Image-Charts vs ItsThisForThat
Same instrument, two spec sheets — measured, not claimed.
Image-Charts vs ItsThisForThat: common questions
Which is more reliable, Image-Charts or ItsThisForThat?
On our scheduled checks, ItsThisForThat leads on measured uptime — Image-Charts at 99.02% versus ItsThisForThat at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Which is faster, Image-Charts or ItsThisForThat?
Image-Charts has the lower median latency in our checks — Image-Charts responds in 80 ms versus ItsThisForThat at 242 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do Image-Charts and ItsThisForThat need an API key?
Neither needs a paid key — Image-Charts is callable with no signup, and ItsThisForThat is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Image-Charts and ItsThisForThat from the browser?
Neither sends browser-friendly CORS headers reliably, so call Image-Charts and ItsThisForThat from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are Image-Charts and ItsThisForThat free for commercial use?
Image-Charts has unclear commercial terms, and ItsThisForThat has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.