Subscriptions made simple. Poweered by SolanaPay

Loopr is a decentralized subscription payment and management platform built on Solana. It enables businesses to integrate seamless subscription payments into their applications and allows users to manage all their subscriptions in one place.

• Demo Video (Click below to watch the youtube video): - Loopr BuildShowcase | Project Demo
  

• Pitch Deck / PPT Link: Loopr Pitch Deck

• Loopr Web SDK NPM Package :

• Android App APK: Download Loopr APK (Android)

• For Demo Experience - Scroll below ↓

Loopr simplifies recurring crypto payments by bringing subscription management to Solana. Today, dApps and Web3 merchants struggle with handling recurring payments, cross-chain fragmentation, and smooth onboarding for non-crypto-native users. Loopr solves this by providing a Web SDK and mobile application that enable seamless subscription setup, checkout with Solana Pay, and reward-based engagement — all without custodial risk.

Loopr serves both merchants and end-users. For merchants, it offers a plug-and-play SDK to integrate subscriptions directly into their platforms, eliminating the need to build complex billing infrastructure. For users, it provides a smooth checkout experience, clear subscription management, and reward incentives for loyalty. Developers gain a universal tool for recurring payments, while end-users get transparency, control, and convenience.

Meet Riya, a freelance designer in Bangalore who subscribes to multiple Web3 design tools and AI platforms. Traditionally, she would need to manually send tokens each month or rely on clunky, centralized fiat services. With Loopr, Riya simply selects the “Pro Plan” from a dApp’s pricing page. On checkout, she clicks “Pay with Loopr”, which instantly generates a Solana Pay QR code. She scans and pays once — her subscription is now automated on-chain.

On the merchant side, the AI platform’s developer integrates Loopr SDK in just a few lines of code, gaining access to:

• Plan configuration (monthly, quarterly, yearly pricing in USD → auto-converted to SOL),
• Subscription management (renewals, cancellations),
• Reward points to incentivize long-term users.

No manual invoicing, no fragmented tools — just seamless, transparent subscription management on Solana.

Managing subscriptions today is fragmented and frustrating. Subscriptions are scattered across cards, banks, and platforms. Cancelling or modifying requires contacting individual merchants. Users lack transparency, there are hidden charges or forgotten renewals pile up. Traditional payment systems (Visa, Mastercard, PayPal) are centralized and slow to innovate.

We chose this problem because subscriptions are the backbone of modern digital life — streaming, gaming, SaaS, fitness, education — yet the tools to manage them are outdated.

Loopr brings on-chain transparency, one-click control, and automated organization so users never feel locked in, overcharged, or lost in spreadsheets again.

1. Loopr SDK for Recurring Payments — We built a plug-and-play SDK that any company can integrate into their apps or websites. It enables recurring subscription payments powered by Solana Pay — without the complexity of managing autopay across banks and wallets.
2. One App for All Subscriptions — Instead of scattered autopays, multiple cards, and messy tracking, Loopr provides a single dashboard where users can see, manage, pause, or cancel all subscriptions in one place. It’s not just another analytics app — it’s a control center for your digital life.
3. Solana QR Support — Loopr works seamlessly with Solana Pay QRs. For dynamic Loopr QRs, subscription details are auto-filled. For static Solana QRs, users simply enter details manually, making it universally compatible.
4. Smooth Onboarding with Web3Auth — We integrated Web3Auth social logins so users can sign in with familiar Web2 methods (Google, Twitter, etc.) while still being onboarded into a Web3 wallet. This lowers friction and makes adoption easy.
5. Rewards Layer with NFTs — Every payment interaction (scanning a QR, subscribing, renewing) saves user metadata and subscription analytics on-chain. This allows companies to send curated NFT rewards that strengthen community engagement. The more loyal the user, the more exclusive the rewards.

Major Highlights of your project:

• ✅ Plug-and-play SDK for recurring subscription payments
• ✅ All-in-one mobile app to track, manage, pause, or cancel subscriptions
• ✅ Web3Auth social logins for seamless Web2 → Web3 onboarding
• ✅ Solana Pay QR support — dynamic auto-fill or manual setup for static QRs
• ✅ NFT rewards layer to engage and reward loyal subscribers
• ✅ On-chain transparency with verifiable transactions and spend insights

⚡️ The Real Struggle

Right now, subscriptions are messy. Users juggle multiple cards, wallets, and banks just to keep track of recurring payments. Cancelling often means contacting a merchant, hidden charges slip through, and there’s no unified way to manage everything. For companies, integrating recurring payments means relying on centralized processors that limit flexibility and user control. This complexity stops both users and businesses from truly embracing decentralized payments for everyday subscriptions.

But with Loopr, it’s different. Subscriptions become simple, transparent, and on-chain. Users onboard instantly with Web3Auth social logins — no seed phrases, no complex wallet setup. At checkout on any app/web, “Pay with Loopr” generates a QR. The user scans with the Loopr app → payment is made, subscription auto-tracked in their dashboard.

