MathNotes vs PubMinder

Transform the way you study and visualize mathematics with MathNotes, the ultimate infinite canvas built for students, professionals, and math enthusiasts! Whether you're plotting a simple 2D graph, exploring complex 3D surfaces, or simply taking digital notes with perfect LaTeX formatting, MathNotes gives you full freedom in a single, boundless workspace. FEATURES • Infinite Canvas: Pan, zoom, and organize your math notes unhindered! Add text, images, videos, and web links instantly. • Advanced Plotting Engine: Easily plot standard 2D functions, polar coordinates, and parametric curves. • Interactive 3D Surfaces: Visualize multi-variable formulas (`z = f(x,y)`) in full 3D space with an orbit camera. • Formula OCR Engine: Found a complicated equation? Simply snap a photo or scan it using our built-in ONNX-powered OCR to perfectly convert it into editable LaTeX. • Beautiful LaTeX Rendering: Write and render complicated mathematical formulas with gorgeous typography. • Scrubbable Constants: Use animated sliders to watch your 2D and 3D graphs react in real-time. • Custom Organization: Pin definitions, build concepts visually, and maintain your custom study notes. Designed for fluid interaction, MathNotes handles your deepest mathematical explorations with a clean, dynamic, and focused interface. Ready to master calculus, linear algebra, and trigonometry? Download MathNotes today and unlock the perfect math study canvas!

PubMinder is an AI-powered research feed for scientists, students, and curious minds. It aggregates the latest preprints and journal articles from bioRxiv, medRxiv, arXiv, and PubMed — then summarizes each one in 2–3 plain-English sentences using Apple Intelligence (on-device) or Groq's free AI. WHAT IT DOES Fetches the newest papers from the subjects you care about Summarizes every abstract automatically — no reading walls of text Opens papers in a built-in reader, so you never lose your place Lets you save and share papers with one tap Search your saved papers and sort by date, title, or source Supports keyword filtering so only relevant papers reach your feed ORGANIZE YOUR LIBRARY (PRO) Add tags and notes to any saved paper Group papers into collections and browse by project Export your library to BibTeX, RIS, or CSV — import straight into Zotero, EndNote, or Mendeley, with authors, year, and journal included SOURCES INCLUDED bioRxiv — biology and life sciences preprints medRxiv — medical and clinical preprints arXiv — physics, mathematics, and computer science preprints PubMed — peer-reviewed journal articles via NCBI E-utilities AI SUMMARIZATION On Apple Intelligence-capable devices (A17 Pro, A18, or M-series chips, iOS 26+), summaries run entirely on-device — no internet, no API key needed. On other devices, PubMinder uses Groq's free cloud AI. A free Groq API key takes about 2 minutes to set up at console.groq.com. PRO AI summaries and your saved library are free. A single one-time purchase (no subscription) unlocks tags, notes, collections, unlimited subjects, and library export. PRIVACY PubMinder does not collect personal data, require an account, or track you. API keys are stored in the iOS Keychain, not in plain text.