Tulbrain support
Last updated: August 26, 2026
This page is for anyone using the Tulbrain app (package com.netmindcloud.tulbrain),
published by NETMIND CLOUD LLC, 1621 Central Ave, Cheyenne, Wyoming 82001, USA. You do not
need an account to write to us.
Get in touch
Write to hello@netmindcloud.com. Tell us which device you are using and what you were doing when the problem appeared: a screenshot helps more than anything else. We read every message and we answer in writing.
Emails from us
We only ever write to you from hello@tulbrain.com or hello@netmindcloud.com. Check the address itself, not the sender name: anyone can put “Tulbrain” on an email sent from any account.
We will never ask you to reply to an email with a password or a verification code. And we will never ask you for card or payment details at all: if you subscribe, you pay in the App Store or on Google Play, never through us.
Every link we send goes to tulbrain.com, tulbrain.us or netmindcloud.com. If a message takes you somewhere else, it is not from us, however much it looks like us.
If you are not sure about a message, do not reply to it and do not open its links. Forward it to hello@netmindcloud.com and we will tell you whether it was ours.
Delete your account
You can ask us to delete your account at any time, and you do not need the app installed to do it. The full procedure, what is deleted and how long it takes are on our account deletion page.
Your subscription
You can cancel a subscription at any time, in the store where you bought it:
- Google Play: see Google Play Help. In the app, Settings → My subscription → Manage subscription takes you there.
- App Store: see Apple Support.
Cancelling stops the next renewal, and you keep access until the end of the period you have already paid for. Uninstalling the app does not cancel your subscription.
If you delete your Tulbrain account: a Google Play subscription is cancelled along with it. Deleting your account ends your access straight away, and it does not by itself refund the time left in the period you paid for. An Apple subscription is not cancelled when you delete your account — Apple does not let us cancel it for you — so cancel it first in your Apple Account settings, under Subscriptions. If you don’t, it keeps renewing and charging you even after your account is gone.
Your data and your privacy
What we collect and why is in our Privacy Policy. If you want a copy of your data, a correction, or its deletion, write to the address above: we act without undue delay and in any event within one month.
Which language to write in
Write to us in English or Spanish. If you write in another language we will still answer; it may take us a little longer.