What is Post Interaction Rate?
Post Interaction Rate measures how many people engage with a survey announcement or invitation (a “post”) relative to how many people saw it. It shows how effective your outreach is at prompting people to click, start, or otherwise interact with the survey link.
Post Interaction Rate (PIR) is the proportion of recipients or viewers of a survey announcement who take an interaction action — for example clicking the survey link, starting the survey, reacting or commenting on the post, sharing it, or using an in-post language selector. PIR is usually expressed as a percentage and calculated as: (total interactions ÷ total impressions or recipients) × 100. There are two common variants: impression-based PIR (interactions divided by impressions/views) and recipient-based PIR (interactions divided by number of messages delivered). Choose the variant that matches how you distributed the survey (social post, email, SMS, community newsletter).
Usage example
A school posts a multilingual survey announcement to a parent Facebook group that 2,000 people see. 140 people click the survey link and 20 people comment or share. Total interactions = 160. Post Interaction Rate = (160 ÷ 2,000) × 100 = 8%. The school uses that 8% PIR to compare performance with an email invite sent to 3,000 parents.
Practical application
PIR tells you whether your outreach message and channel are compelling enough to get people to engage. For Hearo users this matters because: - It shows which languages, wording or channels encourage people to open the survey in their preferred language. - It helps identify outreach that isn’t reaching or motivating some communities so you can adjust wording, timing or channel. - It lets you A/B test subject lines, translations or call-to-action text without changing the survey itself. - When combined with completion rate, PIR helps separate weak outreach (low PIR) from problems with the survey experience (high PIR but low completions). Using PIR saves time and budget by focusing translation and promotion efforts where they will increase participation most.
FAQ
What exactly counts as an "interaction"?
Common interactions are clicks on the survey link, taps on a language selector, replies or comments on the post, shares, and explicit actions like flagging unclear wording. Define which actions you count before measuring so comparisons are consistent.
How is Post Interaction Rate different from response rate or completion rate?
PIR measures engagement with the announcement or invite (did people click or interact). Response rate/completion rate measures how many people finished the survey after engaging. A high PIR with low completion rate points to problems in the survey experience; a low PIR suggests outreach or messaging needs improvement.
What is a good Post Interaction Rate benchmark?
Benchmarks vary by channel and audience. Social posts often have single-digit PIRs, targeted email can be higher. Rather than relying on a universal number, compare PIR across your channels, languages and message variants to find what works for your communities.
How can we improve Post Interaction Rate for multilingual audiences?
Make the post language-visible (show available languages), use clear calls to action, test translated subject lines and preview text, post at times your communities are active, and use community channels (trusted local groups). Track PIR by language and channel so you can invest translation or outreach resources where they lift engagement most.