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iTunes Search vs Simkl

Same instrument, two spec sheets — measured, not claimed.

APIiTunes SearchNEW—SimklNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedSimkl terms — user-contributed data
Free tierFree — limits not publishedFree read routes; client_id for search
Rate limitUnpublished1 req/s documented
In directory since2026-07-052026-07-05
operationalpartialdownno data

iTunes Search vs Simkl: common questions

Which is more reliable, iTunes Search or Simkl?

On our scheduled checks, Simkl leads on measured uptime — iTunes Search at —% versus Simkl at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do iTunes Search and Simkl need an API key?

Neither needs a paid key — iTunes Search is callable with no signup, and Simkl is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call iTunes Search and Simkl from the browser?

Yes — both iTunes Search and Simkl send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are iTunes Search and Simkl free for commercial use?

iTunes Search has unclear commercial terms, and Simkl 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.