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rain
Product platform

Rain platform

Rain ecosystem

Study systems, not scattered tools.

StudyBuddy and StudyBuddy Notes work together across AI planning, visual tutoring, and handwriting-first note work.

See the productsPricingSign in
StudyBuddy+Planning, chat, visualization
StudyBuddy NotesPencil-first note workflow
Rain ReportsReport generation and citations

Products

One ecosystem for planning, notes, and polished academic output.

iPhone, iPad, Mac Catalyst

StudyBuddy

Planning, exercises, tutoring, calendar flows, and STEM workspace support in one app.

  • AI study plans and generated exercises
  • Visualization-aware tutoring
  • Chat, notebook, and timetable workflows
iPad companion

StudyBuddy Notes

A free endless canvas for Apple Pencil notes, PDFs, images, web embeds, and AI-ready exports.

  • Pencil-first endless canvas
  • Mixed media note layout
  • Direct handoff into StudyBuddy AI flows
iPhone, iPad, Web SaaS

Rain Reports

Turns rough study notes into polished LaTeX reports, formatted equations, citations, and diagrams. Included with every paid Rain plan.

  • Bullet notes to LaTeX report
  • Automatic diagrams and circuits
  • Citation and bibliography generation

Pricing

Plans that map cleanly to text, complex reasoning, and image workflows.

Free

EUR 0

Manual grade tracking and limited AI access

  • Basic plan generation
  • 3 text generations per day
  • No image generations

Core

EUR 4.99 / month

EUR 57.48 / year

  • 25 requests per day
  • GPT-4o nano tier
  • No image generations
  • Includes Rain Reports

Plus

EUR 12.99 / month

EUR 146.53 / year

  • 70 requests per day
  • 60 nano + 10 GPT-5.4 mini per day
  • 5 image generations per week
  • Includes Rain Reports

Pro

EUR 19.99 / month

EUR 220.69 / year

  • 120 requests per day
  • 95 nano + 25 GPT-5.4 mini per day
  • 20 image generations per week
  • Includes Rain Reports

Platform

rainworks.dev is the product backend now.

The apps call Rain first. We own AI routing, usage controls, notebook execution, synced notes, and future account entitlements in one backend surface.

One platform backend

Rainworks routes app traffic through one platform API instead of shipping OpenAI keys in the client.

Modern learning surfaces

The products combine planning, tutoring, notes, and visuals without making the experience feel busy.

Roadmap

01
Platform auth and subscription-backed user sessions
02
Deeper note import and notebook execution
03
Higher-fidelity visual rendering and richer AI orchestration

“It feels like a real product platform, not a collection of feature demos.”

Internal reviewer

“The note-taking side and the AI side finally feel connected.”