Yes, you can make a one-time purchase instead of buying a subscription.
For this, you can buy Scanova's Ultra-Lite plan. It allows you purchase a single Dynamic QR Code, which will work for a lifetime. Some of the features of this plan are:
- Mobile landing pages
- QR Code designing capabilities
- Raster and vector export
- Basic analytics (number of scans by time period)
- No ads
For more details, refer to Scanova's pricing.