Should you build your own Strong Pro?
Log workouts, templates, sets, rest timers, and personal history locally
The core loop is small enough for a capable coding agent to produce a useful local version in one sitting. For Strong Pro, log workouts, templates, sets, rest timers, and personal history locally. The hard boundary is mobile polish, widgets, watch app, cloud sync, and exercise database, plus hardware data, content, coaching, and trust.
ENOriginal research content in English. Original prompt preserved in English.
Build a personal replacement for Strong Pro in an empty repository.
Use React Native with Expo, TypeScript, SQLite, and HealthKit or Health Connect only when explicitly enabled; do not offer alternative stacks.
The core loop is: log workouts, sets, and rest timers from templates, keep personal history locally, plan moderate routines, and show trends without enforcing restrictive goals.
Make the first run work locally with one documented command.
Store all user data locally by default and make export straightforward.
Put secrets in .env, ship .env.example, and never commit credentials.
Create optional logs for activity, sleep, mood, energy, and personal notes with editable units.
Let the user build moderate routines and rest days without weight-loss targets, punishment, or competitive pressure.
Request health-platform permissions per data type and work fully without granting them.
Show weekly patterns and consistency with neutral language and no diagnostic or body-image judgments.
Add reminders that can be muted, data export, account-free local use, and full deletion.
Include a clear statement that the app is not medical care and should not replace qualified advice.
Include clear empty, loading, success, and recoverable error states.
Add input validation, safe filenames, and graceful handling of unavailable APIs.
Write focused tests for the core transformation and one end-to-end happy path.
Create a README with setup, architecture, permissions, data location, and backup steps.
Do not add accounts, billing, telemetry, analytics, or a hosted control plane.
Deliberately leave out medical diagnosis or treatment.
Deliberately leave out extreme exercise or restrictive-eating coaching.
Deliberately leave out wearable hardware, human coaching, and a large social network.
Finish by running the tests and listing the exact commands used.The prompt opens pre-filled in your agent. Review it before running. · this prompt is generated from the build plan · improve it via PR
What would building your own look like?
Log workouts, sets, and rest timers from templates, keep personal history locally, plan moderate routines, and show trends without enforcing restrictive goals.
What you will need
- iOS or Android device
- optional HealthKit or Health Connect permission
- local storage
People still pay for Strong Pro because people pay for polished mobile capture, trusted content, hardware integration, and coaching rather than the basic logbook. The recurring cost buys sensor permissions, data quality, notifications, safety language, accessibility, sync, privacy, content review, and support, not just the visible interface.
xmobile polish, widgets, watch app, cloud sync, and exercise database
xwearable hardware data
xcoach network
xclinical validation
xlarge content library and social network
Prefer something ready-made?
View all 3 alternatives to Strong Pro →· Licença, instalação e limitações em cada alternativa.
How much does Strong Pro cost?
- Monthly billing
- $4.99/mo$4.99/mo
- Per year
- $59.88/yr$59.88/yr
- Annual billing
- $30/yr50% cheaper than paying monthly
- On a Brazilian card, with 3.5% IOF
- R$26.08/moR$157/yr
Saved to My list. You will see a notice on this site when the price changes.
You complete the purchase on Strong Pro’s site. Vibe Radar does not handle payments.
| Plan | Monthly | Annual (per month) | What is included |
|---|---|---|---|
| free | $0/user | $0/user | Unlimited saved workout history and 3 custom workout templates |
| strong pro | $4.99/user≈ $4.99 | $2.50/user≈ $2.50 | Unlimited routines/templates plus all Pro features |
| strong pro lifetime | custom | - | Lifetime PRO access |
Free tierFree plan: unlimited saved workouts and 3 custom workout templates.
Billing termsmonthly + 6-month + annual + one-time Lifetime
Additional costsNo Family Sharing. App-store legacy offers can show $3.99 monthly, $23.99 annual, or $79.99 Lifetime; buying a paid plan can forfeit any unused trial period.
verified 2026-10-20 · source ↗
Is it cheaper to build or buy Strong Pro?
Adjust the numbers: hours to build, your hourly rate, running costs and the subscription price.
Over 24 months, subscribing is cheaper.
Starting hours estimated from the analysis (multi-day). Does not price what you give up (support, integrations, security).
Can I rebuild Strong Pro?
Yes. A competent AI coding agent (Claude Code, Codex, Cursor) can build a usable personal Strong Pro replacement in one session with the prompt on this page. It runs on your own machine or server with no subscription.
How much does Strong Pro cost?
Strong Pro costs about $4.99/mo (Pro, checked 10/20/2026), which is $30 per year. That’s what you save by replacing it with one prompt.
What do I lose by replacing Strong Pro?
Honestly: mobile polish, widgets, watch app, cloud sync, and exercise database; wearable hardware data; coach network; clinical validation; large content library and social network. If any of those are load-bearing for you, keep paying.
Is there an open-source alternative to Strong Pro?
Yes: wger (Workouts, sets, timers and charts on your own server; setup day counts as cardio.) LiftLog (Sets, timers, plans and charts live on the phone instead of behind a lifetime unlock.) FitNotes (A no-ad Android lifting log that has been doing the basic job for years.) All 3 curated free alternatives are at https://viberadar.si/strong-pro/alternatives. The prompt is for when you want it exactly your way.