Simple Memo - Captio-style
Email Yourself Notes.
In 0.3 Seconds.
The best Captio alternative for quick capture.
One tap sends your thought straight to your inbox.
SimpleMemo is the fastest email-yourself app for iPhone. Send notes to your inbox in 0.3 seconds with one tap. Built as a Captio alternative after Captio shut down in 2025. Also works as a LINE Keep replacement for text memos. Features AES-GCM encryption, offline auto-resend via Outbox architecture, and zero server storage of your memo text. Cheaper than Drafts ($2.99/mo vs $4.99/mo) with faster launch speed.
Concept What is Email Memo?
Email Memo is a new way to take notes — jot down your thought and send it to your own inbox with one tap. Email is the one place everyone checks daily. That's why zero memos get missed. No folders, no tags, no organizing. Learn how Note-to-Email works and never lose a thought again.
App Preview Simple Means Fast
① Write & Send — 0.3s launch
📬 Inbox
Simple Memo
New feature idea to propose at tomorrow's...
Just now
Simple Memo
Milk, eggs, bread, butter
2 hours ago
Simple Memo
"Atomic Habits" Chapter 3 notes
Yesterday
② Check in email — zero memos missed
3 Steps How to Use
Features Key Features
One-Tap Send
Send instantly with a single tap the moment you have an idea.
0.3s launch, 150ms send. The fastest path from thought to inbox.
Offline Support
Works without internet.
Auto-resends when back online.
History & Status
Check send history in-app.
Easily track pending memos.
Privacy First
AES-GCM encryption.
Your memos never stored on server.
3-Minute Setup
Just set your destination email.
Ready to use in minutes.
Comparison SimpleMemo vs Drafts — Quick Capture Compared
Drafts
- $4.99/mo (Drafts Pro)
- Powerful automation & scripting
- Complex action system
- Multi-destination output
- Steeper learning curve
SimpleMemo
- $2.99/mo — 40% cheaper
- Pure speed: 0.3s launch
- One-tap email delivery
- AES-GCM encrypted
- Zero setup complexity
If you want scripting and automation, choose Drafts. If you want the fastest possible capture-to-email, choose SimpleMemo.
Our Story Why We Built This
We were long-time Captio users. The ability to send a thought to your inbox with one tap — that simple experience was unlike any other memo app. But in 2025, Captio shut down. We searched for an alternative with the same speed and simplicity, but nothing came close.
"If it doesn't exist, we'll build it ourselves." That decision launched this project. We achieved 0.3s launch and 150ms send speeds, built an Outbox architecture for reliable offline delivery, and designed a privacy-first system that never stores your memos on any server. Carrying forward Captio's spirit with modern technology, we created the best "note-to-email" experience possible.
User Stories How People Use It
"I can capture a sudden idea on the train in 3 seconds and send it to my inbox. When I get home, it's right there in my email. That peace of mind is priceless."
— Office worker, 30s
"Shopping lists, school reminders for the kids — anything I don't want to forget, I jot down and send. No folders to organize. Even as a busy parent, it's effortless to use."
— Parent, 40s
"I was lost when Captio shut down, then I found this app. Same feel, but with offline support and encryption added. I'm impressed."
— Freelance engineer, 20s
Plans Pricing Plans
7-day free trial: Unlimited sends
After trial: Free up to 3 sends/day / Premium (monthly & yearly) unlimited
Price may vary by region. See the App Store for the latest price.
*Cooldown limits and server-side rate limits may apply to protect system stability.
Support FAQ
What is Simple Memo?
Simple Memo is a memo app focused on one thing: launch, write, send. Your memo is sent as an email to a pre-configured address with a single tap. There are no folders, tags, sync settings, or complex features.
Can I send memos while offline?
Yes. When you send a memo offline, it's stored in the Outbox — encrypted with AES-GCM on your device. When connectivity is restored, all pending memos are sent automatically.
Can I use Simple Memo for free?
Yes. The first 7 days are a free trial with full access to all features and unlimited sending. After the trial, you can continue on the free plan (3 memos per day).