Is all previous history available when upgrading to TezLab Pro?

When upgrading to TezLab Pro, data for up to 30 days before your subscription date will be available.

For example, if you start using TezLab on January 1, and subscribe to Pro on January 30, your information back to January 1 onward will be available. If you start using TezLab on January 1, and subscribe to Pro on February 15, information from January 16 onward will be available.

For free accounts, data is purged on a rolling basis and the availability of information at upgrade time depends on several factors.

TezLab Pro members benefit from unlimited history. The best way to ensure the continuity of data is to join as a Pro member as soon as possible upon downloading TezLab, and add a Vehicle Connection for each vehicle you own.

If your Pro membership ends, we provide a 30-day grace period to re-subscribe before data will be purged. If a Pro subscription is expired for 30+ days, the 30 day retention policy above will apply.