Step by Step Create Your First Capsule in MissCaps — 2026
TL;DR: MissCaps is a privacy-first app that stores encrypted messages, photos, and videos, then delivers them to the people you choose if you stop checking in. This guide walks you through creating your first capsule from scratch, starting with the free Experience Mode so you can test everything safely before committing real messages.
MissCaps lets you write messages and attach photos or videos, seal them in encrypted capsules, and have them delivered automatically to specific people if you go silent for a set number of days. For a quick overview of the three-step flow (Create, Stay Active, Auto-Delivered), see how MissCaps works on the homepage.
This walkthrough covers the full process of creating your first capsule, step by step, using the free Experience Mode. You won’t need a credit card, and you’ll send the test capsule to yourself so you can see exactly what recipients experience.
The whole process takes about 10 minutes.
Step 1: Download and Install MissCaps
MissCaps runs on iOS and Android and supports 10 languages, including English, Spanish, German, Japanese, Korean, French, Portuguese, Italian, and both Simplified and Traditional Chinese.
As of the current beta, app store listings are still pending. Android users can install MissCaps directly by downloading the APK file from the MissCaps download page and running it manually. The page includes instructions for this process. iOS users may need to wait for the App Store listing to go live.
Once installed, open the app and create your account with an email address.
Step 2: Choose Experience Mode (Free)
During setup, MissCaps will ask you to pick a plan. Choose Experience Mode, the free tier. It’s built specifically for first-time testing, and no credit card is required.
Here’s what you get with Experience Mode compared to paid plans:
| Feature | Experience Mode (Free) | Paid Plans |
|---|---|---|
| Active capsules | 1 | Up to 20 |
| Recipients per capsule | 1 (your own email) | Up to 10 (custom) |
| Content length | 2,000 characters | 2,000 characters |
| Media uploads | No | Yes (images + video) |
| Secondary Confirmer | No | Yes |
Experience Mode sends the capsule to your own email address, so you’ll play both roles: sender and recipient. This is the safest way to understand the full flow before creating capsules for other people.
For full plan details and pricing, paid options start at $3/month, with quarterly ($8), annual ($30), and lifetime ($129) tiers available.
Step 3: Set Your Privacy PIN and Save Your Recovery Codes
This is the most important step, so read it carefully.
MissCaps will ask you to create a 6-digit Privacy PIN. This PIN protects all your capsule content. Two things make it different from a typical app password:
- It never leaves your device. MissCaps servers never see it, store it, or transmit it. This is what makes MissCaps a “zero-knowledge” service: the company literally cannot read your content, even if someone demanded they hand it over.
- If you lose it, nobody can help you recover your data. Not MissCaps support, not anyone. This is a trade-off the app makes on purpose for stronger privacy.
Right after you set your PIN, the app generates 8 one-time recovery codes. These are your backup if you ever forget your PIN.
Write them down on paper and store them somewhere safe. Not in the app. Not in a screenshot on your phone. Somewhere physical and offline. Each code works once, so you get eight total chances across the lifetime of your account.
Behind the scenes, your PIN gets converted into an encryption key using a method called PBKDF2-SHA256, which essentially runs it through hundreds of thousands of rounds of processing to make it extremely hard for anyone to guess. You never interact with this directly. It just works when you enter your PIN.
Step 4: Create Your First Capsule
Now for the fun part. Tap the button to create a new capsule.
You’ll see a simple editor where you can:
- Write a message (up to 2,000 characters)
- Add photos and videos (paid plans only, so this will be grayed out in Experience Mode)
- Give your capsule a title
For your test capsule, write something short. A few sentences are fine. The goal here is to walk through the process, not compose your magnum opus.
What happens to your content when you save it: the app generates a random encryption key on your device, uses it to encrypt your message using AES-256-GCM (a widely trusted encryption standard), and uploads only the scrambled version to MissCaps servers. The server never sees your actual words. For the full technical breakdown, visit the MissCaps security features page.
Step 5: Set Up Your Recipient
In Experience Mode, the recipient is fixed to your own login email. You won’t be able to change this, which is the point: you’re testing the system on yourself.
On paid plans, you can add up to 10 recipients per capsule with their own email addresses.
For each recipient, MissCaps asks you to set a personal verification answer, something only that person would know. When the capsule eventually delivers, the recipient has to provide this answer before they can view the content. This answer actually generates the key that unlocks the capsule on their end, so even if someone intercepts the delivery email, they can’t open it without the right answer.
