Dear ThingSpeak, I would like to have more details about the free edition in terms of data retention. I already know how many data I can send on a yearly basis. But how long my data will remain in the platform ? Thanks. Data retention duration on ThingSpeak See the Licensing FAQ, item 24. Here is what is presently says: Free users are limited to 10 million messages (3+ years at minimum update interval) Paid users are limited to 100 million messages per unit (3+ years at minimum update interval) If storage is exceeded, your channels may no longer be able to receive data Long term archiving of data for paid customers is available. Email thingspeak-sales@mathworks.com for options. According the the current policy, free users can store up to 10 million messages before we will delete your data, assuming your account is active. You can also download your channel data at any time using the read data API, in MATLAB (ThingSpeakRead) or the web interface for channel data export. Thanks Christopher, this is all the info I needed ! licensing data retention