


No servers. No cloud. No backdoors.
True privacy begins offline
Meet. Exchange. Communicate with absolute secrecy.
PROCESS
How it works
Meet → Exchange → Communicate → Repeat.
MEET
EXCHANGE KEY
COMMUNICATE

FACE TO FACE. Not via server.
To begin, you and your contact meet once in person. This moment establishes trust — no network, no interception, just you two.
MEET
EXCHANGE KEY
COMMUNICATE

FACE TO FACE. Not via server.
To begin, you and your contact meet once in person. This moment establishes trust — no network, no interception, just you two.
MEET
EXCHANGE KEY
COMMUNICATE

MEET
To begin, you and your contact meet once in person. This moment establishes trust — no network, no interception, just you two.
"I believe in everybody's right to privacy.
With One-Time-Pad – the only proven encryption which is 100% secure – your communication stays private. Your thoughts belong only to you.”
"I believe in everybody's right to privacy.
With One-Time-Pad – the only proven encryption which is 100% secure – your communication stays private. Your thoughts belong only to you.”

C. Hell, Founder & Strategy Lead
BENEFITS
Why Using ONE?
Why Using ONE?
If you are concerned about your communication, use ONE
Beyond Military Grade Security
Built on the One-Time Pad – the only mathematically proven, unbreakable encryption. Your messages remain private. Forever.
Beyond Military Grade Security
Built on the One-Time Pad – the only mathematically proven, unbreakable encryption. Your messages remain private. Forever.
Beyond Military Grade Security
Built on the One-Time Pad – the only mathematically proven, unbreakable encryption. Your messages remain private. Forever.
Always Free
Core encryption is free for everyone, always. Expect more and more new upcoming features.
Always Free
Core encryption is free for everyone, always. Expect more and more new upcoming features.
Always Free
Core encryption is free for everyone, always. Expect more and more new upcoming features.
Group communication
Exchange keys for small groups and communicate securely. Every message stays completely offline.

Group communication
Exchange keys for small groups and communicate securely. Every message stays completely offline.

Group communication
Exchange keys for small groups and communicate securely. Every message stays completely offline.

FEATURES
All features in ONE place
Everything you need to establish a secured communication
Identity Exchange
Share your identity via QR or link. No servers or third-party systems involved.
Identity Exchange
Share your identity via QR or link. No servers or third-party systems involved.
Identity Exchange
Share your identity via QR or link. No servers or third-party systems involved.
Fast Key Generation
Create long, random keys in seconds. ONE uses every processor core for speed.
Fast Key Generation
Create long, random keys in seconds. ONE uses every processor core for speed.
Fast Key Generation
Create long, random keys in seconds. ONE uses every processor core for speed.
Zero Tracking
No tracking, no analytics, no telemetry. Your activity stays completely private.
Zero Tracking
No tracking, no analytics, no telemetry. Your activity stays completely private.
Zero Tracking
No tracking, no analytics, no telemetry. Your activity stays completely private.
Encrypt Any File Type
Encrypt photos, videos, PDFs, and archives. If your device can open it, ONE can protect it.
Encrypt Any File Type
Encrypt photos, videos, PDFs, and archives. If your device can open it, ONE can protect it.
Encrypt Any File Type
Encrypt photos, videos, PDFs, and archives. If your device can open it, ONE can protect it.
Self-Opening ONE Files
Encrypted files open directly in the app. No manual import or setup required.
Self-Opening ONE Files
Encrypted files open directly in the app. No manual import or setup required.
Self-Opening ONE Files
Encrypted files open directly in the app. No manual import or setup required.
Cross-Platform
iOS and iPadOS versions are ready today. Android support is coming soon.
Cross-Platform
iOS and iPadOS versions are ready today. Android support is coming soon.
Cross-Platform
iOS and iPadOS versions are ready today. Android support is coming soon.
FAQ'S
Frequently Asked Questions
Find quick answers to the most common support questions
Still Have Questions?
Still have questions? Feel free to get in touch with us today!
Do I need to recreate keys?
Yes. A key is a huge collection of bytes which get used up by every encryption. You encrypt 10kb, your key gets 10kb smaller. If the key doesn't have usable data left - you have to create a new key.
Do keys need to be exchanged in person?
YES. This is most important to guarantee the integrity. Only you and the receiver must have the key. Don't send it over a network/internet or any other chanel that could be intercepted.
Can I create a key for multiple members?
Yes! You can create as many keys for as many receivers as you want. As a premium feature we offter to create a single key for multiple recipient (group communication)
Are my data safe?
Yes. The key is only stored on senders and receivers device in their secured enclaves (keychain). Even if someone get's physical access to your phone, the key can't be extracted without your authorization.
Is ONE also available for Android?
An Android version is already in development. Follow our blog / social media to be informed when the app is available on the Play store
FAQ'S
Frequently Asked Questions
Find quick answers to the most common support questions
Still Have Questions?
Still have questions? Feel free to get in touch with us today!
Do I need to recreate keys?
Yes. A key is a huge collection of bytes which get used up by every encryption. You encrypt 10kb, your key gets 10kb smaller. If the key doesn't have usable data left - you have to create a new key.
Do keys need to be exchanged in person?
YES. This is most important to guarantee the integrity. Only you and the receiver must have the key. Don't send it over a network/internet or any other chanel that could be intercepted.
Can I create a key for multiple members?
Yes! You can create as many keys for as many receivers as you want. As a premium feature we offter to create a single key for multiple recipient (group communication)
Are my data safe?
Yes. The key is only stored on senders and receivers device in their secured enclaves (keychain). Even if someone get's physical access to your phone, the key can't be extracted without your authorization.
Is ONE also available for Android?
An Android version is already in development. Follow our blog / social media to be informed when the app is available on the Play store
FAQ'S
Frequently Asked Questions
Find quick answers to the most common support questions
Still Have Questions?
Still have questions? Feel free to get in touch with us today!
Do I need to recreate keys?
Do keys need to be exchanged in person?
Can I create a key for multiple members?
Are my data safe?
Is ONE also available for Android?
Let’s begin.
Ready for truly private communication?
Download and install ONE – it’s free forever.
info@neelixx.com
Let’s begin.
Ready for truly private communication?
Download and install ONE – it’s free forever.
info@neelixx.com
Let’s begin.
Ready for truly private communication?
Download and install ONE – it’s free forever.
info@neelixx.com