Letterly Alternative: Audio Notes vs Letterly (2026)

Letterly is a strong voice-to-text writing app: speak, and it rewrites your words into polished notes, messages or posts. If you mostly record conversations (meetings, lectures, interviews) or receive voice messages, and you want the full transcript with a summary and action items, Audio Notes AI is built for that.

What Letterly does well

From its App Store listing (October 2026): 25+ premade rewrite styles plus your own, 90+ languages with automatic detection, recordings up to 90 minutes per note, offline capture, audio upload, translation, tags, a home-screen widget, Zapier integration, and sync across iPhone, iPad, Mac and the web.

Where Audio Notes AI is different

• Transcript first: the full, word-for-word record of a conversation, with a summary and action items alongside.
• Chat with the recording to find decisions and details.
• Voice messages: share WhatsApp and LINE voice notes straight from the share sheet.
• Video import: mp4 and mov recordings of calls and lectures.
• Encrypted sharing: AES-256 on your iPhone, link expires after 24 hours.

Honest limits: transcription runs on a server (internet needed), there are no speaker labels yet, recordings can be up to 90 minutes each, and it is iPhone only.

Side by side

Verdict

• Pick Letterly if you write by voice across devices and want many rewrite styles.
• Pick Audio Notes AI if your audio is meetings, lectures, interviews or voice messages and you want the full record plus notes.

See also: AudioPen alternative, Voicenotes alternative, AI note takers for iPhone. Try Audio Notes AI free on the App Store: your first 3 notes or 60 minutes of transcription are included.