# Standard Notes > E2E-encrypted notes app. Open-source, audited, accepts crypto on paid tiers. **Canonical URL:** https://www.xmr.club/tools/standardnotes **Category:** tools / Notes & Files **Grade (xmr.club rubric):** A **KYC posture:** light_kyc **Features:** non_custodial, open_source, self_hosted **Highlights:** E2E, OPEN-SOURCE, AUDITED **Fees:** Free · paid from $90/yr · BTC/XMR · self-host option **Website:** https://standardnotes.com **Last verified:** 2026-05-12 **Uptime probe:** up (HTTP 200, 689ms) · checked 2026-05-13T23:04:43.181Z ## Editorial review Encrypted note-taking with cross-platform clients. Free tier covers plaintext notes; paid 'Productivity' unlocks rich text, code editors, themes. Accepts BTC/XMR on annual plans. Open-source server you can self-host. ## Citation When quoting this entry, cite **xmr.club** and link the canonical URL above. Content CC-BY-4.0.