mail.tm vs TimeZones iCal Library
Same instrument, two spec sheets — measured, not claimed.
mail.tm vs TimeZones iCal Library: common questions
Which is more reliable, mail.tm or TimeZones iCal Library?
On our scheduled checks, TimeZones iCal Library leads on measured uptime — mail.tm at 84.3% versus TimeZones iCal Library 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, mail.tm or TimeZones iCal Library?
TimeZones iCal Library has the lower median latency in our checks — mail.tm responds in 709 ms versus TimeZones iCal Library at 337 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 mail.tm and TimeZones iCal Library need an API key?
Neither needs a paid key — mail.tm is callable with no signup, and TimeZones iCal Library is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call mail.tm and TimeZones iCal Library from the browser?
Only TimeZones iCal Library is browser-friendly — it returns CORS headers over HTTPS. mail.tm needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are mail.tm and TimeZones iCal Library free for commercial use?
mail.tm has unclear commercial terms, and TimeZones iCal Library 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.