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
EchoVox
3 years in the making
$19.99 · In-app purchases
PRICE
$19.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.3
130 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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A product spec, screen plans, and build steps for your coding agent.
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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/
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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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for EchoVox: map the core Lifestyle 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
Improve audio processing algorithms to ensure clarity.
Assumption to check: Users report audio quality issues.
Validate with people who use this workflow before building.
Hypothesis 2
Offer a free trial or limited feature set to attract users.
Assumption to check: High price point deters new users.
Validate with people who use this workflow before building.
Hypothesis 3
Implement a cohesive design system for a better user experience.
Assumption to check: Inconsistent user interface design.
Validate with people who use this workflow before building.
Hypothesis 4
Integrate multiple sharing options to increase usability.
Assumption to check: Limited sharing options for audio clips.
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
3 years in the making. Now featuring pro quality reverb, the famous "Hindi" based bank D, upgraded audio engine now recording mono wav 44.1 files, a whole new mode, reversed playback and more. The learning curve for 3.0 is pretty steep for the new user. You can also get help from me and over 1,000 other users worldwide at: www.facebook.com/groups/echovoxusers DEMO VIDEO IS IN PRODUCTION. PLEASE NOTE THIS SOFTWARE IS CPU INTENSIVE AND RUNS BEST ON NEWER DEVICES. ECHOVOX System all-in-one Echo based Real Time EVP recording system from the creator of SpiritVox. EchoVox is a real-time amplified recording system used to create a bed of random chaotic noise using random phonetics, microphone input and a natural loop recording echo. Delay time can be set from anywhere to 0-10 seconds. This means what you are hearing is the actual audio being recorded to disk in real-time, as it happens. Echo has been shown to contribute to EVP (Electronic Voice Phenomenon) Note: The Echo is not a digital effect added to the sound. It is a loop of the actual recording. An external/BlueTooth speaker is recommended for the best results, also the louder the better. FEATURES: ECHO WITHOUT RECORDING 6 CHANNELS OF RANDOM PHONETIC AUDIO 4 SOUND BANKS. STUDIO QUALITY REVERB 44.1 WAV REAL-TIME AUDIO RECORDING NEW "BURST" MODE* NEW AUTO BLEND/AUTO SHUFFLE MULTIPLE DELAY SETTINGS MIC GAIN INPUT CONTROL PLAY,FF,REW,SLOW,SPEED UP,REVERSE AUDIO FILES WITHIN APP FOR REVIEW UPLOAD TO SOUNDCLOUD FILE BROWSER NAME SESSION AT START CUSTOM REVERB PRESETS (.ievrp) CAN BE SAVED AND TRADED. *Random burst of random sounds from random banks for a random amount of time CONTROLS: Each channel has independent playback speed control + on/off. Mic gain controls microphone input volume "Auto Blend" "Shuffle" blends across the 6 random audio channels Echo starts recording to disk. THEORY: This is the result of years of experiments in the field, it is still a work in progress. The echo is actually a chaotic loop of the chopped up vocal samples and environmental sounds. A virtual soup of sound and frequencies impossible to predict. This system has been used and tested WORLDWIDE. On live television in India and South America. Featured on televisions "Ghost Trail" and "Seekers" and more. EchoVox is simply the #1 most trusted and widely used app by both pro's and "armchair" paranormal investigators. Echovox is used by Barry Fitzgerald of TV's Ghost Hunters International and Bill Murphy of TV's Fact or Faked Paranormal files, Chris Flemming of Psychic Kids and Robb Demarest of Ghost Hunters International and other leaders in the paranormal field. EchoVox is NOT just an app, it is not a toy. It is for use by serious investigators and is not for the casual user. The best way to learn more about EchoVox: http://www.youtube.com/user/bigbeardaudio JOIN THE FB GROUP: www.facebook.com/groups/echovoxusers I support my work 100% and want to help you learn to use this correctly and help with any issues. THE BEST METHOD FOR SUPPORT IS TO FOLLOW ME ON TWITTER @spiritvoxapp or at www.facebook.com/groups/echovoxusers
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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.
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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.
