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.
BlindSquare is pioneering accessible navigation both indoors and outdoors
$39.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for BlindSquare: map the core Navigation workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Assumption to check: Limited support for users with diverse visual impairments
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Requires constant internet connection for maps
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: High initial purchase cost
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: User interface can be overwhelming for new users
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
BlindSquare is pioneering accessible navigation both indoors and outdoors. Know where you are, know where you're going, travel with confidence. BlindSquare is a new solution that combines the latest technology to help the blind with their daily lives. It has been developed in collaboration with blind people and carefully field tested. You need either an iPhone or an iPad to get started. It also supports some additional accessories to enhance the experience. How does it work? BlindSquare uses GPS and the compass to locate you. It then gathers information about the surrounding environment from FourSquare. BlindSquare has some unique algorithms to decide what information is the most relevant and then speaks it to you with high quality speech synthesis. “What's the most popular café within 200 meters radius? Where is the post office or the library?” You can control BlindSquare also through voice commands. The Voice Command feature is a premium service requiring purchase of credits for continuous use. Voice Command Credits are available as an in-app purchase on the App Store. Using BlindSquare as a GPS solution: When you start the app, it will start telling you the interesting places and street crossings around you. By changing the radius, you can limit the area you are interested in. You can also search by search term or by category. You can select an interesting place from the search results and perform the following tasks: 1) Get contact info (address, phone number) 2) Open twitter feed or restaurant menu (if provided) 3) Make a phone call 4) Start tracking the place (BlindSquare will assist you by repeating the distance and the clock face direction) 5) Start your favourite navigator for turn-by-turn instructions (TomTom, Navigon or Apple Maps) BlindSquare is aware of when you travel by car, bus or train and starts to report interesting places in front of you (for example, the next stops) and street crossings when you are passing them. You can also save your own private places to iCloud so they will be found with your every device. Using BlindSquare as a Foursquare client: If you like to play Foursquare, you can do the following with BlindSquare: 1) Get a list of nearby FourSquare venues 2) When you are in a place, you can check in by shaking your device 3) Do a check in with commenting and twitter/facebook sharing 4) Correct the location of the place BlindSquare supports the following languages: English, Arabic, Bulgarian, Croatian, Czech, Danish, Dutch, Estonian, Finnish, French, German, Greek, Hebrew, Hungarian, Italian, Japanese, Korean (South Korea), Norwegian, Polish, Portugues, Romanian, Russian, Spanish, Swedish and Turkish. VoiceOver usage is supported but it also includes higher quality additional speech synthesis by Acapela Text-To-Speech from Acapela Group. Instructions in English: https://www.blindsquare.com/user-guide/ and https://www.blindsquare.com/faq/ Please note: This app retrieves data in real time from Foursquare and Open Street Map. Use of a flat rate data plan is highly recommended. Continued use of GPS running in the background can dramatically decrease battery life. Having only been released in May 2012, BlindSquare has already received several prizes and awards: - GSMA: Global Mobile Awards 2013, Best Mobile Health Product or Service - Apps4Finland 2012 - OpenCities App Challenge 2012 - The Finnish Information Processing Association: Best Product 2012 Please note: To use BlindSquare, your iCloud account has to be active so BlindSquare can access it to save your settings and places. Continued use of GPS running in the background can dramatically decrease battery life.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.