Signal21 vs. Stacks Comparison Chart

CEX.IO is a regulated multi-functional cryptocurrency exchange. Established in 2013, it now has offices in the UK, US, Ukraine, Cyprus, and Gibraltar. With more than 3 million users across the globe, CEX.IO provides reliable services backed by cold cryptocurrency storage, financial viability, high security, and KYC/AML best practices. CEX.IO Exchange was one of the first platforms to make fiat-to-crypto transactions accessible by offering card payments and bank transfers to the clients. Currently, we provide a variety of trading tools for Bitcoin, Bitcoin Cash, Ethereum, Ripple, Stellar, Litecoin, Tron, and other crypto assets. You can trade these cryptocurrencies for USD, EUR, GBP, and RUB. We know that mobility matters, so we’ve enabled trading through a website, iOS and Android mobile apps, WebSocket, and REST API.

YouHodler is a fintech company bridging the gap between traditional finance and crypto. We are dedicated to providing secure and innovative financial solutions to customers from over 100 countries The platform offers a secure multi-currency wallet supporting major cryptocurrencies and fiat currencies, including BTC, ETH, XRP, EUR, USD, and CHF. Users can access advanced trading tools to optimize their market strategies, get cash for liquidity without selling their assets, and earn rewards through yield accounts. These services enable YouHodler’s customers to: - Get cash for more than 50 coins as collateral. LTV up to 90%. Bank and credit card withdrawals - Exchange cryptocurrency and fiat with real-time execution prices and low fees - Earn up to 20% annually on your crypto and get payouts every week. YouHodler's Cloud Miner lets you earn real Bitcoin effortlessly without using your device's power.

ND Wallet is a modular white-label non-custodial crypto wallet foundation developed by ND Labs for businesses launching branded digital asset products. The solution includes customizable iOS and Android applications, multi-chain support, secure local key storage, core transaction flows, swaps and monetization options, admin tools, cloud infrastructure, and launch security checks. Optional modules can include social login, MPC custody, fiat on/off-ramps, KYC/AML integrations, NFT support, WalletConnect and dApp access, DeFi and staking, additional blockchain networks, an AI assistant, and web or desktop delivery. The final feature set, pricing, support model, and launch timeline depend on the selected platforms, networks, integrations, and customization requirements.

Chainstack is a blockchain node platform that powers global Web3 applications across fintech, DeFi, wallets, custodians, gaming, AI agents, trading, and analytics. Chainstack's core products include Global Node, low-latency RPC endpoints for everyday workloads; Dedicated Node, single-tenant nodes with guaranteed resources for heavy workloads; reliable infrastructure built for trading bots and MEV strategies; and Unlimited Node, an add-on for unmetered request scaling. Together with Chainstack Self-Hosted for teams that need infrastructure on their own premises, these products cover every stage from prototyping to institutional-scale deployment. Chainstack supports major blockchain networks, including Ethereum, Solana, BNB Chain, Polygon, Hyperliquid, Arc, Robinhood Chain, and other EVM-based and non-EVM chains, with elastic (auto-scaling) and dedicated node instances across mainnet and testnet. For Solana-focused trading and MEV operators, Chainstack offers the Yellowstone gRPC Geyser plugin for real-time on-chain data streaming and Jito ShredStream for low-latency transaction propagation. Deployment options span the public cloud, preferred service providers, or fully self-hosted infrastructure, all managed through a single console with standardized node management across chains and environments. Core infrastructure features include global load-balanced RPC endpoints, blockchain data APIs, node monitoring, and request-unit-based usage tracking, keeping performance predictable and costs transparent as usage grows. Chainstack offers a free Developer plan alongside paid Growth, Pro, Business, and Enterprise plans, so teams can start building at no cost and scale into preferred infrastructure setup as usage grows. Teams cut time-to-market, cost, and risk with a single platform for blockchain nodes, whether in the cloud, through a preferred service provider, or self-hosted. Standardized node management across chains and environments puts reliability on autopilot and keeps performance predictable. Operators get control and transparency, while developers get a consistent way to build and scale. Fintech companies, DeFi protocols, wallets, custodians, trading firms, analytics platforms, and Web3 service providers running fleets use Chainstack as the fastest way to run reliable, predictable blockchain nodes at scale.

BYDFi is a global crypto trading platform powered by a centralized exchange (CEX). Since launching in 2020, BYDFi has focused on delivering a world-class trading experience for users worldwide. Today, BYDFi supports over 1,000,000 users across 190+ countries and is known for its ease of use, low fees, advanced trading tools. Guided by the vision “BUIDL Your Dream Finance,” BYDFi empowers beginners and professionals alike to trade confidently across spot markets, perpetual futures, TradFi (stocks, forex & commodities), and automated strategies. In December 2023, BYDFi was recognized by Forbes as one of the Top 10 Global Crypto Exchanges, highlighting its rapid growth and product strength. In 2025, BYDFi further strengthened its global presence through a multi-year partnership with Newcastle United, becoming the Premier League club’s Official Crypto Exchange Partner. This collaboration enhances BYDFi’s international brand visibility and reinforces its commitment to building a trusted and influential global crypto ecosystem.

