The qrody generator has a "Pro options" section with four knobs that change the default design. Anonymously you can stack up to three of them at once; the Pro plan removes the cap.
What counts as a pro option?
| Knob | What it does | When it's a pro slot |
|---|---|---|
| Frame | A frame around the code (NONE / SIMPLE / ROUNDED / SHIELD / CALL_TO_ACTION) | as soon as you pick anything other than NONE or SIMPLE |
| Logo | An image overlay in the centre of the code | as soon as any image is set |
| Colors | Foreground and background color | as soon as you deviate from black/white (foreground + background are bundled as one slot) |
| Error correction (ECC) | How much damage the code tolerates — LOW / MEDIUM / QUARTILE / HIGH | as soon as you pick anything other than MEDIUM |
Examples:
- 0 slots: Black/white, no frame, no logo, ECC = MEDIUM. The classic QR.
- 1 slot: Logo in the centre, defaults otherwise. Branded without bells.
- 3 slots: ROUNDED frame + logo + brand color. The maximum free-tier mix.
- 4 slots: Frame + logo + color + HIGH ECC. qrody asks you to upgrade here.
Why this cap?
We believe reach (free, anonymous creation) matters more than a fast monetisation push. The 3-stack cap costs you nothing in practice — most real codes use 0–2 pro options. The fourth and beyond are detail-tuning for brands that can also afford the Pro plan.
I thought I picked three and qrody says four?
Watch the counter in the Pro-options block: "X/3 pro options active". At 3/3 it turns orange. Trying the fourth knob opens the upgrade dialog instead of applying the choice.
A common gotcha: foreground and background combined are one slot, not two. Removing the logo frees its slot back up.
When should I upgrade to Pro?
- You need all four knobs at once. Common with a unified brand identity (frame + color + logo + HIGH-ECC for robust outdoor print).
- You need business features: password protection, expiry, geo analytics, multi-seat. Those are independent of the vanity cap but Pro-only.
More on plans: Change plan.
Error correction — a quick primer
ECC (Error Correction Capability) is how much of the code can be obscured without breaking readability:
- LOW (~7 %): smallest code, fragile
- MEDIUM (~15 %): qrody's default
- QUARTILE (~25 %): denser, more robust
- HIGH (~30 %): densest, perfect when a big logo overlaps the code
Higher ECC means more modules per symbol means a denser image. Print smaller than 2×2 cm? Pick MEDIUM or LOW. Big outdoor material with a logo? HIGH.