App Overview

Simpletext icon

Simpletext

Yeow Jin Gan · Productivity

The Simplest Writing App for Mac, iPad and iPhone

$14.99 · In-app purchases

PRICE
$14.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.1
23 ratings · Top 30%

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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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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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 Simpletext: 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

Allow users to add tags or categories to notes.

Assumption to check: Limited customization options for notes

Validate with people who use this workflow before building.

Hypothesis 2

Implement cloud sync for notes.

Assumption to check: No syncing across devices

Validate with people who use this workflow before building.

Hypothesis 3

Add reminders and notifications for notes.

Assumption to check: Lack of reminder features

Validate with people who use this workflow before building.

Hypothesis 4

Enable note sharing with other users.

Assumption to check: No collaboration 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

The Simplest Writing App for Mac, iPad and iPhone There are many writing apps for you to choose from today, so why bother with yet another one? Because Simpletext is simpler. Its single-minded commitment to simplicity means you’ll get a no-frills writing app that works well and looks great, forever. Simpletext started as a passion project because I couldn’t find what I was looking for. Most apps were trying to do too much and ended up bloated with features I never needed. So I built Simpletext based on a simple premise — what if there’s an app that refuses to do more, choosing instead to do just one thing, and do it well? For Simpletext, that one thing is writing. Why Simpletext? Most people would say Simpletext is lacking in features, and they’re right. In fact, Simpletext began the opposite way — by listing down everything I didn’t want in a writing app. The goal is to create a dumbed-down writing app that inspires you to do nothing else but write. In order to achieve this, I designed Simpletext around four cornerstone principles: 1. Zero Clutter Simpletext is unobtrusive. It provides a blank canvas to write with absolutely nothing to distract you from writing. There’s no visual clutter — the intent is to create a quiet space that helps you connect with your voice, get into the flow, and simply write. With zero clutter, Simpletext lets your words take centre stage. 2. Beautiful Typography Simpletext comes with three professional fonts for you to choose from, handpicked to provide the finest writing experience. They are: (1) Akkurat Mono by Lineto (Monospaced); (2) Graphik by Commercial Type (Sans Serif); and (3) Tiempos Text by Klim Type Foundry (Serif). And if you have a personal favourite font, you can use it in Simpletext too. 3. Plain Text Only Simpletext supports only plain text, which is fast, lightweight and platform-independent. It will never have formatting options, so your files will never be filled with unnecessary attributes. Plain text also ensures your files are always accessible on any device, now and in the future. 4. Fully Native Simpletext is a fully native app developed in Swift and runs natively on Apple silicon. It uses only Apple’s framework and UI components, just as they were intended to be used without any custom workarounds. This approach results in less code, less bugs and better overall performance. Here's What Others Have to Say “I just wanted to thank you for developing Simpletext. It’s perfect. I’ve enjoyed its simplicity and smoothness for quite some time, but now that I can use my favourite font in it (Sina Nova, free on Fontspring) it has truly become not just the best app to write in, but my favourite app period. Thank you for creating and maintaining it.” - Bart “This app does everything it says on the tin. It is not meant to do a lot, but what it does it does very well. It is well designed and suits well those who want to focus on writing and avoid dealing with formatting, proprietary file types and hidden saving locations. It produces and edits .txt files, which will probably be around for as long as there are computers, and saves them in plain sight. Five stars.” - Fernando “I’ve tried all sorts of writing apps but Simpletext is definitely the best of all. So grateful for your dedication and those productivity tips in the blog post are so good. Simpletext is such a joy to use.” - LWL Art Studio “A writing app that is as simple as stated, beautiful to write with and opens and closes wherever you want. Simple tweaks are easily accessible, if required, and only add to the minimalistic perfection. Good job.” - Tuntle Get Back to Basics In a world full of feature-rich, subscription-based apps, I wanted to create something that goes back to basics. Simpletext is intentionally simple, yet it has everything you need. It’s an app I use every single day. I hope you will too. Best wishes, Yeow Jin P.S. Simpletext comes with a promise — find out more at simpletext.app/promise

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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
Expo
Zustand
React Navigation
@react-native-async-storage/async-storage
react-native-color-picker
BUILD KIT DIFFICULTY
Starter

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.