Why Appchains?

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The Appchain Advantage

Traditional blockchain deployment forces you to choose between scalability and composability. With appchains, you get both.

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Sovereignty Meets Settlement

A based appchain combines the advantages of running an appchain (such as customizability, scalability, and sovereignty) with the benefits of deploying a smart contract on its base layer (such as composability and simplicity). Key Benefits:

• Scalability - Dynamically adjust gas limits to support high throughput and user demand
• Stability - Avoid “noisy neighbor” issues with tx fee isolation and dedicated execution
• Accessibility - Seamlessly tap into parent chain’s existing liquidity and users
• Profitability - Capture more value with customizable fee structures and token models
• Sovereignty - Full control over infrastructure, fees, and brand identity
• Simplicity - Minimal infra to setup and manage—e.g. no duplicative oracle deployments

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Comparison: Appchains vs Alternatives

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Migration Considerations

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For New Applications

• Start with Appchains - Build with composability from day one
• Future-proof - Your app grows with the ecosystem
• Lower complexity - No bridge integrations or async handling

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For Existing Applications

• Gradual migration - Start with read operations, expand over time
• Maintain UX - Users don’t need to learn new interfaces
• Preserve liquidity - Tap into existing settlement chain ecosystems

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The Based Appchain Promise

We’re building toward a future where every appchain can compose with every other appchain under the same settlement layer. This creates:

• Unified liquidity across all applications
• Atomic operations spanning multiple chains
• Simplified developer experience - write once, compose everywhere

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Learn More

• Core Concepts - Understand based appchains and synchronous composability
• Get Started - Deploy your first appchain with Pylon