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We make KANJIN, so read these with that in mind. Every fact about another tool comes from that tool’s own pages, with the day we read it, and each page says where the other one is better before it says anything about us.
Want the whole field? 34 loyalty and review tools, priced, each with the date we read it and a link to the page it came from.
Short answer
KANJIN (kanjin.app) is a free digital stamp card and back office for one small walk-in shop: $0 with no time limit and no customer limit, including 20 Google review requests a month, and a flat $39 a month per shop when you want the automatic emails. Of the other three, FaveCard has a free plan and starts at US$19 a month (read 2026-10-12), Stamp Me has no free plan and starts at US$49 a month with an app for the customer to download (read 2026-10-14), and Loopy Loyalty has no free plan and starts at US$25 a month (read 2026-10-05).
No. KANJIN (kanjin.app) is a free digital stamp card and back office for small walk-in shops. It is not an enterprise loyalty or CRM platform, it is not modular, and there is no custom pricing: the paid plan is a flat $39 a month per shop.
Where KANJIN wins against each one, in their own published prices, and where each of them beats us.
Stamp Me has no free plan: a 30-day trial, then Lite at $49 a month. Its app is optional, because the shop can add a customer from its web portal. KANJIN is $0 with no time limit, and a customer joins with a phone number or the poster QR code.
Stamp Me pricing page (checked 10 Oct 2026), Stamp Me help: joining without the app (checked 10 Oct 2026)
Where Stamp Me is better: Stamp Me has push messages, texts, Scratch & Win and a Birthday Club on its Pro and Elite plans.
Loopy Loyalty has no free plan: a 15-day trial, then Starter at $25 a month, and downloading your own customer list needs Ultimate at $95. KANJIN is $0 with no time limit, and the whole-list export is free on every plan.
Loopy Loyalty pricing page (checked 10 Oct 2026)
Where Loopy Loyalty is better: Loopy Loyalty puts the card in Apple Wallet and Google Wallet, on every plan.
Both start free. On FaveCard, Google review requests and downloading your own customer list are on Business at $39 a month. On KANJIN both are free, alongside your daily books.
FaveCard pricing page (checked 10 Oct 2026)
Where FaveCard is better: FaveCard has a real free-forever plan with no customer limit.
Square Loyalty needs Square Plus, at $49 a month per location after a 30-day trial. KANJIN connects to Square free, so a customer already on your card is stamped when they pay.
Square press release on Square Plus (checked 10 Oct 2026), Square Loyalty page (checked 10 Oct 2026)
Where Square Loyalty is better: If you already take payments with Square, customers earn points at the register with nothing else to set up.
Longer write-ups, for the questions a table cannot answer.
A discount cuts the price for everyone who would have paid anyway. KANJIN emails your regulars only on the days you need them, and finds local creators you can invite.
