Head-to-head: two email-yourself memo apps

Simple Memo vs Note To Self Mail
Full Comparison

Both apps do the same thing: email your notes to yourself. That's why the details matter. Compare launch speed, offline Outbox support, AES-GCM encryption, Cloudflare Workers infrastructure, and free tier pricing.

What Is the "Email Yourself" Note App Category

The "email yourself" note app category lets you write a memo on your phone and instantly send it to a specified email address. Both Note To Self Mail and Simple Memo belong to this category, leveraging email's permanence, searchability, and cross-device access. The core concept is shared. The known differences are how mail is sent (Note To Self Mail can also send from your own email account), the number of addresses, and how sent notes are kept. Note To Self Mail's launch speed, offline handling and on-device encryption are not confirmed in public information. Simple Memo's features are: ready to type 0.4s after the tap (developer-measured, warm launch), Outbox offline support, AES-GCM on-device encryption, and sending through Cloudflare Workers + Resend API.

Note To Self Mail vs Simple Memo — Comparison Table

FeatureNote To Self MailSimple Memo
Launch SpeedNot measured0.4 seconds (warm launch)
Offline SupportUnknownOutbox auto-resend
On-Device EncryptionUnknownAES-GCM
Send InfrastructureCan send from your own email account (per the developer)Cloudflare Workers + Resend
SendingNot stated publiclyOne tap
Free TierCheck App Store3 sends/day
Send HistoryYes (archive, per the developer)In-app tracking
Supported OSiOSiOS 16+
Japanese LocalizationNo (Japanese is not listed on the App Store)Yes

3 Differences in Self-Email Methods

DIFFERENCE 01
Setting the Recipient
Both apps let you preset the recipient. Note To Self Mail lets you register several addresses for different inboxes (per the developer). Simple Memo asks you to set and confirm your address once; after that, each send is a single tap.
DIFFERENCE 02
Automatic Subject and Body Handling
Simple Memo automatically uses the first line of your memo as the email subject — no separate subject entry needed. Note To Self Mail can also use the first line of the note (or other dynamic content) as the subject (per the developer).
DIFFERENCE 03
Send History Management
Simple Memo lets you review sent memo history within the app and manage unsent Outbox memos in a list view. Note To Self Mail also keeps a notes history in its archive (per the developer). Being able to look back at past memos within the app increases the utility of your note-taking habit.

Who Should Choose Which

Consider Note To Self Mail If...
  • You're satisfied with the current interface
  • You want to switch between several addresses
  • You're used to it and don't want to change your setup
Choose Simple Memo If...
  • You want quick capture (0.4s warm launch)
  • You want notes written offline to send once you're back online
  • You want on-device encryption (AES-GCM)
  • You want memos appended to your Obsidian vault too
  • You want to start on a free plan (3 sends a day)

Tips for Maintaining a Self-Email Habit

Building a lasting self-email memo habit requires a few practical tips. First, place Simple Memo - for Obsidian in your home screen dock (the fixed area at the bottom). Having the app one tap away the moment you want to capture a thought is critical. Second, consciously use Simple Memo - for Obsidian instead of opening a notes app. In the author's view, "send it now via email" leaves fewer memos behind than "I'll organize it later in a notes app." Third, build a daily habit of processing your email inbox — reviewing and acting on the memos you've sent yourself. The key insight: the habit sticks when capture takes only a moment. Simple Memo - for Obsidian's 0.4s launch (warm) → type → one-tap send is designed to keep capture that short.

FAQ

Which app has fewer steps to send — Note To Self Mail or Simple Memo?

Both let you preset the recipient, and both follow the same open, type, send flow (we have not timed Note To Self Mail). Simple Memo uses the first line of your memo as the subject, so there is no subject to type.

Does Simple Memo auto-generate email subjects?

Yes. Simple Memo automatically uses the first line of your memo as the email subject. No separate subject field to fill in, which further reduces the steps between thought and send.

Can I view my sent memo history within the app?

Yes. Simple Memo provides an in-app view of sent memos and lets you manage unsent Outbox memos. You can review past memos from within the app as well as your email inbox.

What happens to my old memos if I switch from Note To Self Mail?

All memos previously sent via Note To Self Mail remain in your email inbox. Simple Memo can use the same email address, so your old and new memos are unified in one inbox.

Make Self-Notes Even Simpler
A quick way to memo yourself. Free to download.
Download on the App Store

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