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LowLighter Invisible AI overlay for quick answers, meetings, and Agent help across your desktop. Productivity•Free / paid plans ▲0

LA LaTeX Autofill Type what you mean inside Obsidian math and get a full LaTeX template — English or Chinese, offline,… Productivity•Free ▲0

T TopCalcBox Free online calculators for finance, math, education, health, and everyday calculations. Utilities•Free ▲0

Atlas Workspace Visual AI research workspace for understanding papers and tracing answers to sources. Research & Education•Free / paid plans ▲0

C Calculover Free online calculators for finance, health, construction, math, science, and everyday tasks, with no signup. Utilities•Free ▲0

Q Quirkle A minimalist flashcard app for studying with spaced repetition, without the clutter. •Free starter access + paid upgrade ▲0

V VerbPal Learn verb conjugations in context with real sentences, spaced repetition, and short daily practice across 10 languages. Research & Education•Free / paid plans ▲0

S& Sub & Superscript Copy clean Unicode superscripts, subscripts, small text, and small caps without signing up. Utilities•Free ▲0

P PDFAnnotations Extract PDF highlights, comments, and notes locally, then export to Markdown, CSV, Notion, or Obsidian. Productivity•Free / paid plans ▲0

F Fluky Fluky – Free Spin Wheel & Randomizer Tools Productivity•Free ▲0

S SizeCompare Compare Sizes & Dimensions at True Scale Utilities•Free ▲0