RainbowKit vs Functions vs Synapse Protocol
Build an ecosystem optimized for your goals while opening up new revenue streams.
Comparison Summary
RainbowKit, Functions and Synapse Protocol each address unique challenges in the web3 ecosystem, offering complementary strengths for builders. A React library that simplifies adding wallet connection to web3 applications with customizable UI and built-in wallet management. Gelato provides infrastructure and SDKs to build smart wallets, gasless transactions, and custom rollups with ERC-4337 & 7702 support across 100+ chains. Synapse is an interchain messaging protocol and cross-chain bridge enabling decentralized applications to operate across multiple blockchains. Together, these tools serve different but overlapping user needs, making them valuable components in a modern web3 development stack.
| At a Glance | |||
| Composability | |||
| Cross-Chain | |||
| Customizability | |||
| Developer Support | |||
| Ease of Integration | |||
| Performance | |||
| Key Features | |||
| Core Capabilities | Out-of-the-box Wallet Management, Custom Connect Button and Modal, Light and Dark Mode Support | Paymaster & Bundler, Rollup Builder, Web3 Functions SDK, State and Secrets Management | Synapse Bridge, Synapse Router SDK, Bridge Widget |
| Chain Support |  |     +13 |   +9 |
| Best For | DeFi Developers, NFT Platform Developers | Infrastructure Developers, DeFi Developers | Infrastructure Developers, Cross-chain/Bridge Developers |
| Pricing | |||
| Free Tier | Free | Free | Free |
| Paid Features | — | 1 paid tiers | — |
| Custom Plans | — | Enterprise plans | — |
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