Is Blindtrainer free and how can I support it?

Yes. Blindtrainer is described on its own site as staying 100% free, and the page states that donations are what keep it that way. Donations are presented as covering maintenance costs, keeping the site free, and making regular updates possible. There is no pricing page, subscription link, or payment platform listed on the site — support is handled through voluntary donations, not paid tiers.

What the site says about being free

The donation section on Blindtrainer states directly that your support:

• helps cover maintenance costs
• ensures the website stays 100% free
• makes regular updates possible

That is the whole of the stated funding model. Nothing on the page suggests a paid plan, a trial limit, or a locked feature set. The training categories — corners, edges, wings, centers, parity, twists, flips and the rest — are listed as part of the same free tool.

How to donate

The page gives two routes, both listed under "Donate":

Note the wording: the PayPal address is explicitly labeled as belonging to the author's father, not to the site itself. If you want your donation to be traceable or to receive any acknowledgement, that detail matters — you are sending money to a personal account, not to a registered organization.

What your donation does not buy

Nothing on the page ties a donation to extra features, ad removal, priority support, or account perks. Donating is framed purely as support for upkeep and continued development. So if you are deciding whether to give:

• Give if you use the trainer regularly and want it to keep running and updating.
• Skip it if you were expecting a paid tier with additional functionality — there isn't one described here.

Practical notes before you send money

• Currency and fees: the bank account uses an IBAN (AT…), so it is an Austrian account. International transfers may carry fees depending on your bank; the site does not mention who absorbs them.
• Recipient name: the page does not state a full legal name for the bank transfer, only the IBAN. Confirm the account holder with your bank if that matters to you.
• No receipt mentioned: there is no statement about tax receipts or donation confirmations.

The short version

Blindtrainer is free to use, and the site says donations are what keep it free and maintained. You can contribute via PayPal to [email protected] or by bank transfer to AT16 3306 5000 0197 2785. Donations are voluntary and, based on the page, do not unlock anything — they simply support the site's upkeep and updates.