Letterly vs Memoth

Letterly turns speech into text for messages, emails, notes, meeting summaries, journal entries, social posts, and other writing. Users can dictate inside apps such as Gmail, Slack, and Notion, or upload audio and video for transcription. Recordings can run up to 90 minutes, and speech is automatically detected across more than 90 languages, including when languages change mid-sentence. Users can select ready-made rewrite styles or create their own. Letterly can record offline, and Zapier and webhooks can send notes to other apps. Its MCP connects notes with Claude, ChatGPT, Cursor, Perplexity, Gemini CLI, Codex, VS Code, Windsurf, and Claude Code. Letterly says user words are not used to train AI; its DPA specifies encryption in transit and at rest, access controls, and regular security testing. Users can delete recordings and transcriptions through the app. It is available on Android, iOS, macOS, web, and Windows. In-app PRO prices include $19.99 a month, $89.99 a year, and $249.99, paid once.

Memoth is a personal voice-notes app that turns recorded or imported conversations into transcripts, summaries, speaker labels, highlights, translations, and action items. It can record on iPhone, iPad, Mac, and Apple Watch, import audio, and process WhatsApp voice messages. On Mac, it detects meetings and records audio locally without a bot, calendar access, or invitation; listed sources include Zoom, Teams, Meet, Webex, FaceTime, and Slack huddles. Users can ask questions with a meeting’s transcript, summary, speakers, and action items as context. Recordings, notes, and transcripts stay in the device library and sync through the user’s iCloud. Uploaded audio is kept as an AES-256 encrypted backup for 30 days before deletion. Memoth says recordings are not sold or used to train AI models, and its AI providers are contractually barred from training on them. The Free plan allows 10 minutes per month; Pro is $9.99 a month for 15 hours, and Pro Plus is $24.99 a month for 40 hours. Imports and WhatsApp messages count against the same monthly allowance as app recordings.