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toPrompt

toPrompt helps you turn an idea into a working application using AI. When you’re ready to launch, NineHertz engineers can help with integrations, security hardening, deployment and ongoing development.

toPrompt is a solution from The NineHertz, an AI-native engineering partner

  • 1,300+ projects since 2013
  • 4.8/5 on Clutch
  • 15+ countries served

What Is toPrompt?

toPrompt is an AI app builder from The NineHertz that turns plain-language prompts into working web and native mobile applications, then puts real engineers behind them. Write the prompt yourself or have a toPrompt prompt engineer write it, build from a ready-made design library, and get a working prototype in 5–10 days. When the app needs integrations, security hardening or scale, the same NineHertz team takes it to production and supports it after launch. One team from prompt to post-launch. No separate dev team to hire.

It is built for solopreneurs testing an idea, startups racing to an investor-ready MVP, small businesses that need custom software without an agency budget, and enterprises that want internal tools without adding headcount. You own 100% of the code. Download it, host it, extend it.

From the first prompt to the next stage of development, you have a path to keep building.

We don’t compete with vibe coding. We complete it.

Business Challenges

The gap between an idea and a working application is rarely the code alone. It is the specs, tickets, handoffs and rework that sit in between, spread across tools and teams.

AI Investment Without Returns

Businesses are investing heavily in AI experimentation, yet many struggle to turn promising proofs of concept into production-ready applications that deliver measurable business value.

Development Costs That Limit Innovation

Traditional application development requires significant investment in engineering talent, infrastructure, and delivery. This forces businesses to prioritize a handful of initiatives while other valuable ideas remain on the backlog.

Engineering Bottlenecks That Slow Growth

Engineering teams are stretched across new development, maintenance, bug fixes, and technical debt, leaving limited capacity to experiment, innovate, and respond to changing business needs.

The Prototype-to-Production Gap

AI can accelerate application creation, but integration, security, testing, performance, and deployment remain critical hurdles between an impressive prototype and a production-ready solution.

41%of generative AI prototypes reach production.
$1.3Maverage cumulative spend on AI initiatives reported by organizations in enterprise AI adoption research.
5+ hrs/weekthe time 58% of surveyed developers reported losing to unproductive work.
42%of companies reported abandoning most of their AI initiatives before reaching production.

toPrompt Features & Capabilities

What the toPrompt builder does, and where NineHertz engineering takes over.

Prompt-to-App Generation

Describe what you want in natural language. toPrompt turns your requirements into an initial application you can review, test, and refine as your idea evolves.

Web and Mobile Applications

Build web apps and, on eligible plans, native iOS and Android apps. NineHertz engineers can support testing and submission to the App Store and Google Play.

Templates and Design Inputs

Start from ready-made templates for landing pages, dashboards, and client portals, or import Figma designs to shape the app’s visual structure.

Code Access & Customisation

Access your application’s source code to customise, extend, and continue development outside toPrompt. Code ownership is subject to the platform’s terms.

Security and Technical Documentation

Eligible plans include security scanning, monitoring, architecture diagrams, and technical docs. Further testing and compliance needs are assessed against production requirements.

Application Publishing & Deployment

Publish applications beyond local prototypes. NineHertz can support deployment planning, environment configuration, and launch readiness.

Integrations & Business Connectivity

Connect apps to external services through APIs. NineHertz can build custom integrations with your existing business systems and workflows.

Engineering Support from NineHertz

NineHertz engineers add custom functionality, system integrations, code review, deployment, and ongoing development to take your app from working to production-ready.

How Does toPrompt Work?

Bring an idea, a design or code built in another tool. toPrompt generates the app in days. When it’s time to go live, NineHertz engineers partner in to harden, launch and scale it.

* Included on paid build plans. Integrations, load testing, compliance and hypercare are delivered by NineHertz engineers through Prompt & Partner engagements.

  1. 1

    You

    Prompt

    Describe the app, pick a template or let a prompt engineer write it. Already built it elsewhere? Bring the code.

  2. 2

    toPrompt

    Build

    AI generates screens, data model and APIs, then runs a security scan. Engineers extend it where AI stops.

  3. 3

    NineHertz partner

    Launch

    Hardening, integrations, load testing, deployment and monitoring, with store release for mobile apps.

  4. 4

    NineHertz, ongoing

    Scale

    Infrastructure scaling, performance tuning, new features and business-outcome tracking as you grow.

Build it Yourself, or Partner with NineHertz

Two ways to use toPrompt. Switch from one to the other at any point, and keep the same code.

Prompt & Build · Self-serve

You build. toPrompt does the heavy lifting.

For creators, founders and teams who want to prototype and iterate on their own.

