App Overview

Ahti icon

Ahti

Bret Merritt · Productivity

Ahti is somewhere quiet to finish writing your long-form book.

$5.99 · In-app purchases

PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
5.0
1 ratings · Top 5%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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Build Kit

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A product spec, screen plans, and build steps for your coding agent.

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What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Free quick prompt For a smaller starting point

Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Ahti: map the core Productivity workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Include advanced features like tags and recurring tasks.

Assumption to check: Limited task management options compared to competitors.

Validate with people who use this workflow before building.

Hypothesis 2

Implement calendar sync with Google Calendar or Apple Calendar.

Assumption to check: No calendar sync feature.

Validate with people who use this workflow before building.

Hypothesis 3

Allow users to customize themes and layouts.

Assumption to check: Lack of user customization.

Validate with people who use this workflow before building.

Hypothesis 4

Add team collaboration options for shared projects.

Assumption to check: No collaborative features.

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

Ahti is somewhere quiet to finish writing your long-form book. It gives you what you need to plan, draft, and finish a novel, screenplay, or thesis. It's a peaceful, uncluttered interface that stays out of the way so you can focus on writing. PLAN THE SHAPE OF YOUR BOOK Keep your whole story in one place. The binder holds your chapters and scenes. The corkboard turns each scene into a rearrangeable flash card for structuring and quick reference. The outliner gives you a bird's-eye view of your structure and all the data that comes with it. WRITE WITHOUT DISTRACTION Write in a clean editor, or fold a chapters and scenes into one long manuscript so you can write straight through. Additionally, Composition Mode keeps it simple when all you want is the ink and the page. KEEP TRACK, AND FINISH Set a word goal and a daily pace to keep yourself moving. Take a snapshot before a big revision so you can always go back to an earlier draft. When the book is done, compile it to ePub, Word, PDF, and more, with a table of contents, chapter numbering, and your own title page. LOOK THE PART Choose between light and dark mode, or import your own custom themes so your workspace looks and feels like your story. The style editor gives you complete control over every color, font, and formatting of Ahti. YOUR WORK STAYS YOURS An Ahti project is an ordinary folder of plain text files on your own disk. You can open it in Finder or any other writing app, and nothing is trapped in a proprietary format. Turn on iCloud and your books follow you from Mac to iPad to iPhone. There are no sign ins or accounts to create, and unless you choose to sync to iCloud, everything is completely offline. There are robust features when you need them without disrupting your flow: • Wiki-style links between documents • Collections and saved searches • Places for characters and notes • Comments and footnotes • Light and dark themes • Writing targets and history Ahti is built to be calm and quiet, while being rich in functionality when you need it.

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Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Native
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BUILD KIT DIFFICULTY
Intermediate

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.