App Overview

Instant Fitness: Workout Trainer icon

Instant Fitness: Workout Trainer

Azumio Inc. · Health & Fitness

Features ab workouts recommended by Kendall Jenner!! Get her toned abs now!

$4.99 · In-app purchases

PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.2
111 ratings · Top 30%

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.

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.

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

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Instant Fitness: Workout Trainer: map the core Health & Fitness 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 a wider range of workouts and customizable routines.

Assumption to check: Limited workout variety and customization options

Validate with people who use this workflow before building.

Hypothesis 2

Optimize app performance for better speed and responsiveness.

Assumption to check: Slow app performance on older devices

Validate with people who use this workflow before building.

Hypothesis 3

Integrate a more extensive food database for better nutrition tracking.

Assumption to check: Basic nutrition tracking lacks comprehensive food database

Validate with people who use this workflow before building.

Hypothesis 4

Include social features like challenges and leaderboards to enhance engagement.

Assumption to check: Lack of social features for community interaction

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

Features ab workouts recommended by Kendall Jenner!! Get her toned abs now! The world is your gym, work out anytime, anywhere with Instant Fitness! From the creators of Fitness Buddy: the top weight-training and fitness application in the world - Featured on ESPN and Details Magazine - Selected by Gizmodo as one of the best iPhone apps ever. - Highly rated by Lifehacker as the most comprehensive fitness database - And praised by many other reputable publications. Take charge and unleash the real you. Working out has never been this easy and convenient at home or on the go. Simply press play and achieve the summer-ready body you have always wanted without leaving the comfort of your home. For the busy traveler, resume your fitness regimen at your hotel without skipping a beat. Instant Fitness is the groundbreaking solution to bringing personal training into your home and hotel room. It has become the go-to application to working out without going to the gym and without equipment. There’s no longer the need to devote your precious time to planning your workouts. Tell Instant Fitness which workout you want to do and it will lead you through our curated workouts with voice cues and step-by-step animations. MAJOR FEATURES Tons of Unique Exercises - Comprehensive exercises for bodyweight only, dumbbells and resistance bands - Exercise photos, videos and animations (retina display resolution) - Detailed exercise instructions and muscle categorizations - Favorite your exercises 120+ Curated Workout Circuits - Carefully tailored workouts that can be done at home - Quick workouts that fits perfectly into your busy schedule - Comprehensive workout database that caters to your fitness goals - Winter sports workouts (ice hockey, snowboarding, skiing, ice skating, speed skating) - Cardiovascular sports workouts (cycling, running) - Routines specific to you and your equipment (bodyweight only, dumbbell, resistance bands, etc.) User-friendly Interface - Automatic workout logging (no need to manually log your data ever again!) - See your finished workouts in your timeline or calendar - Find your favorite exercises with the search bar Excellent Support - Quick email responses - Frequent updates Upgrade to Premium for unlimited access to Premium Programs and Playpen Freeplay workouts, HD videos, dynamic and motivational audio, workout email summaries with tips and advice on healthy living, priority support, and more for $4.99/month or $29.99/year through renewable iTunes subscription. We offer auto-renewable subscriptions with the following specifications: - Subscriptions are for a 1 month or 12 month duration - Subscriptions are $4.99 USD for 1 month of $29.99 USD per year - Payment will be charged to your iTunes account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase - No cancellation of the current subscription is allowed during active subscription period - Any unused portion of a free trial period, if offered, will be forfeited when the user purchased a subscription to that publication - Our privacy policy and terms of use: https://www.azumio.com/page/privacypolicy And many other features for you to enhance your fitness experience. You won’t be disappointed when you train hard with Instant Fitness.

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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
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.