Simple Memo vs timeletter

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Simple Memo compared with timeletter
Detail	Simple Memo	timeletter
What it does	AI auto-tagging voice notes to email and Obsidian	Write letters to your future self to be delivered on a date you choose
Stage	Startup	Not given
Founded	2026	Not given
Based in	JP	AT
Pricing model	Not given	Free
Pricing	Free: up to 3 sends per day, no time limit. Premium Monthly: $2.99/month for unlimited sends. Premium Yearly: $29.99/year for unlimited sends.	Not given
Key features	0.4-second launch time (warm start on iPhone 16e) One-tap send to email On-device voice input (iOS 16+) AI auto-tagging with title, tags, and type Offline Outbox with auto-resend AES-GCM-256 encryption for stored data Obsidian integration without plugin Apple Watch support Send history and resend capability No account required	Write letters with thoughts, goals, or memories Choose delivery date in weeks or years Encrypted and secure storage Email delivery at scheduled time
What makes it different	On-device AI tagging that never leaves your iPhone Memobodies not persistently stored on servers Built as a direct Captio replacement with modern technology Works offline with automatic retry when reconnected	Helps you connect with your future self through digital correspondence Focuses on self-reflection and mental well-being
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	14 −1 (down) since last check	2 no change since last check
Trust Flow (Majestic)	19	9
Citation Flow (Majestic)	30	6
Referring domains (Majestic)	156	46

4 details filled in for both companies.

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