  • Landing pages, full web apps and native mobile apps
  • AI security scan, architecture docs and code download
  • Upgrade to a partner engagement whenever you’re ready to launch

Flexible plans are available based on your usage, from a free plan to get started to paid plans for professionals and teams.

Prompt & Partner · With NineHertzWhere NineHertz comes in

NineHertz engineers take it to production with you.

Fixed-quote engagements for a new idea, a toPrompt prototype or an app built in another tool that isn’t ready to launch.

  • App readiness check and production-readiness report
  • Security hardening, integrations, enterprise SSO and load testing
  • App Store and Play Store release, warranty and post-launch hypercare

Engagements are scoped and quoted to your application, its integrations, complexity and delivery timeline. Talk to us for a fixed quote.

Business Outcomes That Matter

What changes when ideas move to production faster.

  • Accelerate Time to Market

    Move from an idea to a working application faster, shortening the journey from concept to execution.

  • Reduce the Cost of Experimentation

    Validate ideas and build functional prototypes without committing to the cost and complexity of traditional development upfront.

  • Unlock Business-Led Innovation

    Empower teams to translate business needs into applications using natural-language prompts, reducing dependence on lengthy development cycles.

  • Bridge the Gap Between Prototype and Production

    Go beyond AI-generated code with NineHertz architects reviewing, refining, and helping take applications live in as little as a week, depending on scope and complexity.

  • Scale Innovation with Greater Agility

    Iterate, adapt, and improve applications as business requirements evolve, without restarting the development process from scratch.

  • How we measure it

    Your baseline, your targets

    Every app, team and market is different, so we don’t promise generic percentages. Tell us where you are today, and we’ll agree on measurable goals for time to launch, build cost and post-launch stability.

See toPrompt in Action

Watch one prompt become a working app, then follow it from first build to live launch.

What you’ll see

  1. 01Writing a prompt, or getting one from a prompt engineer
  2. 02Picking a starting point from the design library
  3. 03toPrompt generating web and mobile screens
  4. 04Running the AI security scan and editing code
  5. 05Handing over to NineHertz engineers for launch
Start With an Idea.
Build Toward Production.

Use toPrompt to explore your idea and create an initial application. When you’re ready to go further, NineHertz can help you plan the engineering work needed to integrate, test, deploy and evolve your application.

toPrompt FAQs

Answers to the questions founders and product teams ask before they start building.

toPrompt is an AI-powered application builder from The NineHertz. It helps turn plain-language instructions into an initial application. When additional engineering is needed, NineHertz can help assess the application and scope the work required for integrations, testing, deployment and ongoing development.

No. You describe what you want in plain language, and toPrompt generates the initial application. Developers who want more control can use the code editing capabilities and download the source code.

You can build landing pages, web applications and mobile applications. Typical examples include booking and membership platforms, community apps, online stores, client portals, dashboards and internal business tools.

toPrompt combines AI-assisted application development with access to NineHertz engineering services. You can start by building an application yourself and engage engineers when you need additional technical expertise. Depending on your requirements, this can include integrations, security improvements, testing, deployment and ongoing support.

Yes, NineHertz can assess applications built with other AI tools, subject to access, technical feasibility and the agreed scope. The assessment can identify areas that may require code changes, security improvements, integrations, testing or deployment work. The proposed approach, cost and timeline depend on the application’s current state and requirements.

toPrompt offers self-service plans and engineer-assisted engagements. The self-service option provides access to the product according to the selected plan, while Prompt & Partner engagements cover additional engineering work based on an agreed scope.

Self-service plans currently start at $0 (Free), $7 for 7 days (Starter) and $29 a month (Pro); see the current pricing on toprompt.ai. Engineer-assisted projects are scoped according to the application, required integrations, technical complexity and delivery requirements.

Under toPrompt’s terms, you own your projects and source code, and you can download the code to use outside toPrompt. For engineer-assisted projects, ownership and handover are also set out in the project agreement.

Enterprise readiness depends on the application’s architecture, data, integrations and security requirements. toPrompt provides the capabilities included in the selected plan, while NineHertz can help assess additional requirements and scope appropriate engineering work. Depending on the project, this may include authentication, access controls, security testing, monitoring and deployment controls. Enterprise security and compliance requirements are confirmed during project scoping.

Applications may require integrations with systems such as CRMs, ERPs, payment services, analytics platforms and identity providers. NineHertz can assess these requirements and scope the integration work based on the systems involved, available interfaces, data flows and security considerations. The supported integrations and delivery scope depend on the application and the agreed engagement.

Start by exploring the toPrompt builder and creating an initial application. If you already have an application that needs additional engineering work, or you know that your project requires integrations, testing or deployment support, contact NineHertz to discuss the requirements and next steps.

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