255 anonymous customer reviews. 7 days. 10 branches. Zero apps installed.
How a regional supermarket chain spun up an anonymous customer-feedback channel across all its branches in an afternoon - and got a 29% completion rate from shoppers who had no reason to trust them.
Industry benchmark for post-purchase anonymous surveys: 15–25% completion. This form ran at 29%.
How we measured this
Period: 7 consecutive days, June 2026. Scope: one regional supermarket chain, 10 branches, a single Anonymeter form reached by QR codes placed in-store.
Completion rate = completed submissions ÷ form views = 255 ÷ 878 = 29.0%. A “view” is one load of the form page; a “submission” is a completed, stored response. Both come from Anonymeter's own form counters - the same numbers the form owner sees in their dashboard.
No respondent tracking was used to produce these figures. Anonymeter stores no respondent IP, sets no tracking cookies for respondents, and has no way to identify who answered - so this is a count of views and submissions, not of unique people. A shopper who opened the form twice counts as two views.
What this is not: one customer in one market over one week - a single data point, not a controlled study. The 15–25% post-purchase benchmark is a published industry range, not a measurement we ran. Cite it as “one retail chain hit 29% on a 2-question anonymous form”, not as an average you should expect.
The setup
A regional supermarket chain operating 10+ branches across multiple cities wanted in-store customer feedback. The standard options didn't fit:
- ✕ Email surveys - they didn't have customer email addresses (and shouldn't need them just to ask "how was checkout today").
- ✕ App-based feedback - asking shoppers to install an app for a 30-second survey is a non-starter.
- ✕ Google Forms / Typeform - shoppers correctly assume their identity is being captured. Honest feedback dies on arrival.
- ✕ Cards at checkout - manual, costly, response rate near zero, no way to filter by branch.
They needed something that took a shopper from "I have something to say" to submitted in under 30 seconds, on a phone they were already holding, with no signup and no creeping feeling that someone is watching.
The 3-step setup
Pick the Retail template
Open /create-form, pick the
Retail / Supermarket Feedback
template. Six questions pre-filled: branch, overall rating, queue speed, stock availability, free-text feedback, return intent. Edit any question - or leave the defaults.
Print the link as a QR code
The form gets a short URL - something like anonymeter.com/f/abc123. Generate a QR code from it (any free generator works), put it on receipts, on shelf-talkers, on tills. One QR per chain - works across all branches because the form asks which branch they visited.
Read what's coming in
Responses land in a clean dashboard, filterable by branch. The owner gets a daily or weekly email digest - no need to log in every day. Each response is fully anonymous - no IP, no tracking cookie, no fingerprint. The only thing tied to a respondent is what they typed.
What 255 anonymous shoppers actually said
A sample of the themes that came through. Quotes are paraphrased and branch names anonymized to protect respondent anonymity (which is the whole point).
"Increase your staff and till points to avoid long queues. Staff offs or shifts are necessary since these guys work Sunday to Sunday - they are overworking."
Anonymous respondent · Branch redacted
"Your shop is always clean & we are getting good service but please provide variety of products like you do in [larger competitor]."
Anonymous respondent · Branch redacted
"I want to lodge a complaint about a till operator at [branch redacted]. They were rude to a customer in front of me…"
This is the type of feedback that NEVER comes via email surveys - too risky to put your name on it. Anonymous removed the friction.
"Goods should be displayed on shelves and prices displayed. Some commodities lie on the floor in shelves."
"Good services" · "No complaint" · "Clean store, friendly staff" - quick wins from happy customers who'd otherwise never say anything.
Important: some responses came in not in English - Anonymeter doesn't translate, but the form accepts any language. Owners can paste responses into their language tool of choice. This matters for multi-language markets where forcing English would kill response rate.
Why 29% works (and how to hit it)
A 29% completion rate on a 2-question text survey is well above the post-purchase benchmark of 15–25%. What this team got right, mechanically:
Short. Really short.
Two free-text questions, optional. No required ratings, no demographics, no email capture. Every additional required field costs roughly 5-10 percentage points of completion rate.
"100% Anonymous" badge visible at the top
Anonymeter's form-fill page leads with a visible anonymity badge. Shoppers see it before they read the questions. This single visual probably accounts for 30–40% of why people who opened actually finished.
No login. No app. No cookie banner.
From tap-QR to submitted: 3 taps. Every friction point (login wall, "we use cookies" dismiss, app install prompt) drops completion by 5–15%. This form has none of them.
Phrasing is invitation, not interrogation
"Do you have any suggestions, complaints, or comments…" not "Rate your satisfaction 1-5". The first one says "tell us what's on your mind"; the second says "fill out our form". The first works better.
What this chain really did was retire the comment card. If you're weighing the same move, we broke down the physical box vs. the digital one - cost, response volume, and why anonymity changes what people write - in the anonymous suggestion box guide.
Try the same template
Anonymeter is free for up to 3 forms. No credit card. The retail-feedback template is one click away.
Free forever · No credit card · No tracking pixels