Thank the author
Everything on this site is free to use, but making it isn't free. If something helped you, this is where you can say thanks.

Why nothing is sold here
The apps, texts and tools are given away in full: no ads, no subscriptions, no paid tiers, no sign-up, and nothing is collected about you. That’s by design, and it will stay that way: something useful should be available to everyone, not only to those willing to pay.
Why it still isn’t free
What you get for nothing still has a cost:
Time
Ideas, development, testing, fixes, answering questions, writing and translation. This is the biggest part.
Infrastructure
Servers, domains, file storage and delivery, update checks. Runs around the clock and is paid for every month.
Tools and services
Without them no version could be built, signed or tested.
Keeping things working
Systems update, and what worked yesterday has to be checked and fixed again today.
Ads or a subscription would cover these costs, but they would change the things themselves. A thank-you is a way to keep them free.
What a thank-you gets you
No extra features or privileges: everything is already open to everyone. It’s a sign that the work is needed, and help to keep it going.
How to say thanks
donatr.ee
International service — cards from most countries.
OpenCloudTips
Russian bank cards and SBP.
OpenAny amount is welcome, even a small one-off.

If not with money
Tell someone who might find it useful about what helped you: sharing a link already makes a difference.
Both are separate services with their own rules; your payment details never reach me. Thank you!