App Overview

BestLift - Track Your Workouts icon

BestLift - Track Your Workouts

Alan O; Connor · Health & Fitness

Stop paying monthly to log your workouts.

$1.99 · In-app purchases

PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet

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 included15 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 BestLift - Track Your Workouts: 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

Add Apple Watch support for easier workout tracking.

Assumption to check: Limited integration with wearables

Validate with people who use this workflow before building.

Hypothesis 2

Implement social challenges and friend tracking.

Assumption to check: Insufficient social features

Validate with people who use this workflow before building.

Hypothesis 3

Offer customizable workout templates and routines.

Assumption to check: Lack of personalized workout plans

Validate with people who use this workflow before building.

Hypothesis 4

Enable users to share their progress on social media.

Assumption to check: No progress sharing options

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

Stop paying monthly to log your workouts. BestLift is a one-time purchase workout tracker with no subscriptions, no in-app purchases, and no account required. Your data stays on your device — no network connection needed. STRENGTH TRAINING • Log sets, reps, and weight with pre-filled values from your last workout • 100+ built-in exercises — or create your own custom exercises • Search exercises by name, equipment, or muscle group • Set favourite exercises and access recent exercises quickly • Edit or delete sets during your workout • Enter decimal weight values for precision (e.g. 22.5 kg) • Personal records tracked automatically after every workout • One Rep Max calculations (Brzycki & Epley methods) • Create and save workout routines for quick access CARDIO & GPS • Track running, walking, cycling, and hiking with real-time GPS • Live pace, distance, lap splits, and elevation profile • Auto-lap by distance with configurable intervals • Pace alerts to keep you in your target zone • Custom PR distances — track records at any distance • Indoor support for treadmill and stationary bike • Cardio personal records and charts CHARTS & PROGRESS • See total weight, reps, sets, and 1RM over time • Weekly, monthly, 6-month, and yearly views • Per-exercise progress charts • View workout summaries with stats and PRs APPLE WATCH • Log sets directly from your wrist • Full workout tracking on watchOS SHARING & EXPORT • Share workout summary cards with stats and PRs • Overlay workout stats on your gym photos • Export and import your workout data • HealthKit integration BUILT FOR YOUR WORKOUT • Rest timer between sets with notifications • Workout timer tracks your session length • Keep screen on during workouts • Dark mode and theme selection • Switch between kg and lbs mid-workout • Resume in-progress workouts • Live Activity on your Lock Screen • Save workout location and notes • View all past workouts from home and history screens

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
Axios
react-navigation
react-native-reanimated
TypeScript
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.