App Overview

Blackie icon

Blackie

Brutality Arts · Photo & Video

The perfect app for the Black & White photography.

$3.99 · In-app purchases

PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
3.1
44 ratings · Below Average

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 included16 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 Blackie: map the core Photo & Video 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

Offer unique filters and customizable options.

Assumption to check: Limited filter options compared to competitors

Validate with people who use this workflow before building.

Hypothesis 2

Optimize for better performance across all devices.

Assumption to check: Inconsistent performance on older devices

Validate with people who use this workflow before building.

Hypothesis 3

Implement batch editing to enhance user efficiency.

Assumption to check: Lack of batch editing features

Validate with people who use this workflow before building.

Hypothesis 4

Prioritize bug fixes and user feedback for improvements.

Assumption to check: Low user rating due to bugs

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 perfect app for the Black & White photography. It doesn't matter if you've just started or you are a professional. The Blackie has something for everyone. Its minimal design and easy use with many features will make it your go-to app when you're in the mood for the Black & White. It will help you explore all the possibilities of the Black & White photography and achieve the best result. • Fast. Blackie opens in camera mode, so you can instantly capture moments around you and give them vintage feeling. • What you see is what you get. All effects are previewed in Real-time. • Shuffle your best. The smart shuffle works exceptionally. You only need to shuffle a couple of times and snap the best one. • Customize. If you have time, you can manage every effect in your photo with Mods by yourself. • Simple Minimal Design. The way that Blackie works is unique. The experience is clear and fast. No need for unnecessary buttons. • Just save it! Captured photo goes instantly to your photos library. It is up to you when you are ready to share it with the world. • No in-app purchases and no ads. Nothing to bother you while making memories. • Settings Save Original Photo On / Off. Save Photos with Compression (JPEG) On / (TIFF) Off. Modify UI to Lighting Conditions. (Black or White design). • Camera Manual Controls Manual Focus with Focus Peaking. Lenses. Manual Exposure. Shutter Speed and ISO. Manual White Balance. EV. • Grids 9x Grid Types with custom Opacity. Center Lines On / Off. Grid Color Black / White. • Presets 8x Slots for custom Presets. • Mods Crop and Rotate. Films. 5x Scanned Analog Films. 3x Digitally Created. Brightness. Contrast. Color Filters. 6x Types Red, Orange, Yellow, Green, Blue and Infra. Vignette Overlay. 5x Types with rotations and inverted light. Fade. Low, Mid, High mods. Shadows. Highlights. Sharp. 2x Types Clarity and Bloom. Grain. Frame. Black & White frame with custom size. • Post processing Before / After function. Tags: #blackieapp #blackie Note: iPhone 3GS, iPhone 4/4S, iPod 4th generation, iPad2, iPad Mini 1st generation, iPad3 is Missing Sharp and Grain Mods. All iPads preview and capture is in Square Mode only.

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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.

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BUILD KIT DIFFICULTY
Advanced

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.