InkVellum

InkVellum is a handwriting notebook for people who study from paper-like pages: problem sets, lecture slides, and messy class notes that still need to stay searchable by how you filed them. Keep the prompt and the solution on separate layers. Hide a layer when you recite. Bring it back when you check. The page underneath does not get rewritten. Cover a line with washi tape and tap to peel it. Use it for vocabulary, formulas, or anything you want to test yourself on without making a second notebook. Record while you write. On playback, the strokes you made at that moment highlight in time with the audio, so a lecture recording points back to the ink, not a separate file. Import a PDF and mark the original page with fountain pen, ballpoint, and highlighter. Nested tags such as Math / Calculus / Mistakes sit in the sidebar instead of a single folder pile. Notebooks can sync over iCloud after they are encrypted on device. Apple Pencil is supported on iPad, including palm rejection when you turn on Apple Pencil Only in Settings. The same notebooks open on iPhone. InkVellum may show ads. Notes stay on your device and in your iCloud account; we do not sell your notebooks.