Cancelling or pausing is one click on-chain — no merchant approval needed. Every payment is verifiable, transparent, and organized.

For businesses, our plug-and-play Web SDK means integrating recurring Web3 payments is as simple as dropping in a button.ou onboard instantly — just sign in with your social login. No seed phrases. No extensions. No confusion. It feels like a regular app — but under the hood, it’s Web3-powered.

But this is only the beginning. Our roadmap includes expanding and becomes a universal option across merchants, building smarter dashboards with spending insights and alerts, and scaling our rewards system where every payment interaction can unlock curated NFT rewards. These NFTs aren’t just collectibles — they’re tools for brands to connect more deeply with loyal users, turning subscriptions into an engaging, reward-driven ecosystem.

In the long run, Loopr isn’t just another subscription tracker. It’s a complete rethinking of how subscriptions should work in the Web3 era: transparent, user-first, and reward-powered. Subscriptions are everywhere in modern life, and Loopr is here to make them effortless for users and smarter for businesses.

1. User signs in via Web3Auth social login (Google, Twitter, etc.) A non-custodial wallet is created under the hood — no seed phrases, no complexity.
2. Businesses/ Merchants use the Loopr SDK, eliminating the need to build complex billing infrastructure.
3. On a merchant’s website, user clicks “Pay with Loopr.
4. A dynamic QR code is generated. User opens the Loopr app and scans the QR.
5. For Loopr dynamic QRs → subscription details are auto-filled & for static Solana Pay QRs → user manually enters amount and billing cycle.
6. Payment is processed via Solana Pay and you are good to go !
7. User receives confirmation + optional NFT reward (coupon, collectible, or perk). Subscription details are saved on-chain and synced to the Loopr dashboard. Get alerts & insights for better budgeting
8. Every interaction (payment, renewal, milestone) can trigger NFT rewards curated by companies. NFTs help businesses engage loyal users while giving users portable, tradeable value.

• Language: TypeScript
• Framework: React (for UI components like PayWithLoopr)
• QR Code Generation: qrcode / qrcode.react
• Blockchain: Solana Pay integration using @solana/web3.js
• Plan Management: Custom configuration system

• Language: Kotlin, Java
• Authentication: Web3Auth (wallet onboarding) | Embedded Wallets
• Payments: sol4k sdk!

1. Switched from Static Wallets to Web3Auth Social Logins — We realized it would create massive friction for new users. Hence we moved to Web3Auth, this gave us a smooth Web2-like experience while staying Web3-native.
2. Dynamic vs Static QR Handling - At first, we planned to only support our own Loopr-generated QRs. Then we realized that merchants (and users) already use Solana Pay QRs. We engineered support for both.
3. Rewards Layer via NFTs - We debated whether rewards should just be points or badges. But points = Web2, closed, and boring. Hence we decided to issue NFT rewards tied to subscription activity. These NFTs can be collectibles, coupons, or perks — and most importantly, they’re portable and tradeable. This turned subscriptions into an engagement channel for companies, not just payments.
4. Contract Stack Exploration - We initially considered building contracts directly in Rust with Solana. But to speed things up and simplify dev experience, we narrowed down to Solana Pay’s proven base layer, then layered Loopr’s subscription + reward logic on top. This gave us a balance of both stability and innovation.

Feature	Status
Mobile app (Kotlin/Java)
Loopr Web SDK (TS)
Hosting & demos
Rewards NFTs
Subscription Analytics

⚠️ Project is still buggy but fully hosted and demo-ready.

Before running the project locally, ensure you have the following installed:

• Node.js (>=18.x)
• npm or yarn
• Rust
• Solana CLI
• Anchor Framework (if using Anchor for smart contracts)
• Git

git clone https://github.com/amitrajeet7635/Loopr.git
cd Loopr

1. Navigate to the SDK directory:

   cd Loopr-SDK

2. Install dependencies:

   npm install

3. Build the SDK:

   npm run build

4. (Optional) Link the SDK locally for use in another project:

   npm link

1. Navigate to the backend/contracts directory:

   cd Loopr-Backend

2. Build the contracts:

   cargo build-bpf

   or if using Anchor:

   anchor build

3. Start a local Solana test validator (in a separate terminal):

   solana-test-validator

4. Deploy the contracts:

   solana program deploy target/deploy/loopr.so

   or with Anchor:

   anchor deploy

# Clone the repo Loopr-android
# Build the project using Gradle

100% — this is not just a one-weekend hack. We’ve already built a working Web SDK (npm package) and a functional Android app prototype, and have been heads down on this for weeks. Loopr is here to stay. While this submission marks a milestone, our team is actively working to fix bugs and enhance the product. Also we have more ideas to expand and scale this further. If we receive enough positive feedback and community interest, we’ll take this from prototype to full production release.

Subscriptions made simple by LOOPR Powered by SolanaPay.

	Built by the Loopr Team
@amanna13 @amitrajeet7635

We're actively building, debugging, and prototyping —
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