The Surveda survey tool is an online software for creating and deploying surveys using with Short Message Service (SMS), Interactive phone calls or Mobile W...

The Surveda tool is for anyone who wants to ask questions among a given population using SMS, phone calls, or the web.

The Ask tool is available for free for anyone to use. In most cases, the mobile network operator will assess a usage fee for each message or call sent. Thes...

The Surveda tool is built on top of existing open source tools - specifically InSTEDD's Verboice and Nuntium.  The Surveda Survey tool itself leverages ...

No, re-contact attempts are cumulative, the total amount of contact attempts that the tool will do is determined by the configuration.  For example:  ...

Once in fallback mode, the respondent will start the questionnaire from where they left off in the primary mode. In other words, each question is only going...

A single record is collected for each individual, regardless of via which mode data came from. If half of the questionnaire was completed through IVR and th...

When setting up experiments, you can define different percentages for each experimental condition. The platform will initially allocate cases to each experi...

If you can't find an answer to your question, or in general would like to speak with a human - submit a ticket.

External variables Channel credit We should check if there's enough credit in the channel to run the survey. There are many ways to estimate this Ov...