Yes, if you configure the settings.
Each poll has a feature called Number of votes allowed per device. This feature allows limiting voting from once up until unlimited.
The default setting for polls is "1 response per device". This means that from one phone number only one vote will be accepted, and one vote will be accepted on the web too.
Important: when this limitation is enabled, one person can still vote once via sms and once on the web, because there is no way of tracking the same person across voting channels and identifying if that person has already voted through one of the mediums.
You can change that limit using our slider and set it to a custom amount:
If you don't want to impose any limits, then set it to Unlimited:
Additionally, you can restrict the voting limit to apply per poll, per month, per week, per day, or per hour.