How sync works across web, iOS, and Android
One account, every device. Here's how your designs move between the web app and the mobile apps.
RoomSketch3D keeps one copy of every design on your account, not on the device. Change something on the web and it's on your phone a second or two later; sketch on the tablet and it's waiting on the laptop. There's nothing to sync by hand and no Save button — the cloud icon in the editor tells you it's done.
On a computer, the editor is at app.roomsketch3d.com in any modern browser. There's nothing to install. Sign in there with the same account you use on your phone and every design is waiting.
This page shows what that looks like, the one rule that makes it work (sign in to the same account everywhere), and what happens to edits you make offline.
Step by step
- 1
Every change goes to your account
Add or move a piece. The cloud icon at the top right shows a spinner, then turns green — Saved to cloud. From that moment the design is on your account, not just this device. See Did my design save? for every state of that icon.
- 2
The same designs list on every device
Open Home (the house button at the top left of the editor). Your Designs lists every design with when it was last updated. Sign in on another device with the same account and this list is identical — including the design you just changed, at the top with today's date (Updated and the date).
- 3
Open it anywhere
Open the design on the other device and it's exactly as you left it — walls, furniture, materials, floors. Keep editing; the changes flow back the same way.
- 4
On the phone
The iPhone, iPad and Android apps show the same account and the same list. The editor adapts to the screen — the catalog and build tools open as bottom sheets — but it's the same design and the same features.
- 5
The one rule: the same account everywhere
Your account is tied to one email address. Google, Apple and the email code all reach the same account when the email behind them is the same. If a device shows an empty list or asks you to buy again, you're in a different account. Open Settings (the avatar, top right → Settings) on both devices and compare the email under your name. See Designs missing after signing in.
- 6
Signed up on iPhone with Hide My Email? Use Continue with Apple on the web
If you chose Apple's Hide My Email when you signed up on iPhone, your account's email is a relay address like abc123@privaterelay.appleid.com, not your real one. On the web, click Continue with Apple and sign in with the same Apple ID. Don't type your real email into the email-code box, because that creates a second, empty account. The Android app has no Apple sign-in, so a Hide My Email account can't be opened there. Email support to move it to your Google account (see Sign in or create your account).
- 7
Offline edits
Lose the connection and keep working: the cloud turns amber, edits are queued on the device in order, and they're sent the moment you're back online. Don't sign out or clear the app's data while it's amber.
Tips
One device at a time
Both devices sync, but the last write wins. Finish on one before picking up on the other — the change is there within seconds.
A copy that doesn't sync
Want a frozen version? Export the design as JSON. Files don't sync; they're a snapshot you keep.
Common mistakes
Expecting a Save or Sync button
There isn't one. The cloud icon is the whole story: green means it's on your account.
A different email on each device
The most common reason designs seem to be missing. It usually happens after signing up on iPhone with Apple's Hide My Email and then using a real address on the web. Compare the email at the top of Settings on both devices, then sign out and sign in the way you did on the first device.
Frequently asked questions
Do I have to sync manually?
No. Every change is saved to your account as you make it and appears on your other devices within seconds.
Why don't my designs show on my phone or computer?
You're almost certainly in a different account, meaning a different email address. Open Settings on each device and compare the email at the top. If one shows a privaterelay.appleid.com address, sign in on the other device with Continue with Apple.
Do I have to buy again on each device?
No. The one-time purchase belongs to your account, not the device or the store you bought it in. Sign in to the same account on the web, iPhone, iPad or Android and it's unlocked. If a device asks you to buy, it's signed in to a different account. Check the email at the top of Settings before paying again.
Where do I edit on my PC or Mac?
At app.roomsketch3d.com in your browser. Sign in with the same account as on your phone.
Can I edit on two devices at the same time?
You can, but the last write wins. Work on one device at a time.
What happens if I edit offline?
Edits are kept on the device (amber cloud) and sent when you're back online, in order.
Is there a limit on designs or devices?
No. Unlimited designs, and your account works on as many devices as you sign in on.
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