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.
Based on the proven Montessori learning method, Montessori Crosswords helps kids develop their reading, writing, and spelling skills by building words from a set of 320 word-image-audio-phonics combinations using a ph...
$2.99 · 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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Generating… usually about a minute.
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 Montessori Crosswords for Kids: map the core Education 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 variety of puzzles can lead to boredom.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Some users report bugs with the crossword grid interaction.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchase process can be confusing.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of interactive feedback can make learning less engaging.
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.
Based on the proven Montessori learning method, Montessori Crosswords helps kids develop their reading, writing, and spelling skills by building words from a set of 320 word-image-audio-phonics combinations using a phonics-enabled movable alphabet. • Editor's Choice Award ( 4.8 stars out of 5 ) "It is an extremely powerful early reading experience." - Children's Technology Review • "Best literacy app in my opinion" - Sue, National Board Certified Teacher • Featured by Apple in "Apps for Learning to Read" & "Apps for Learning to Write" • Commonsensemedia.org - “Montessori Crosswords is a great way for kids to develop literacy in an engaging way that feels like play." • More than 280,000 units sold! • Used in schools to learn phonics and spelling (65,000 units sold to schools) ____ Montessori Crosswords helps kids learn and understand two fundamental concepts: • First, the app helps kids understand that words are made up of sounds or phonemes (phonemic awareness). For each word, your kids can touch the empty rectangles where letters must be dragged to complete the word, and hear the sound the corresponding letter produces. • Secondly, the app helps kids memorize the phonics associated with letters by providing a phonics-enabled alphabet where kids can touch each letter and hear the associated phonic. ____ Montessori Crosswords allows you to select words according to their difficulty or sound categories: • Level 1 displays a three-letter word with no difficulty for beginning readers (CVC words) • Levels 2, 3 & 4 offer more complex words that contain more complex phonics (as long vowels sounds or blends), and also offer the option to automatically create multi-word crosswords in tens of thousands of different combinations • Alternately, you can choose from 44 sound categories (i.e. choose words that contain a specific sound (for example, long a, “k” sound, and so on). • You can also create custom word lists based on letter clusters __ To create an enjoyable experience, the app also includes sounds, animations, and interactive visual effects that are displayed after a word is completed. __ More Features: • Digraph Support : "oo", "th",... are displayed as a whole unit • R-Controlled vowels support ("car","horn",...) • Capital, lower-case, or cursive letter display • Setting to show only letters are in the word to spell (great for beginners!) • Setting to force spelling from left to right __ Users & Reports • Create any number of users • Check and export activity for each user in the Reports section __ Common Core State Standard (CCSS): CCSS.ELA-Literacy.RF.K.1b Recognize that spoken words are represented in written language by specific sequences of letters. CCSS.ELA-Literacy.RF.K.2 & CCSS.ELA-Literacy.RF.1.2 Demonstrate understanding of spoken words, syllables, and sounds (phonemes). CCSS.ELA-Literacy.RF.K.3 Know and apply grade-level phonics and word analysis skills in decoding words. __ More reviews: • Wired's GeekDad - "5 Favorite Apps for Elementary School iPads" - "An excellent tool for learning spelling and early literacy (...) It can build from simple to more complex words making it usable by students from prep through to grade 3 or 4" • Teachers' Reviews: -Sue on Iear.org - "I just have to say I love Montessori Crosswords both as a parent (to 2, 7, and 8 year olds) and K teacher. I like that the app is appropriate for the developmental levels of my students and all three of my kids" -Cindy - "This is one of my favorite educational apps. I highly recommend it for the children who are learning to read and spell. The kids also love the interactive artwork." __ Email questions or suggestions to [email protected].
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.