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StampyWallet VS Nullstack

Compare StampyWallet VS Nullstack and see what are their differences

StampyWallet

Stamp loyalty cards for cafés, bakeries and local shops. Customers scan a QR code and the card goes into Apple or Google Wallet. Nothing to install.

Rating
0 reviews
Pricing
Paid Free trial $29 / Monthly (Essential plan, 30-day free trial)
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Alternatives Is it good?
Nullstack

Full-stack Javascript Components for one-dev armies

Rating
0 reviews
Pricing
Open source
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Alternatives Is it good?
Propello Cloud
Grow Revenue, Reduce Customer Churn, Retain Customers. Reward-driven customer loyalty & retention programmes, partner marketing platform and referral programmes sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Customer Loyalty Program popularity
100% vs 0%
alternatives listed
51 vs 1

Base details

Website, pricing, platforms and company facts side by side.

StampyWallet
Nullstack
Website stampywallet.com nullstack.app
Pricing
Paid Free trial $29 / Monthly (Essential plan, 30-day free trial) Official pricing
Open source
Platforms
Web iPhone Android
—
Company Startup from France · 2026 —
Listed in
Loyalty Programs Restaurant Loyalty Software Customer Loyalty Program Loyalty Marketing Customer Retention Customer Engagement Barcode And QR Code +4
Framework JavaScript Tech Typescript +1

About StampyWallet and Nullstack

In their own words, as submitted to SaaSHub.

StampyWallet
Nullstack

StampyWallet replaces paper stamp cards with a loyalty card that lives in your customers' phones, in Apple Wallet and Google Wallet. No app to download, no hardware to buy. How it works - Print the poster StampyWallet makes for you and put it by the till. - Customers scan the QR code and add...

Read more about StampyWallet

No description of Nullstack yet.

Features and specs

What each product offers, as listed by its team.

StampyWallet 5 features
Nullstack 5 features
  • No app download required
    Loyalty cards are added straight to Apple Wallet or Google Wallet, so customers don't have to install a separate app. This lowers the barrier to joining a loyalty program.
  • Replaces paper stamp cards
    A digital stamp card can't be lost, forgotten at home, or easily faked. It cuts printing costs and keeps the card in the customer's phone.
  • Easy setup for small businesses
    Services like this usually let a shop create and launch a branded loyalty card quickly, without developers or hardware. That suits cafés, salons, and local retailers.
  • Customer engagement via wallet notifications
    Wallet passes can show updates and lock-screen notifications. Businesses can use these to remind customers about rewards or send promotions, which can encourage repeat visits.
  • Customer data and insights
    A digital program can give businesses visibility into how often customers visit and redeem rewards. This helps them judge how well the loyalty program is working.
  • Full-Stack Capabilities
    Nullstack allows for the development of both client-side and server-side functionalities within a single project, providing a more unified development process.
  • Seamless SSR
    It offers built-in support for server-side rendering, improving performance and SEO without the need for complex configurations.
  • Zero tooling
    Nullstack provides a setup that requires minimal configuration and does not depend heavily on additional tools, simplifying the development workflow.
  • Component-based Architecture
    Promotes the use of components, encouraging modularity and reusability of code, which can improve maintainability and scalability of applications.
  • Hot Module Replacement
    Supports HMR, allowing developers to see immediate changes in their applications without refreshing the entire page, improving development efficiency.

Possible disadvantages

  • Smaller Community
    Compared to more established frameworks, Nullstack has a smaller community, which can result in fewer resources and third-party tools.
  • Learning Curve
    Developers need to learn the Nullstack-specific ways of handling both front-end and back-end development, which might be a hurdle for those accustomed to other frameworks.
  • Limited Ecosystem
    Due to its newer and less widely adopted nature, there might be limited third-party libraries and plugins readily available compared to more mature frameworks.
  • Rapidly Evolving
    Being relatively new and possibly evolving quickly, developers might face breaking changes more frequently compared to more established technologies.

Videos

Walkthroughs and reviews on video.

StampyWallet 0 videos + Add
Nullstack 3 videos + Add

No StampyWallet videos yet. You could help us improve this page by suggesting one.

Full-stack with Nullstack - Part 3

More videos

  • - nullstack ship tracker
  • - Como fazer um Hello World com Nullstack passo a passo

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
StampyWallet
Nullstack
100% 100%
Customer Loyalty Program
0% 0%
0% 0%
Framework
100% 100%
100% 100%
Loyalty Programs
0% 0%
0% 0%
JavaScript
100% 100%

Questions & Answers

As answered by people managing StampyWallet and Nullstack.

What makes your product unique?

StampyWallet's answer

The loyalty card is a real Apple Wallet and Google Wallet pass, not an app and not a web page customers have to bookmark. They add it in a few seconds from a QR code, it stays on their phone, and it updates on their lock screen after every stamp. On the shop side, there is nothing to buy or install: you scan cards with the phone you already have. And the dashboard does more than count stamps: it shows which regulars are drifting away and lets you bring them back with a message on their lock screen.

Why should a person choose your product over its competitors?

StampyWallet's answer

Because it is built for small shops that want a loyalty card running today, not a project. Setup takes about five minutes, there is no tablet or card reader to buy, and staff accounts are unlimited on every plan. Customers don't download an app, which is where most loyalty apps lose them. Win-back messages, birthday rewards and Google review requests are included, with a 30-day free trial and no commitment. Your customer data stays in the EU and you can export it at any time.

How would you describe the primary audience of your product?

StampyWallet's answer

Independent local businesses that live on repeat visits: cafés, bakeries, restaurants, pastry shops, nail and lash studios, hair and beauty salons, florists and small retailers. Usually the owner runs the shop and the loyalty program alone, has no time for a complex tool, and still uses paper stamp cards or nothing at all. StampyWallet started in France and works in English, French and Spanish.

What's the story behind your product?

StampyWallet's answer

StampyWallet is built by a small independent team in France and launched in August 2026. The starting point was simple: local shops still ran their loyalty on paper cards that customers lose or forget, while the tools meant to replace them asked for an app, a tablet or a long setup. Apple Wallet and Google Wallet were already on every customer's phone, so the card should live there. The product keeps evolving through conversations with the shop owners who try it.

Which are the primary technologies used for building your product?

StampyWallet's answer

  • Node.js with Fastify for the web app and API
  • PostgreSQL, hosted in the EU
  • Apple Wallet: PassKit passes, updated through Apple push notifications
  • Google Wallet API for Android
  • Server-rendered HTML with Tailwind CSS
  • Docker, deployed with Dokploy

User comments

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Alternatives to StampyWallet and Nullstack

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