In plain English
It gives extra mobile internet use as a separate option. The allowance is for data use only, with no call minutes or text messages included.
In context
Here, "data-only add-on" names an optional extra service that provides data allowance without including minutes or texts.
- Situation
- Choosing mobile plans, allowances, roaming, fair-use, and add-ons
- What it communicates
- names an optional extra that is presented as data only.
Meaning limits
The term alone does not say how much data allowance is included.
Examples
“He chose a data-only add-on for the trip because he only needed mobile internet, not call minutes or texts.”
“After her allowance ran low, she added a data-only add-on to the account.”