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.
There are many ways to tune in Forza, but this tuning app gives you consistent, customizable results in minutes.
$5.99 · 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 ForzaTune Pro: map the core Utilities 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 customization options for advanced users
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Occasional bugs with saved tunes not loading
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: High price point for casual users
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of community features for sharing tunes
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.
There are many ways to tune in Forza, but this tuning app gives you consistent, customizable results in minutes. ForzaTune formulas are based on years of expert tuner feedback, yet flexible enough for different upgrades and players. Build an M2 for the track, or a Supra to drift across the streets of Japan. Carve through dirt trails, conquer off-road courses, and more. ForzaTune has you covered. The built-in tune customization means ForzaTune Pro can update the settings to match your preferences. Newer players may want a bit more stability, while more experienced players can create tunes that are on edge. With the pro version you also get an intelligent gearing calculator, the ability to save tunes, and finer control over your tune balance. Here are the complete specs if you'd like to learn more: ONE APP TO TUNE THEM ALL ForzaTune Pro has support for Forza Horizon 6, Forza Motorsport (2023), Forza Horizon 5, Forza Horizon 4, Forza Motorsport 7 and also includes most vehicles in Forza Horizon 3 and Forza Motorsport 6. MAKE RACE, STREET, DRIFT, RALLY TUNES AND MORE This tuning app gives you settings for many different situations. Create standard (road/track), drift, drag, rally/snow, and off-road tunes with ease. LEARN HOW TO QUICKLY FINE-TUNE Adjust the overall balance, turn entry balance, turn exit balance, ride stiffness, and roll stiffness in seconds. RETUNE GEARS WITH EASE Includes a gearing calculator option that lets you match race and drift transmission values to engine swaps or major power upgrades. TUNES ARE TAILORED TO EACH CAR 1540+ vehicles covering Forza Horizon 6, FM '23, and games through Forza Motorsport 6. With free monthly updates for new cars and tracks! ACCURATE FORMULAS ForzaTune Pro builds a model of your car using your input plus its vehicle and track types. This model helps us make original, balanced tunes. Formulas are based on race engineering and adjusted for Forza. Results are also tested extensively with a gamepad and steering wheel/pedal set. SAVE AND MANAGE YOUR TUNES Save, edit, search and back up all of your tunes. Export and import options let you transfer your tunes to new devices or friends easily without logins or accounts. ----- FAQs ----- Q: Is this for beginners or experienced tuners? A: Both. Experienced tuners use it to save time and typically run higher oversteer settings. Newer tuners use it to learn how to tune and make sure the cars are stable after upgrading. Q: How do I use the app? A: Copy several car details from the game into ForzaTune, hit "Calculate" and copy the results into the tuning menu in Forza Motorsport or Forza Horizon. There is also a series of video tutorials on YouTube to get you started. Q: What settings and upgrades do I need? A: You will need racing upgrades like suspension, braking, anti-roll bars, and differential to change the values in the tuning menu. You can also use drift, rally and adjustable stock suspensions when available (like off-road buggies and some trucks in Horizon). You will also have the best results if you disable stability management (STM) and traction control (TCS) for lower class cars. Normal or simulation steering is fine. Q: Why is tuning your cars important? A: Upgrades can change how balance and feel in ways that make it harder to drive. ForzaTune lets you bring it back to a setup you can enjoy. Also, tuning doesn't affect your PI or race restrictions, so you can gain an advantage in races. --- Make your own tunes, faster with ForzaTune Pro.
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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.