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Digital loyalty cards in Apple & Google Wallet

The modern platform for creating, sharing, and collaborating on AI prompts. Advanced version control and real-time testing.

Website, pricing, platforms and company facts side by side.
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| Website | pikarta.app | diffyn.com |
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| Company | Startup from Georgia · 1 - 9 employees | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Pikarta is a simpler alternative to Loopy Loyalty, Loyverse and Passcreator — a digital loyalty platform for cafés, barbershops, salons and shops that want a loyalty program without plastic cards or a separate app for their customers. Customers join by scanning a QR code and get their loyalty...
No description of Diffyn yet.
What each product offers, as listed by its team.


An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
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Overall verdict
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The Ultimate Prompt Tool for Creators – Visualize & Organize with Diffyn
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Pikarta.app and Diffyn.
Pikarta.app's answer
The loyalty card lives directly in the customer's Apple Wallet or Google Wallet — there's no plastic card and no separate app to install. Customers join by scanning a QR code, and whenever the business updates the card (banner, colors, rules), it refreshes on every customer's phone automatically.
Diffyn's answer:
Addresses workflow and change management on LLM prompts, provide teams with traceability and visualization of tests across multiple models, provide deeper understading into efficiency of these prompts.
Pikarta.app's answer
Pikarta is built for small offline businesses, not enterprises. You launch a full loyalty program in minutes — pick a mechanic (stamps, points, cashback or discount), design the card, and share a QR code. Staff stamp at the counter with a PIN-based cashier login, without access to your settings. No POS lock-in, no plastic cards, no app for customers to download.
Diffyn's answer:
Diffyn is the platform that specializes on both change management and multi-model analysis.
Pikarta.app's answer
Pikarta is a native iOS app for business owners backed by a secure cloud platform. Customer loyalty cards are issued through the official Apple Wallet and Google Wallet standards. We don't disclose further implementation details.
Diffyn's answer:
React, Next.js, POSTGRESQL
Pikarta.app's answer
Small and medium local businesses with repeat walk-in customers: cafés, barbershops, beauty salons, bakeries, and independent retail shops. Owners who want the loyalty tech big chains have, without the cost or complexity.
Diffyn's answer:
Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.
Pikarta.app's answer
Small shops lose regulars to paper punch cards that customers forget or throw away. Pikarta was built to give any local café, barbershop or store the same loyalty tech big chains have — living in the customer's Apple or Google Wallet, with no plastic and no separate app to install.
Diffyn's answer:
I started working on Diffyn when I notice that prompting has become an essential part of work across many industries. While there are version control platofrms like github, they are not designed for just prompt management are can be overkill such applications, it is also not integrated natively with various LLMs and relevant tools for users to validate ideas and visualise results properly.
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Digital loyalty cards that live in Apple & Google Wallet. No app for customers to download. Set up in 5 minutes. Free 30-day trial.
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Loyalty passes that live in Apple Wallet and Google Wallet. No app to download for customers. Supports stamp cards, points programs, gift cards, referrals, and analytics, built for any business that values repeat customers. 14 days free Pro trial.
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Digital loyalty card service for SME retailers and eateries
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Turn repeat visits into rewards with Apple & Google Wallet loyalty passes. Digital stamps, rewards, and push notifications. No customer apps required.
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Discover millions of rewards from thousands of local businesses.
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