81 math topics with 3D figures, worked solutions and thousands of practice
questions — no ads, no account, no paywall. Physics and chemistry are being
built the same way.
Why I'm asking
DarkWiz Lab is built and paid for by one person. There's no company behind it
and no advertiser to please — which is exactly why it can stay this direct.
But it still costs time and money to keep going, and the next round of work is
the expensive part.
What your support goes to:
▸Physics and chemistry apps, built on the same engine▸Games mode — speed drills and puzzle challenges▸More worked examples and derivations on existing topics▸Keeping everything free, with no ads and no accounts, forever
Pick an amount
These are suggestions, not prices. Anything at all is genuinely useful, and
nothing here unlocks a feature — you already have all of them.
Tap one and the instructions below will name that amount. Or ignore them and send whatever you like.
From the Philippines
GCash · Maya · any bank app
Scan this with GCash, Maya or your banking app. It's a QR Ph code, so it works from all of them.
QR Ph · InstaPay
Account name · GE**R T.
Open GCash, Maya or your bank app and tap Scan QR.
Point it at the code. On a phone, screenshot it first and use Upload QR from your gallery.
Check the name shows as GE**R T. before you continue.
Enter any amount and confirm.
The code carries no fixed amount — you type whatever you want to give.
From anywhere else
Ko-fi · card or PayPal
Ko-fi takes cards and PayPal from most countries and passes on the full amount —
it doesn't take a cut of one-off donations.
Tap the button below to open Ko-fi in a new tab.
Choose card or PayPal — no Ko-fi account needed.
Send any amount. A message is welcome but optional.
✓Cards and PayPal, from most countries✓No Ko-fi account needed to send✓No cut taken from one-off donations
✓No ads. Not now, not after you donate, not ever.✓No account. Nothing to sign up for, nothing to log into.✓Nothing is locked. Donating doesn't unlock anything, because nothing is locked to begin with.✓Your work stays yours. Answers and progress are saved in your own browser and never sent anywhere.✓One file. Save the math app and it keeps working, even with no connection.
For transparency: this site counts anonymous page visits so I can tell what people
actually use. No cookies, no personal data, nothing tied to you.
Can't donate right now?
That's completely fine — it's why there's no paywall. Sending it to one classmate
who's struggling with math helps just as much.
