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.
App Overview
Nerd Fonts Installer
READ BEFORE PURCHASE: Installed fonts are available in apps that support Apple’s user-installed font system
$2.99
PRICE
$2.99
No 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 included15 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.
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
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Nerd Fonts Installer: map the core Developer Tools 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
Add advanced sorting and filtering options for fonts
Assumption to check: Limited font management features
Validate with people who use this workflow before building.
Hypothesis 2
Implement a preview feature for installed fonts
Assumption to check: No preview of installed fonts
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to create collections of favorite fonts
Assumption to check: Lack of user customization
Validate with people who use this workflow before building.
Hypothesis 4
Integrate a help section with FAQs and tutorials
Assumption to check: Inadequate help/support options
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
READ BEFORE PURCHASE: Installed fonts are available in apps that support Apple’s user-installed font system. Apps that provide only their own built-in font list may not display them. Ligatures depend on each app’s text-rendering settings and cannot be forced if the app does not support or enable them. Nerd Fonts Installer includes 18 Nerd Font families and 118 bundled faces. All font files, catalog data, metadata, and licenses are included with the app; no font downloads or account are required. AVAILABLE FONTS • 0xProto Nerd Font • AnnotationM Nerd Font • AtkynsonMono Nerd Font (based on Atkinson Hyperlegible Mono) • ComicShannsMono Nerd Font • DroidSansM Nerd Font • FiraCode Nerd Font • GoMono Nerd Font • Hack Nerd Font • Inconsolata LGC Nerd Font • Inconsolata Nerd Font • InconsolataGo Nerd Font • JetBrains Mono Nerd Font • MesloLGM Nerd Font • OpenDyslexic Nerd Font • Terminess Nerd Font • Ubuntu Nerd Font • UbuntuSansMono Nerd Font • VictorMono Nerd Font AtkynsonMono and OpenDyslexic provide accessibility- and readability-oriented options alongside coding and monospace designs. FEATURES • Search the complete bundled font catalog • Preview each actual bundled font with editable specimen text • Switch among every supplied face and preview sizes from 5–42 pt • Install every supplied face in a family together through the iOS Fonts system • See installation status and remove one family or all fonts installed by the app • Browse Unicode characters, Private Use Area icons, encoded and unencoded glyphs, alternates, and ligatures • Search character and glyph maps by character, code point, Unicode name, glyph ID, name, or kind • Inspect Unicode details, glyph mappings, icon sources, categories, and metrics • Copy characters and mapped glyph text • Inspect embedded names, traits, language coverage, OpenType features, variation axes, font tables, file details, counts, and checksums • Read copyright, attribution, incorporated-work notices, and complete bundled license text • Open a prefilled support email containing the app version, device model, and OS version • Native iPhone and iPad interface designed for iOS 26. Core browsing, previews, metadata, licenses, installation, and removal work from bundled resources without a network connection. Here is a non-exhaustive list of apps that user-installed fonts should work with: Code App, a-Shell, Pyto, Blink Shell, Prompt 3, Drafts, Adobe Apps, Tot, Goodnotes, Notability, Pages, Keynote, Numbers, Procreate, Adobe Photoshop, Adobe Premiere, Final Cut Pro, OmniGraffle, Noteful, IceCubes, Aidoku, Moblin, Provenance, Typography Insight, Accordance, iDesign, Clip Studio Paint, Ulysses, Noto, HashPhotos. If an app works with your Adobe Creative Cloud user-installed fonts on iOS, it should work with these (same underlying mechanism) I can verify Textastic and Obsidian do not support user-installed fonts. Textastic documentation clarifies that it's only fonts installed through a profile. Obsidian change log says it does, but no user-installed fonts were in the list of available fonts.
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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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Zustand
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expo-router
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.
