Synchro is a decentralized, self-custodial subscription management platform that empowers users to take full control of their recurring payments while using crypto. This MVP focuses on gift card–compatible subscriptions and optional email-based subscription detection, pending future automation with non-custodial card issuance on Stellar.
Prevent unwanted recurring charges: Users only pay when they choose.
Non-custodial design: Synchro does not hold or control funds. Users manage payments directly via gift cards or local accounts.
Subscription awareness: Synchro sends reminders and provides direct cancel links.
Scalable roadmap: MVP will later evolve into fully automated payments once non-custodial Stellar card issuance is available.
Supported Payment Method
Crypto → Atomic Wallet → Gift Card (Visa, Amazon, Google Play, Steam)
- User Registers Subscriptions
Adds subscription details (Netflix, Spotify, Amazon Prime, etc.)
Optionally allows Synchro to fetch subscription-related emails.
- Synchro Sends Reminders
Notifications are sent 3 days before each subscription renewal (daily until payment).
Subscription name
Renewal date
Amount due
Link to purchase gift card via Atomic Wallet (if applicable)
Embedded cancel link to merchant’s subscription management page
- User Action — Purchase & Redeem Gift Card
Users purchase gift cards using crypto through Atomic Wallet or other approved providers.
Gift card is delivered to the user’s email.
Users manually redeem the gift card on the subscription service.
- Dashboard Tracking
Manual marking: Users mark the subscription as “Paid.”
Optional email fetching: If enabled, Synchro can detect gift card emails and automatically track subscription payments without storing sensitive codes.
- Cancelation
Each subscription entry includes a direct cancel link, so users can stop recurring payments anytime.
Supported Subscriptions (Phase 1)
Netflix
Spotify
Amazon Prime / Audible
YouTube Premium (via Google Play gift cards)
Steam subscriptions / in-app purchases
Only subscriptions compatible with gift cards are included in MVP.
Phase 1 MVP is designed as a manual + semi-automated solution:
Pending: Non-custodial Stellar wallet that issues virtual cards.
Future Phase: Once Stellar supports non-custodial card issuance:
Synchro will automatically fund subscription payments from user crypto
Fully automated recurring payment control
Still retains non-custodial principles — users own their funds at all times
Non-Custodial: Users remain in full control of their crypto and payments.
User-Centric: Synchro enables users to make intentional subscription payments.
Low-Risk MVP: Gift card–based workflow avoids complex integration while demonstrating core value.
Scalable: Phase 1 is a foundation for automated Stellar card integration.
Users avoid accidental charges or unwanted recurring payments
Simple, non-custodial workflow for crypto users
Tracks subscriptions, sends reminders, and provides cancelation support
Works globally where gift cards are supported
Prepares the ecosystem for fully automated crypto-to-fiat subscription payments in future versions
Synchro MVP does not execute payments on behalf of users. Users are responsible for:
Purchasing gift cards
Redeeming gift cards
Ensuring the subscription is covered
Maintaining card balance
Synchro only tracks subscriptions, sends reminders, and provides guidance to make subscription management easier and safer.