Revaly is a Payment Performance Management platform designed to ensure that every legitimate transaction succeeds, protecting the recurring revenue businesses depend on. It uses exclusive issuer signals, network intelligence, and AI-powered optimization to maximize payment approvals across the entire lifecycle. By preventing avoidable failures at the first attempt and intelligently recovering declined payments, Revaly reduces involuntary churn and strengthens customer relationships. The platform continuously analyzes routing errors, behavioral patterns, and ecosystem signals to turn unpredictable payments into predictable revenue. Subscription-based companies rely on Revaly to lift approval rates and compound revenue growth without disrupting their existing billing stack. With over 100 integrations, the system fits seamlessly into current workflows while delivering measurable, long-term financial impact.

MindCloud is an enterprise-ready integration platform that connects your tools and automates the workflows between them. Build reliable integrations across CRM, ERP, ecommerce, accounting, marketing, operations, and thousands of other applications—without the traditional engineering overhead. MindCloud gives teams the flexibility to automate simple tasks or orchestrate complex, production-critical business processes. Synchronize data in real time, transform information between systems, eliminate manual entry, and keep operations moving as your business scales. For teams that want expert guidance, MindCloud also provides a dedicated delivery team that can scope, build, launch, and support production workflows. Our solutions engineers turn real business requirements into dependable integrations without requiring customers to dedicate internal engineering resources. MindCloud supports thousands of applications, including Salesforce, HubSpot, NetSuite, QuickBooks, BigCommerce, Shopify, monday.com, ServiceTitan, Acumatica, Amazon, eBay, Airtable, Google Sheets, and many more. Connect to anything. Automate everything.

MikMak, a SPINS company, provides real-time commerce intelligence and orchestration software to help brands grow in real-time. Operating in 100+ countries with 8,000+ media and retailer partners worldwide, the MikMak Platform empowers multichannel brands to quickly understand what is working, take immediate action, and plan and optimize for the future. Enable Commerce Everywhere with MikMak Commerce: Build seamless paths to checkout from any retailer across your entire media mix, leveraging AI for inventory accuracy Measure the Omnichannel Outcome with MikMak Insights: Proprietary AI synthesizes complex data into actionable recommendations, revealing retailer sales impact, consumer behavior, and more Plan and Optimize Future Outcomes with MikMak Aura: Connect full-funnel media spend to incremental retailer sales performance, providing real-time AI-powered intelligence to drive smarter, more profitable growth

One Platform. Total AP Control. Zahara is an accounts payable automation platform that helps finance teams keep control of spend across every site, team, project and entity, from purchase request to supplier payment, without a full ERP transformation. Control spend wherever it happens. Purchase requests are raised in seconds, from approved catalogues if you want to restrict what can be bought and from whom, then routed through multi-step approvals built around your sites, departments and projects. Approvers see the budget impact before they say yes, and approved purchase orders go straight to the supplier. Modernise without replacing your finance system. Zahara integrates directly with Xero, Sage 50 and Sage 200, QuickBooks Online and MYOB, with connectors for most other systems. Your accounts system stays the single source of truth; Zahara replaces the paper, email approvals and spreadsheets around it. Process more, with less admin. Invoices emailed into Zahara's Invoice Inbox are read by AI, which identifies the supplier, extracts line items and completes three-way matching against the purchase order and delivery receipt before routing for approval. Approved invoices flow into payment runs, including multi-currency payments with Currencies Direct. Governance built into everyday spend. Budgets are allocated to GL codes, with committed and pending spend tracked in real time. Every request, approval, invoice and payment carries a complete audit trail. Controls that scale as you grow. As you add sites, entities or acquisitions, new locations, budgets and approvers slot into the same workflows, so finance keeps visibility without adding manual checks. For staff expenses, sister product AI Expenses captures receipts automatically, routes claims for approval and reimburses your team as soon as sign-off lands. Built for service-based, growing organisations in construction, care, charities, hospitality, education and professional services, and used by finance teams at Lush, British Airways Holidays and CHD Living. Guided implementation takes weeks, not months, with UK-based support and no minimum term on monthly plans.

A case management CRM that focuses on your clients, to measure real-world impact, not just data. Your Day Just Got Shorter - We know you’re busy and don’t have time for complicated software – We’ve changed that! Even your staff will enjoy using the system – No more headaches and missing data from reports so you can use your valuable time to serve more people. CharityTracker is a cloud-based, HIPAA compliant software that’s easy to use for nonprofits of all sizes. With no setup fees, hidden fees, or contracts, you can cancel anytime! Our time saving solution provides a secure way to streamline how you manage cases, record case notes & assistance, create reports, collaborate, set goals, measure outcomes, make referrals & prove your impact with change-over-time reports for your funders. We're at work in 2,200 communities! Book a free demo. Pricing starts at just $20/mo. user