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
TechApp for Toyota
The application contains technical information that will help you in the repair and maintenance of your car.
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 1.0
5 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 included17 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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for TechApp for Toyota: map the core Reference 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
Provide more detailed specs and user manuals.
Assumption to check: Limited vehicle information compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement a more intuitive design with clearer navigation.
Assumption to check: Poor user interface and navigation
Validate with people who use this workflow before building.
Hypothesis 3
Focus on app stability and performance optimization.
Assumption to check: Inconsistent performance and crashes
Validate with people who use this workflow before building.
Hypothesis 4
Enable offline access to downloaded manuals for convenience.
Assumption to check: No offline access to manuals
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 application contains technical information that will help you in the repair and maintenance of your car. Data is divided into categories: general information, chassis, tightening torques of bolts and nuts, fuel system, brake system, lighting lamps, a replacement intervals and volumes of technical fluids. Technical data of repair, adjustments, volumes of fluids, service intervals, etc. - comply with the recommendations of the automaker and can’t be the same with your personal opinion, so it’s only for informational purposes. For work needed Internet access. Consumption traffic is little. After first loading the information that interests you data is cached, allowing you to view after it offline. Information is available for the following models: 4 RUNNER (KZN18_, VZN18_, RZN18_) AURIS TOURING SPORTS (ADE18_, ZWE18_, ZRE18_) AURIS VAN Box (NDE18_, ZRE18_, NZE18_) AVENSIS (_T22_) AVENSIS (T25_) AVENSIS Estate (T25) AVENSIS Estate (ZRT27, ADT27) AVENSIS Liftback (_T22_) AVENSIS Saloon (T25) AVENSIS Saloon (ZRT27, ADT27) AVENSIS Station Wagon (_T22_) AXIO/ALTIS Saloon (_E12J_, _E12T_) AYGO (PAB4_, KGB4_) AYGO (WNB1_, KGB1_) CAMRY Liftback (_V1_) CAMRY Saloon (_CV1_, _XV1_, _V1_) CAMRY Saloon (_CV2_, _XV2_) CAMRY Saloon (_V1_) CAMRY Saloon (_V2_) CAMRY Saloon (_XV4_) CAMRY Saloon (MCV3_, ACV3_, _XV3_) CAMRY Station Wagon (_V2_) CAMRY Station Wagon (_XV1_, _CV1_, _V10) CARINA E Hatchback (_T19_) CARINA E Saloon (_T19_) CARINA E Sportswagon (_T19_) CARINA II Hatchback (_T17_) CARINA II Station Wagon (_T17_) CARINA Mk II Saloon (_T17_) CARINA Saloon (TA4L, TA6_L) CARINA Station Wagon (TA4K, TA6K) CELICA (ST20_, AT20_) CELICA (ZZT23_) CELICA Convertible (ST16_, AT16_, AT18_, ST18_, AT20_, ST20_) CELICA Coupe (_A6_, ST16_, AT16_, AT18_, ST18_) CELICA Saloon (AT16_, ST16_) CELICA SUPRA (_A6_) COROLLA ALTIS Saloon (NRE18_, ZRE17_, ZRE18_, NDE18_) COROLLA (CDE12_, ZZE12_, NDE12_, ZDE12_) COROLLA (NRE15_, ZZE15_, ADE15_, ZRE15_, NDE15_) COROLLA (ZWE18_, NZE18_, ZRE18_) COROLLA Estate (_E12J_, _E12T_) COROLLA FX Hatchback (E8B) COROLLA Hatchback (_E9_, _E11_) COROLLA Liftback (_E8_, _E9_, _E10_, _E11_) COROLLA Saloon (_E7_, _E8_, _E9_, _E10_, _E11_, E15_) COROLLA SECCA Hatchback (_E10_, AE102) COROLLA Station Wagon (_E7_, _E9_) COROLLA Verso (ZDE12_, CDE12_, ZER_, ZZE12_, R1_) COROLLA Wagon (_E10_, __E11_) CYNOS Coupe (EL54) ESTIMA (MCR3_, ACR3_, CLR3_) ESTIMA (TCR2_, TCR1_) GT 86 Coupe (ZN6_) HIACE II Box (LH5_, YH7_, LH7_, LH6_, YH6_, YH5_) HIACE II Wagon (LH7_, LH5_, LH6_, YH7_, YH6_, YH5_) HIACE III Box (YH7_, LH6_, LH7_, LH5_, YH5_, YH6_) HIACE IV Bus (LH1_) HIACE SBV IV Box (LXH1_, RZH1_, LH1_) HILUX (VIGO) III Pickup (KUN_, TGN_, LAN_, GGN_) HILUX SURF (RN10_, VZN13_, VZN10_, RN13_) HILUX SURF (RN5_, LN5_, VZN6_, RN7_, RN6_) IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_) LAND CRUISER (PZJ7_, KZJ7_, HZJ7_, BJ7_, LJ7_, RJ7) LAND CRUISER (_J6_) LAND CRUISER 200 (VDJ2_, UZJ2_) LAND CRUISER 80 (_J8_) LAND CRUISER CYGNUS (FZJ1_, UZJ1_) LAND CRUISER Hardtop (_J7_) LC PRADO (_J9_) LC PRADO (KDJ15_, GRJ15_) LC PRADO (LJ12_, KZJ12_, TRJ12_, KDJ12_, GRJ12_) LITEACE Box (_R2__V) LITEACE Box (CM3_V, KM3_V) LITEACE Bus (_R2_LG) LITEACE Bus (CM30_G, KM30_G) MODELL F Bus (_R2_, 31) MR 2 I (AW1_) MR 2 II (SW2_) MR 2 III (ZZW3_) PASEO Convertible (EL54) PICNIC (_XM10) PRIUS (ZVW3_) PRIUS ALPHA (ZVW4_) PRIUS C (NHP10_) PRIUS Hatchback (NHW20_) PRIUS Saloon (NHW11_) PROACE Box Body / Estate QUANTUM III Bus (LH1_, RZH1_) QUANTUM V Box (TRH2_, KDH2_) RAV 4 (SXA1_) RAV 4 I Cabrio (SXA1_) RAV 4 III (ACA3_, ACE_, ALA3_, GSA3_, ZSA3_) RAV 4 IV (WWA4_, AVA4_, ZSA4_, ALA4_) RAV 4 Mk II (CLA2_, XA2_, ZCA2_, ACA2_) STARLET (_P7_) STARLET (_P8_) STARLET (EP91) SUPRA (JZA70_,GA70_, MA70) SUPRA (JZA80) T18 Hatchback (_E7_, T18) TACOMA II Pickup (LN8_, RN5_, LN6_, YN6_, YN5_, LN5_, RN6_) URBAN CRUISER (NSP1_, NLP1_, ZSP1_, NCP11_) VERSO (_AUR2_, _ZGR2_) VERSO S (NLP12_, NCP12_, NSP12_) VERSO SPORTVAN (_CLM2_, _ACM2_) YARIS VERSO (_NLP2_, _NCP2_) YARIS/VITZ (_P13_, P1_, P9_)
Written user reviews are not shown here. Check current App Store reviews >
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
Expo
Supabase
Zustand
React Navigation
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.
