Cancel your Coinapp subscription by mail
Coinapp accepts written cancellation requests by post, which makes certified mail the strongest proof that you asked. Letters to Coinapp go to San Diego, United States.
Let Postbye cancel Coinapp for you
We write your letter, mail it by certified mail the next business day, and confirm when the cancellation went through. You keep the signed proof.
Money-back guarantee within 10 business days.
Postbye is not affiliated with Coinapp.
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- 3 Coinapp cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Coinapp by mail
Collect the details you need
Before writing, collect the name and email on the account and, if you have one, an account or customer number. Coinapp can only act on a request it can match to an account.
Set out the request
Postbye turns the request into a finished English letter headed “Subject: Subscription termination – Coinapp”: close the Coinapp account, stop every charge and reply in writing.
Mail it with tracking
Mail the letter by certified mail to the San Diego address in the next section, and keep the tracking number.
Keep the proof of delivery
Once the letter is delivered, the date on the receipt is the date Coinapp was told. Compare it with your statements over the next billing cycle.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Coinapp cancellation letter goes
Coinapp lists 1405 30th St, Suite A, San Diego, CA 92154 as its mailing address.
Put ZIP 92154 on the envelope: San Diego is in California, and a domestic certified letter is all it takes.
Your details go in a block headed by Name, Address and E-mail, and the opening line is “To Whom It May Concern,”.
Prefer to write it yourself? Use our letter template
Every address we hold for Coinapp, with the envelope wording
Before you cancel Coinapp, check these
- Cancelling usually ends access at the end of the period you paid for, so you keep what you paid for until then.
- Use the same name and email as on the account. A mismatch can delay the request.
- Check your next statement: no charge should appear after the cancellation date.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Coinapp for you
We write your letter, mail it by certified mail the next business day, and confirm when the cancellation went through. You keep the signed proof.
How cancelling by mail works
A subscription ends when the company records your request, not when you stop using it, and a letter is the record you can show later.
Putting the request in writing means there is a date on file for when you asked, which matters if a charge appears afterwards.
Coinapp cancellation at a glance
- How Coinapp accepts cancellations
- By mailed letter
- Mailing address on file
- Coinapp 1405 30th St, Suite A San Diego, CA 92154
- Country
- United States
- Letter language
- English (template en)
- Added to the database
- April 30, 2026
- Data last checked
