ImgUpscaler
A cheap, no-install upscaler that is fine for web and social output and pointless for print or archival work. If you upscale regularly, Upscayl does the same job locally for free and Topaz does it far better for a one-off license fee.
Pros
- Commercial use is allowed even on free output, which many free upscalers forbid
- 24-hour deletion policy is stated explicitly rather than buried
- $19.90 unlimited tier is aggressive next to per-credit competitors
- Reimagine mode is a real creative-upscale option, not just a sharpening filter
Cons
- Capped at 4x, so no path to the 8x-16x some rivals offer
- Free tier is 50 credits and ad-supported
- No developer API and no desktop app included — the Upscal desktop product is licensed separately
- Ownership is not disclosed anywhere on the site; WHOIS is private