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
iTHUMP/Toxic+
iTHUMP has two versatile tools for magicians and mentalists in one powerful app updated for iOS18.
$59.99 · In-app purchases
PRICE
$59.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.9
40 ratings · Top 5%
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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included18 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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.
JavaScript is required to complete mailbox verification.
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 iTHUMP/Toxic+: map the core Entertainment workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
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
Implement personalized recommendations based on listening habits.
Assumption to check: Limited song discovery features
Validate with people who use this workflow before building.
Hypothesis 2
Offer more flexible payment plans or free tier.
Assumption to check: High subscription cost
Validate with people who use this workflow before building.
Hypothesis 3
Enable playlist sharing with friends and social media.
Assumption to check: Lack of social sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Add offline downloads for playlists.
Assumption to check: No offline capability
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
iTHUMP has two versatile tools for magicians and mentalists in one powerful app updated for iOS18. iTHUMP is a remote viewing device for TOXIC+ and can also be used as a secret thumper to send vibrations from Apple Watch to iPhone, iPhone to Apple Watch, iPhone to iPhone, iPhone to iPad or iPad to iPhone. Toxic+, is the original and most powerful Magic Calculator. A number forcing tool that mirrors all entry and results to the magician's Apple Watch, iThump interface, Bluetooth earpiece, Bluetooth display or stand alone peeks. You can perform many different types of number forces, book tests as well as lookups from up to 20 custom lists. Multiple Birthdates, Celebrities, Special days, Zodiac and Chinese star signs, Magic Squares, ACAAN and lots of data can be derived from the information being input. I'm sure you will find many uses in your magical and mentalist effects. You can create and import in your own background graphics or screenshots so you can make it can look exactly the way you want it to. The majority of it features can also be used stand alone so don't worry if you don't have an Apple Watch or a second device. ONLY FOR MAGICIANS ****Menus are in English only **** You can customise most outputs to your own language. Internet not required for normal use. When using multiple devices connection is achieved via Bluetooth and/or WiFi. You can use BlueTooth alone and/or connect to the same WiFi network. Apart from being a remote interface for TOXIC+, iThump can be used to send vibrations, playing cards, zenner cards, colours, and short text messages as well as text to speech voice messages. You can create a custom list of frequently used messages or use the keyboard for one off texts. Optional interfaces for Prevision, Cesaral CUPP, UTP & UWP, Bluetooth BLE devices, WikiTest, Earworm, Inject, Flitch, PeekSmith 1, 2, 2B & 3, Oblivious notifier, SCI, Sigaba, Bluetooth remotes, Motherboard, Glyphs and Pitata Time Hacker via In-App Purchase. Included interfaces for Apple Watch, Bluetooth earpieces, The Stranger, Nexus, Diverter, DFB-X, Lumen, Hybrid Watches, David Penn’s Pi and a handy Cryptext and Sigaba converter. Install on as many of your own Apple devices as you like. See our website for full features and instructions. Please Note: TV & YouTube rights are reserved. Please contact support for written permission prior to use. Charges apply.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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
Zustand
react-native-reanimated
axios
expo-linear-gradient
BUILD KIT DIFFICULTY
Advanced
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.
