled correct or incorrect, and sources suggested all directly alongside your text.
From real-time style feedback and document organisation to a full version history Runrista keeps you focused on the writing, not the tooling.
Real-time analysis highlights spelling errors, filler words, repetitions, and long sentences directly in the text with one-tap fixes in the side panel.
Projects and documents organised in a clean library, synced automatically via iCloud Drive. Switch between documents without losing your place or your agent conversation.
Every save is kept. Browse the full version history of any document, see exactly what changed, and restore any earlier version with a single tap.
Thirteen handcrafted themes, from cool glacial blues and deep dark canvases to warm amber and earthy tones. Switch instantly and let the look of your workspace set the mood for writing.
Create your own agents tailored to your needs, each with its own role, personality, and model. Stack them, switch between them, and let them work with full context across your entire writing library.
Helps you find the right words when you're stuck, improve sentence structure, and keep the tone consistent throughout your text.
Example agentGives critical, constructive feedback on structure, argument, and flow. Like a friendly but honest editor-in-chief in your pocket.
Example agentThink out loud with an agent that never judges. Explores ideas, challenges assumptions, and finds angles you haven't seen.
Example agentThe agent reads your entire library and responds with full understanding of your previously written text.
Library contextThe agent learns your language and voice. Suggestions and responses are tailored to how you specifically write.
Style analysisFreely choose which AI engine powers each agent. Switch per task fast for brainstorming, powerful for analysis.
GPT-4o mini · Haiku · FlashRunrista analyses your text in real time and finds what's easy to miss while writing: factual errors, contradictions, unclear references, and linguistic stumbling blocks.
Highlight a passage and have it checked against available knowledge. Uncertain claims are flagged with source references.
Finds and highlights places where you say different things about the same topic without noticing.
Identifies unclear pronouns and references that may confuse the reader.
Detects when the narrative perspective jumps unexpectedly in time.
Flags words and phrases that appear too densely.
Identifies words that add nothing and suggests cutting them for a sharper text.
Warns about sentences too complex for the reader to follow to the period.
Highlight a sentence. Get three alternative ways to say the same thing. Replace with a tap.
Full Markdown with live highlighting. Switch between edit and rendered mode with a tap.
All documents saved in iCloud Drive. Synced automatically between all your devices.
Hides everything but the text. Word count and goal progress in a subtle overlay.
Export to Markdown, plain text, HTML, or PDF. Print with a well-formatted layout.
Colour-coded labels and quick-start templates for meetings, journal, brainstorm, and more.
Words, reading time, and readability scores per document and project.
No sign-in. Your text lives in iCloud Drive. You choose which AI keys to connect.
Full keyboard support on iPad and Mac. All functions reachable with commands.
Write as you think. Let the AI help you see what you actually said.
Runrista, 2026
Runrista is available now for iPad, iPhone, and Mac with Apple Silicon. Download it on Apple App Store and start writing smarter today.
Mac native app coming soon
* AI features require your own API keys from the providers you choose to use.