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.
The fourth and final app in the Advanced Language Therapy series!
$29.99 · 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.
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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 Advanced Writing Therapy: map the core Medical 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 exercise variety for different user needs.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Subscription cost can be high for some users.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: User interface may feel cluttered.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of community or social features.
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.
The fourth and final app in the Advanced Language Therapy series! Advanced Writing Therapy is designed to pick up where Writing Therapy left off by delving deeper into phoneme-grapheme correspondence to strengthen writing skills. Next, you apply those skills to write common words and sentences to dictation, and then you can practice generating your own content. Take your writing skills to the next level! **Try this app for free with Advanced Language Therapy Lite! ** **Get this app as part of the Advanced Language Therapy 4-in-1 value-priced app!** Four activities with built-in therapeutic supports to encourage independent practice for people with aphasia and other writing disorders. 1) Match: Strengthen sound-letter matching by selecting the letters (graphemes) that match the sounds (phonemes) you hear. Work on letter names, consonants, vowels, or blends. **Built-in Support: Use the Keyword picture, audio, and written word cues at the top to help you learn. 2) Spell: Practice spelling common words. The 700 words in this activity come from a list of the most common words in the English language, plus words based on vowel patterns. **Built-in Support: Press the Hint button to see 4 choices. Select the correct spelling, then copy the answer. 3) Type: Practice typing common sentences from 1-8 words in length. These 400+ sentences are ones you might use in an online chat, text message, email, or social media discussion. **Built-in Support: Touch the Hint button to see the sentence to copy. See your errors highlighted. 4) Write: Generate a sentence or paragraph to a writing prompt in functional categories such as taking notes, writing personal information, and making lists. **Built-in Support: The Hint button gives you a word bank. Select words from the word bank to add to your entry. The settings allow you to adjust the difficulty, cues available, and letter case for Match. You can select word length restrictions for the Spell activity, and you can choose to show or hide the scores on-screen for users who rely on the hints. Exercises in the Type and Write activities are organized by levels of difficulty. Other Tactus Therapy Apps to Work on Writing: * Writing Therapy: part of Language Therapy 4-in-1 to spell pictured words * Advanced Comprehension Therapy: use Build to arrange words in a sentence * Advanced Naming Therapy: use Create to makes sentences around a verb * Conversation Therapy: write your answers to all 10 question prompts Looking for something else? Find the right apps for you at tactustherapy.com/find In all Tactus Therapy apps, you’ll get evidence-based activities, thousands of exercises, and an adult-friendly interface designed by a speech-language pathologist. You never have to log in, pay a subscription, or connect to Wi-Fi to use our apps. Try them for FREE by downloading the Lite versions today!
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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.