What is Katsuo Cloud?

So, What Can You Actually Do? - katuocloud

What can you do?

So, What Can You Actually Do?

Katuo and Wan walk you through the service in plain conversation.

— We asked Katuo —

🐕

Wan

How is katuocloud different from Google Drive or Dropbox?

🐟

Katuo

Fundamentally different. Big-name services store your data on someone else's servers somewhere in the cloud. katuocloud runs on a dedicated physical server — enterprise-grade hardware.

🐕

Wan

A physical server? What difference does that make?

🐟

Katuo

Big cloud providers cram thousands of users onto shared servers and throttle everyone to keep things efficient. katuocloud is used by a limited number of people only, so everyone gets a fair share of the spare resources — no artificial limits.

🐕

Wan

Can you actually feel the speed difference?

🐟

Katuo

Absolutely. Big services impose transfer speed caps — katuocloud has none. You get the full performance of an enterprise server. Large files sync fast, no waiting around.

🐕

Wan

OK but what about security? Surely the big players are safer?

🐟

Katuo

That's actually the biggest difference. Big services rely on username and password. katuocloud requires a WireGuard VPN encrypted tunnel — there is literally no other way in. Think of it as a private, invisible road on the internet. Only devices holding the right key can enter.

🐕

Wan

Nice. But what if I lose my phone?

🐟

Katuo

That's where per-device management shines. Just revoke access for that one device — your PC and tablet keep working as normal. Setup is dead simple too: scan a QR code in the WireGuard app and you're done in 5 seconds.

🐕

Wan

Cool. And I bet signing up asks for a ton of personal info, right?

🐟

Katuo

No phone number. No email address. Just a username and passphrase you choose yourself. No more getting locked out because an SMS never arrived or a reset email ended up in spam.

🐕

Wan

Interesting... So is it just storage, or can I actually do things?

🐟

Katuo

Way more than storage. Nextcloud handles files, photos, videos, music, calendars, contacts, and notes — all in one place. And Collabora Online lets you edit Word, Excel, and PowerPoint-style documents right in the browser, with zero data leaving the server. Nothing gets cached on your device.

🐕

Wan

What about video calls?

🐟

Katuo

Covered. Nextcloud Talk gives you video calls, voice calls, and chat — all inside the encrypted tunnel, never routed through external servers. Unlike Zoom or LINE. The base plan includes 3 devices (phone, tablet, PC), and you can share across multiple people too.

🐕

Wan

Who is this actually for?

🐟

Katuo

It's a great fit if you:

Take privacy seriously
Are frustrated by big cloud storage limits and throttling
Don't want to hand personal data over to corporations
Want a safe way to share files with family or colleagues

"Built by an engineer with spare server capacity —
a fully private cloud with no personal info required and no artificial limits."

— Key Features —

🔐

WireGuard VPN

State-of-the-art encryption. Access is only possible through a dedicated encrypted tunnel — external intrusion is blocked at the root.

📂

Nextcloud Storage

Store photos, videos, music, and documents from 200 GB. Photos taken on your phone automatically sync to your PC.

📄

Collabora Online

Edit Word, Excel, and PowerPoint-style documents entirely in the browser. No data is left on your device after editing.

🎤

Video Calls & Chat

Nextcloud Talk provides unlimited video calls, voice calls, and chat — all within the encrypted private network.

📱

Device Management

Lost your phone? Instantly revoke access for that device only. All other devices continue working without interruption.

🚀

No Speed Limits

Full enterprise server performance unleashed. Sync large files fast, with no throttling ever applied.

Admin Panel

What You Can Do in the Admin Panel

Accessible from your primary (parent) device only

①

Display QR Code

Scan with the WireGuard app to register a device instantly.

②

Display Config Text

If scanning a QR code isn't possible, copy the text config and paste it directly into WireGuard.

③

Adjust Storage per Device

Allocate storage to each device within your total contracted capacity.

④

Add a New Device

The base plan includes 3 devices. Additional devices can be added for ¥500/month each.

⑤

Suspend a Device

Think you may have lost a device? Suspend it immediately. Access from that device is blocked right away.

⑥⑦

Re-register Primary / Remove Child Device

If your primary device is lost, contact support. Removing a child device frees up a slot for a new one.

Use Cases

How to Use Your 3 Device Slots

Use them all yourself, or share across multiple people

One person across 3 devices

📁

Shared Storage

All devices access the same data. Photos taken on your phone automatically appear on your PC.

🔄

Auto Sync

Access your files from any device, anytime. Phone on the go, PC at home — seamless.

💡

Expandable to a Group Later

If you invite others down the line, all 3 device slots become available for calls and notifications.

Three people, one device each

📁

Shared & Private Storage

Combine a shared folder for the whole group with personal private folders. Our support team handles the setup configuration.

🎤

Nextcloud Talk

All three can video call and chat together — no external servers involved, completely private.

🏢

Great for Teams & Families

Internal team meetings, family photo sharing, group chats — use it however fits your life.

For those who take their privacy seriously.

Get Started →

Opening Hours

All times are in Japan Standard Time (JST).