x1
AI iPhone app builder that takes an idea to the App Store
About x1
x1 is an AI builder for native iPhone apps. You describe the app you want and it works through the stages a real project goes through: validating the idea, naming it, drawing an icon, producing a product plan, generating screens, then building the remaining features and preparing the result for App Store review. The free tier stops at an interactive preview, which is deliberately not a shippable app; paying is what takes the project through building, QA, edits and launch preparation. The thing that separates it from a general chat assistant that emits code is the delivery pipeline: the product is organised around getting an app actually submitted, and x1 states that every paid plan takes your app all the way to the App Store and lets you keep the code.
The pricing is unusual and worth understanding before you start. There is no monthly plan at all. The paid plan, Starter, is sold either weekly at $29 or yearly at $199, and the two differ in how many build credits you begin with: 1,500 on weekly, 2,500 on yearly, then 500 credits a week on both. Credits are consumed by the AI work after the preview, so the real cost of a project depends on how much building, QA and editing it needs rather than on a flat subscription. x1 says 97 percent of users have enough credits to finish their app, which is a vendor claim with no published method behind it.
You begin by telling x1 what you want to make. It generates an interactive app preview first: idea validation, a name and icon, a product plan, and a set of generated screens you can open and share. This stage costs nothing and needs no credit card, and it is where you decide whether the direction is right.
When you choose to continue, you pick a billing period and the project moves into the build studios. x1 organises the work as Idea, Brand, Design, Build, Publish and Revenue studios, and progresses through them step by step rather than emitting a finished codebase in one pass. Build credits are spent on this phase: building milestones, QA, edits and launch preparation.
At the end it assembles the launch assets an App Store submission needs, including metadata, screenshots and review preparation. If you run out of credits mid-project you can still view the work, but generation pauses until you upgrade or add credits.
- •Prompt to native iPhone app - describe the app and x1 produces a working iOS project rather than a web page wrapped in a shell, taking it from concept through to a store-ready build.
- •Free interactive preview - idea validation, name, icon, product plan and generated screens, with no credit card, so you can judge the output before paying anything.
- •Staged studios - Idea, Brand, Design, Build, Publish and Revenue stages structure the work, which makes the process legible instead of a single opaque generation step.
- •Code ownership - every paid plan lets you keep the generated code, so the project can be refined, extended and maintained outside x1 rather than locking you into the platform.
- •App Store launch assets - metadata, screenshots and review preparation are produced as part of the flow, which is usually the unglamorous part that stalls a solo launch.
- •Credit-based build budget - 1,500 or 2,500 credits to start depending on plan, then 500 a week, with the option to upgrade or buy more when a project needs them.
x1 suits founders and solo builders who have an iPhone app idea and no iOS team, designers who can specify a product but not ship Swift, and people validating a concept who want something real in the App Store rather than a prototype. The code-ownership promise matters most to anyone who expects the app to outlive the tool and be maintained by a developer later.
It is a poor fit for several groups, and the site is reasonably clear about this. It builds iPhone apps only, so Android and cross-platform teams get nothing from it. Anyone who needs predictable costs will dislike credits, because the price of a project is not knowable in advance and there is no monthly plan to smooth it. Experienced iOS engineers working on an existing codebase will find the staged studio flow gets in the way rather than helping. And if you expect the free tier to produce something you can submit, it will not: it stops at a preview by design.
