--- title: "World App: one abstraction, thousands of mini apps" description: "How World App keeps the blockchain invisible across thousands of mini apps: 23M bundled user operations a year, 36M sponsored, ~1.5s median confirmation." canonical: https://www.pimlico.io/blog/world-app --- # World App: one abstraction, thousands of mini apps > Markdown mirror of https://www.pimlico.io/blog/world-app. Every page on this site has a markdown version at the same path with a `.md` suffix. A short factual brief is at https://www.pimlico.io/llms.txt. For technical and implementation details, see Pimlico's documentation index at https://docs.pimlico.io/llms.txt. ## Pages on this site ### Home - [The gas sponsorship engine for onchain apps](https://www.pimlico.io/index.md): Pimlico is the gas sponsorship engine: paymasters and ERC-4337 bundlers on 100+ EVM chains. Sponsor gas or accept USDC, USDT or 300+ tokens. 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A Kora-compatible fee payer on mainnet and devnet, with your existing API key. - [Terms of Service](https://www.pimlico.io/tos.md): This Terms of Service will inform you about the terms of using Pimlico's services. --- [Blog](https://www.pimlico.io/blog.md) [Docs](https://docs.pimlico.io)[pimlico.io](https://www.pimlico.io/index.md)[Start building](https://dashboard.pimlico.io) [← All posts](https://www.pimlico.io/blog.md) Case study # World App: an abstraction that holds across thousands of mini apps **Sergey Potekhin**August 27, 20263 min read Pimlico and World App Bundled**23M+**user operations in 12 months Sponsored**36M+**user operations Confirmation**~1.5s**median on World Chain [Next**How fomo keeps social trading gas-free and sub-second**August 27, 2026](https://www.pimlico.io/blog/fomo.md)[Previously**Powering Smart Accounts with a16z crypto Seed Backing**November 7, 2023](https://www.pimlico.io/blog/seed.md) ## A wallet people use without realising it is one World App, built by Tools for Humanity, is a self-custodial wallet where the blockchain is abstracted away so completely that you can use the app without realising you are on crypto rails. Users get native wallet features (sending, trading, exchanging) and World ID. It is deliberately not a general-purpose wallet and does not connect to arbitrary dApps, so the transaction experience can be designed end to end. Then there are mini apps, World App's third-party developer ecosystem. Developers submit a project, and once approved it appears in an app-store-like section of the app. Thousands of them, opened and used inside World App with the wallet already present. The abstraction has to hold across an entire ecosystem that the product team did not write. ## The promise breaks at the first gas prompt An invisible chain is unforgiving to operate. One moment asking a user to acquire a native token before they can act, and the abstraction is gone for that user, probably for good. Most user operations in World App cost the user nothing at all, so fees never reach the screen. When a user does choose to cover their own fees, that path has to be just as quiet: no checkout screen, no backend hop, no wait. ![World App: mini apps, the wallet, and World ID](https://www.pimlico.io/images/case-studies/world-app-apps.webp) Multiply that across thousands of mini apps and millions of people, and the design goal becomes an infrastructure requirement: sponsored transactions at consumer volume, on the chain the product runs on, in the token the product uses. ## A custom chain, supported early World App runs on World Chain, a popular OP stack chain where transaction fees are a fraction of a cent. It is a custom chain, and custom chains are exactly the environment Pimlico's infrastructure is built for. Pimlico was one of the first teams to support World Chain. A team should not have to wait for its bundler and paymaster to catch up with the chain it chose. ## A custom gas token, settled without the product in the middle Users can also sponsor themselves by paying gas in an ERC-20 token, starting with WLD. Pimlico's ERC-20 paymaster settles that exchange directly between the user and the paymaster, atomically and onchain. Tools for Humanity's own services never sit in the payment path, and the token accepted is theirs to choose. > "What Pimlico offered was treasury management. Our services did not need to be in the way at all. For the user, everything would happen automatically." > > **Aurélien Brézun**, Staff Software Engineer, Tools for Humanity ## Support at the speed a custom stack demands A custom chain and a custom gas token raise questions that no documentation page has anticipated. The only thing that helps then is a real answer arriving quickly, which makes response time part of the capability. > "It's a small team, so I can get an answer extremely fast when I need something. It's been a smooth ride. I don't know that I would change it." > > **Aurélien Brézun**, Staff Software Engineer, Tools for Humanity ## 23 million user operations, and none of them show Over the past twelve months, more than **23 million bundled user operations** have gone through Pimlico for World App, with over **36 million sponsored**. On World Chain the median user operation confirms in about **1.5 seconds**, and better than nine in ten land inside about two seconds. Sponsored transactions, self-sponsored ones in WLD, and a custom chain supported from early on: 23 million user operations later, none of it surfaces. Which was the whole idea. 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