Practitioners on Reddit frequently flag a weakness in email-based dead man’s switch tools: recipients might assume the delivery email is spam and delete it. A Hacker News discussion on digital legacy tools raised the same concern. MissCaps addresses this with its per-recipient verification links and a clear claim process in the delivery email.
For your test, pick an answer you’ll remember. You’ll need to enter it when you receive the capsule yourself.
Step 6: Configure Your Miss Days
This is the core of how MissCaps works. Miss days is the number of days you can be inactive before your capsules deliver.
You pick the number during setup. Options start at a minimum of 3 days, with common presets of 7, 14, and 30 days.
Here’s how the timing works:
- You stop checking in (no app opens, no taps) for the number of days you set.
- 24 hours before the threshold, MissCaps sends you a warning email. This is your safety net for ordinary forgetfulness, like when you’ve been traveling or just busy.
- If you still don’t check in, delivery begins.
Pick a value that reflects your normal phone habits. If you sometimes go a week without opening certain apps, don’t set miss days to 7. Go with 14 or 30 to give yourself breathing room.
An analysis from AbsentKey warns that over months and years, check-in fatigue is real, and people stop responding to pings. MissCaps keeps check-ins lightweight (just open the app), but choosing generous miss days makes this less of a concern.
What counts as a check-in? Any of the following resets your clock:
- Opening the MissCaps app
- Reading content inside the app
- Tapping the activity button
Step 7: Add a Secondary Confirmer (Paid Plans Only)
If you’re on a paid plan, you can designate a Secondary Confirmer, a trusted person who reviews the situation before your capsules actually deliver.
Here’s the flow: after your miss days expire and you haven’t responded to the warning email, MissCaps contacts your Secondary Confirmer with a verification link. They get two options:
- “Confirm Missing” — they believe something has genuinely happened to you, and delivery proceeds.
- “All Is Fine” — they know you’re okay (maybe you’re hiking somewhere remote), and your activity clock resets.
You also set a confirmer wait window: 1, 3, or 7 days. If the confirmer doesn’t respond in that time, delivery proceeds automatically. This prevents a non-responsive confirmer from blocking delivery indefinitely.
The Secondary Confirmer is the strongest protection against accidental delivery (called a “false trigger”). This is the number one concern across dead man’s switch communities. The JustInCase guide describes advanced systems using escalation levels before triggering delivery. MissCaps takes a different approach: configurable miss days, a 24-hour warning email, and an optional human reviewer. Simpler, but with a human safety net.
In Experience Mode, this feature isn’t available, so skip this step for now. You can compare plan features to see which tiers include it.
Step 8: Activate Your Capsule
Once you’ve written your message, set your recipient, chosen your miss days, and (optionally) added a Secondary Confirmer, you’re ready to activate.
Tap activate, and your capsule moves from draft to active. An active capsule is live and armed for conditional delivery. It will be sent to your recipients if your miss-days threshold passes without a check-in.
At this point, MissCaps also records a blockchain proof of your capsule. A fingerprint (SHA-256 hash) of your capsule’s content is written to the Solana blockchain as a permanent, public record. This happens automatically. You don’t need a crypto wallet or any blockchain knowledge.
Why does this matter? When a recipient eventually views your capsule, the app recomputes the fingerprint and compares it to what’s on the blockchain. If anyone altered the content after creation, the fingerprints won’t match. Recipients can even verify this themselves using Solana Explorer, a public tool for looking up blockchain transactions.
For context, a Beebom walkthrough of deadmansswitch.net shows that basic dead man’s switch tools offer no encryption, no verification, and no tamper-evidence. The extra minute of setup in MissCaps buys you much stronger guarantees.
Step 9: Test the Full Delivery Flow
Here’s where Experience Mode really pays off. To see what your recipients will experience:
- Let your miss-days timer run out (or set it to the minimum of 3 days for a faster test).
- Ignore the warning email that arrives 24 hours before the threshold.
- Wait for delivery.
You’ll receive a delivery email with a unique 6-character link. Click it, and you’ll land on a delivery page, a browser-based page where you verify your identity by entering the answer you set in Step 5.
No app needed on the recipient’s side. The delivery page works in any browser and is available in all 10 supported languages, which matters for international families where members speak different languages.
