A custom QR code can use a different color, frame or logo treatment, but style does not guarantee that a code will scan. The safest approach is to make modest changes, preserve clear contrast and test the final exported image on real devices before printing or publishing it.
Choose the destination first
Decide what the code should open or contain, then encode that content. QR Pulse’s Google Play listing describes code types and visual options such as colors, patterns, frames and logos. These are publisher descriptions; the exact interface and availability can vary by platform or app version.
Keep the code easy to read
Use clear foreground/background contrast and leave the required quiet area around the code. Avoid stretching, cropping or covering the patterned area. DENSO WAVE describes multiple error-correction levels and explains that the appropriate choice depends on factors such as code size and operating environment. Error correction is not a guarantee that a logo or decoration will be tolerated.
Test the final asset, not just the preview
Export the finished code and scan it from the actual screen or a printed sample. Try more than one phone or scanner, at the expected distance and lighting. Confirm that the decoded destination is correct. If a scan is slow or unreliable, remove decoration, increase contrast or size, or use a simpler code.
Use destination analytics carefully
If the code links to a website you control, campaign parameters can distinguish recorded visits from different placements in compatible analytics setups. They do not measure every scan and should not be presented as proof of sales or guaranteed conversion. A static code does not automatically become editable or trackable after printing.
Check plan availability before promising a feature
The Google Play listing describes QR Pulse as free to download with optional Pro, and lists some Pro benefits, including ad-free use, unlimited QR generation and CSV history export. Store descriptions do not verify every current limit or feature parity. Check the current app and platform-specific offer before publishing pricing or plan claims.
Frequently asked questions
Is there a safe fixed logo size, such as 30%?
No universal logo-size rule is established by the sources reviewed. The effect depends on the code, content, error-correction choice, print quality and scanner. Test the exact final asset.
Does higher error correction guarantee better scanning?
No. DENSO WAVE explains that levels involve trade-offs, including the amount of data. Choose for the use conditions and test the result.
Can I guarantee that a custom code will scan?
No. Test the final code on the devices, sizes and conditions that matter to your audience.
Sources
- DENSO WAVE: QR Code error correction
- DENSO WAVE: QR Code FAQ
- QR Pulse on Google Play (publisher-supplied feature and plan description)
- QR Pulse on the App Store (publisher-supplied feature and plan description)