dbappsystems.com

Application Solutions. Cloud Infrastructure. Smart Contracts.

End-to-end custom software engineered for performance and scale — from concept to production-ready deployment, at the edge and on-chain.

Six Disciplines. One Shop.

Custom apps, database architecture, edge deployment, on-chain contracts, and the messaging layer that ties them together — complete engineering for businesses that need it built right.

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Application Solutions

Custom web applications and mobile-first platforms engineered to your exact specifications. React, Next.js, and Vite frontends — plus plain HTML and vanilla JS when that is the right tool — with clean, maintainable architecture built from the ground up.

ReactNext.jsVitePWA
Database Integration

Structured data architecture, schema design, and multi-platform database integration. We connect your systems, normalize your data, and build the APIs that make everything work together seamlessly.

Cloudflare D1Workers KVPostgreSQLREST API
Cloud Infrastructure

Cloudflare-native deployments — serverless Workers, R2 object storage, D1, and static assets at the global edge. We architect infrastructure that scales without the overhead of bloated platforms.

WorkersStatic AssetsR2 StorageEdge Deploy
Smart Contracts & Web3

Production Solidity contracts for escrow, payment splitting, vesting, token gating, on-chain records, and governance. Written, compiled, and deployed to EVM networks — with a browser-based compiler and deployer toolchain we built in-house.

SolidityPolygonEVMethers.js
Messaging & Notifications

SMS, voice, and transactional email wired directly into your application — dispatch alerts, appointment reminders, OTP verification, and delivery confirmations. Built on Twilio and Cloudflare Email Routing.

Twilio SMSVoiceVerify OTPEmail Routing
API & Services Integration

Third-party API wiring, webhook pipelines, and service integrations that unify your tools into one working system — payments, project management, authentication, document generation, and beyond.

StripeZohoOAuth 2.0Webhooks
ReactNext.jsViteCloudflare WorkersStatic AssetsCloudflare D1Cloudflare R2Workers KVSolidityPolygonEVMethers.jsTwilioStripeZohoGitHubNode.jsREST APIsjsPDF ReactNext.jsViteCloudflare WorkersStatic AssetsCloudflare D1Cloudflare R2Workers KVSolidityPolygonEVMethers.jsTwilioStripeZohoGitHubNode.jsREST APIsjsPDF

Built, Shipped, Running.

A family of field-service and operations platforms built under the dbappsystems.com umbrella — each one a complete authenticate, dispatch, complete, invoice workflow for a different trade.

execucart.com
Driver Dispatch & Cart Operations

Sign in, accept job, complete delivery. Confirmed completion with live status updates back to dispatch.

loadledgers.com
Load Tracking & Carrier Ledgers

Log the load, track miles and fuel, generate the ledger. Accurate net pay and clean compliance records.

spotlessroute.com
Mobile Detailing Routes

Book the slot, take the deposit, detail on site. Service confirmation with before and after photo capture.

burnjukebox.com
Digital Jukebox Platform

Authenticate, queue tracks, control playback. Seamless play sessions with a full usage log per venue.

certifiedsewertech-chs.com
Sewer Tech Business Management

Login, assign job, complete service report. Work orders close out with automatic customer notification.

hvacprologin.com
HVAC Professional Platform

Authenticate, schedule, diagnose, invoice. Secure login tied to a permanent completed-job record.

constructionpro-login.com
Construction Pro Platform

Authenticate, schedule, diagnose, invoice. Secure login tied to a permanent completed-job record.

Fifty Contracts. Seven Categories.

A production library of single-purpose Solidity widgets — each one small, readable, and doing exactly one job. Pay a fraction of a cent per use, or take a one-time NFT license for unlimited perpetual access.

Polygon Mainnet · 38 Deployed EVM Compatible Crypto Payment Only In-Browser Compiler & Deployer
W001 – W010
Payments & Money Movement

Micro escrow, revenue splitter, batch sender, tip splitter, recurring payment, vesting schedule, token lockup, receipt logger, invoice registry, royalty distributor.

W011 – W018
Access & Permissions

Whitelist manager, rate limiter, time-gated access, access pass issuer, subscription validator, role manager, token gating checker, KYC status flag.

W019 – W026
Records & Verification

Timestamp notary, document hash registry, on-chain changelog, business license stamp, proof of attendance, on-chain business card, credential logger, task sign-off logger.

W027 – W034
Developer Tools

Proxy deployer, event logger, on-chain config store, address validator, nonce manager, gas price snapshot, contract registry, multicall executor.

W035 – W039
Governance & Voting

Simple yes/no vote, weighted poll, team approval chain, quorum checker, proposal registry.

W040 – W045
NFT Utilities

NFT rental, fractionalizer, bundle creator, allowlist minter, royalty enforcer, license issuer.

W046 – W050
Team & Collaboration

Multisig lite, milestone tracker, team treasury manager, bounty board, referral tracker.

// Every deployed widget links to its Polygonscan record. Verify before you integrate.
// Contracts are provided for integration and review — they are not investment products, and nothing here is financial advice.

dbappsystems.com

Engineering-First.
Production-Ready.

dbappsystems.com is an independent software development operation specializing in custom application solutions, cloud infrastructure, and on-chain contract work for businesses and development teams who need a technical partner — not a template shop.

We work with developers, small businesses, and technical leads on small to mid-size projects where precision and craftsmanship matter. Every build is custom. Every deployment is production-ready.

US-based. Cloudflare-native. Built to last.

7Platforms Shipped
50Contract Widgets
38Live On-Chain

Start a Project

Tell us about what you're building. We'll review your inquiry and reach out directly.