After entering the correct answer, you’ll see your capsule content, along with a verification badge you can click to confirm the blockchain proof matches.
What to Do After Your Test
Three things:
- Confirm your recovery codes are stored safely. If you haven’t written them down and put them somewhere secure, do it now.
- Review what the delivery experience felt like. Was the email clear? Was the verification process intuitive? This is what your real recipients will see.
- Upgrade when you’re ready. Once you’re comfortable with the flow, upgrade to a paid plan to add real recipients, attach photos and videos, and enable a Secondary Confirmer.
Quick Reference: Key MissCaps Terms
You’ll encounter these terms as you use the app. Here’s a plain-language cheat sheet:
| Term | What It Means |
|---|---|
| Capsule | An encrypted container of text, images, and video addressed to specific recipients |
| Experience Mode | Free tier for testing: 1 capsule, 1 recipient (yourself), no media |
| Privacy PIN | 6-digit on-device code that protects all your encrypted content |
| Recovery Codes | 8 one-time backup codes for resetting your PIN without losing data |
| Miss Days | Number of inactive days before your capsules deliver (minimum 3) |
| Check-In / Activity | Any app action that resets your inactivity clock |
| Warning Email | Alert sent 24 hours before your miss-days threshold |
| Secondary Confirmer | Optional trusted person who reviews before delivery proceeds (paid plans) |
| Delivery Link | Unique link sent to each recipient via email (opens in any browser) |
| Delivery Page | Browser-based page where recipients verify identity and view content |
| Answer-Derived Key | Decryption key generated from a personal answer only the recipient knows |
| Blockchain Proof | SHA-256 fingerprint on Solana that proves content wasn’t tampered with |
| Zero-Knowledge Server | MissCaps servers store only encrypted data and cannot read your content |
| E2E Encryption | Content is encrypted on your device and decrypted only on the recipient’s device |
| APK Sideload | Installing the Android app directly from a downloaded file (while store listings are pending) |
FAQ
What is the first step to create a capsule in MissCaps?
Download the app from the MissCaps download page, create an account, and set your Privacy PIN. Make sure to save your 8 recovery codes somewhere safe before doing anything else. On Android, you can install via APK sideload while app store listings are pending.
Can I create my first capsule in MissCaps for free?
Yes. Experience Mode lets you create 1 capsule with 1 recipient (your own email), up to 2,000 characters, and no media uploads. No credit card required. It’s designed specifically for testing the full flow before committing real messages.
What happens if I lose my Privacy PIN?
Use one of your 8 recovery codes to reset it. The app will re-encrypt your data with the new PIN right on your device. If you lose both your PIN and all recovery codes, your encrypted content is gone permanently. MissCaps cannot help because they never had access to your decryption keys in the first place.
How do I prevent my capsules from delivering by accident?
Three layers protect against false triggers. First, set your miss days to a generous value (14 or 30 days gives plenty of buffer). Second, act on the warning email that arrives 24 hours before the threshold. Third, on paid plans, add a Secondary Confirmer who can select “All Is Fine” to reset the clock. The combination of all three makes accidental delivery very unlikely.
Do my recipients need to install the MissCaps app?
No. Recipients receive a unique delivery link that opens in any browser. They verify their identity and view the capsule content through a browser-based delivery page available in 10 languages.
What does the blockchain proof actually prove?
It proves your capsule content wasn’t modified after creation. A fingerprint of your capsule is recorded on the Solana blockchain. When a recipient views the capsule, the app recomputes the fingerprint and compares it to the on-chain record. If someone altered the content, the fingerprints won’t match. Recipients can verify this independently using Solana Explorer.
How is MissCaps different from a basic dead man’s switch?
Basic services like deadmansswitch.net store messages on their servers in readable form and send them via email when you stop checking in. MissCaps encrypts everything on your device before upload, stores only scrambled data on its servers, verifies each recipient independently, and records a blockchain-based tamper proof. The trade-off is a few extra minutes of setup in exchange for much stronger privacy and integrity guarantees.
What should I do right after creating my first capsule?
Store your recovery codes somewhere safe and offline (not in the app). Test the full delivery flow in Experience Mode by letting a capsule deliver to your own email so you see exactly what recipients will experience. Once you’re comfortable, upgrade to a paid plan to add real recipients, media, and a Secondary Confirmer.