Punchly.me VS Diffyn

Punchly.me's answer

Punchly is the only digital loyalty program that requires absolutely no app download — not even for setup. Customers scan a QR code and their punch card opens instantly in their phone browser. Every stamp requires a staff PIN, making fraud virtually impossible. And unlike most loyalty platforms, Punchly is built specifically for EU small businesses: GDPR-compliant by default, EU-hosted, with opt-in consent and easy data export built in from day one.

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.

Punchly.me's answer

Most loyalty platforms make you choose between simplicity and power. Paper cards are simple but get lost, forged, and provide zero data. App-based solutions are powerful but customers rarely download them. Punchly delivers both: customers are live in seconds with a browser-based card, while owners get a full analytics dashboard, automated re-engagement reminders, and fraud protection — all for a flat €24/month with no contracts, no hardware, and no POS integration required.

Diffyn's answer:

Diffyn is the platform that specializes on both change management and multi-model analysis.

Punchly.me's answer

Punchly is a web-based SaaS application. The customer-facing loyalty cards run entirely in the browser using modern web technologies (PWA-compatible), requiring no native app installation on any platform. The platform is cloud-hosted on EU servers to ensure GDPR compliance and data residency for European customers.

Diffyn's answer:

React, Next.js, POSTGRESQL

Punchly.me's answer

Independent café owners, salon managers, bakeries, and small retail shops — typically 1 to 50 employees — who want to increase repeat visits without the complexity or cost of enterprise loyalty software. They've often tried paper punch cards (and dealt with fraud and lost cards) or a loyalty app (that customers never downloaded). They need something that works at the counter in under 10 seconds per transaction.

Diffyn's answer:

Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.

Punchly.me's answer

Punchly was built after seeing how many small business owners were stuck choosing between paper punch cards that got scammed and complex loyalty apps their customers refused to download. The goal was simple: build a loyalty program so frictionless that both staff and customers would actually use it. No app installs, no POS integrations, no weeks of setup. Just scan, stamp, and bring customers back.

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.