PrepLyfe vs Build
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PrepLyfe
This app uses AI to create personalized fitness and nutrition plans for athletes and coaches. It offers habit tracking, detailed logging of workouts and meals, and progress analysis. Coaches can manage clients, assign habits, and generate plans through a dedicated platform.
- AI-driven plan generation
- Habit tracking with Discipline Score
- Macro planning and food logging
- Workout logging with progress trends
- Body metrics tracking
- Coach platform for client management
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PrepLyfe — Live Disciplined. Built by an IFBB Pro Athlete and Competition Prep Coach, PrepLyfe is the fitness app for athletes who train with intent and the coaches who guide them. Powered by the Physique Intelligence Engine™, PrepLyfe combines AI-driven plan generation, habit tracking with a daily Discipline Score, deep nutrition and training tracking, and a full coach platform — all in one app. ATHLETES — track what matters • Habit tracking + daily Discipline Score — quantify the consistency that drives results. • Macro planning with USDA + branded food search and barcode scanning • Daily food logging with live progress bars • Workout logging — sets, reps, weight, history, and volume trends • Body metrics: weight, body fat %, skeletal muscle mass, hydration, blood pressure • Apple Health integration for steps, energy, and biometrics • Daily check-ins with text, photos and voice messages • AI-powered progress analysis, peak week protocols, and plan/macro/cardio adjustments COACHES — manage clients without the chaos • Client roster, plan editor, and check-in review inside the app • Assign custom habits to clients — accountability built into the daily flow • AI Plan Generator for prep, training, and nutrition plans • Public storefront (preplyfe.io/c/yourhandle) for selling coaching, digital programs, and AI plans • Multi-coach delegation per plan • In-App Photo and voice attachments on client text messages THE PRINCIPLE Activation. Isolation. Concentration. Progressive overload. Every feature is built around that core training philosophy. PRICING • Athletes — free at the base tier. Optional AI Credit packs (consumable IAP) or Athlete Unlimited subscription (auto-renewable IAP) for full AI access. • Coaches — web-managed subscription tiers, starting at $9.99/mo at preplyfe.io/coach/billing. Terms of Use: https://preplyfe.io/terms Privacy Policy: https://preplyfe.io/privacy Live Disciplined.
Build
Log your weightlifting sets and reps using voice commands in seconds. Import workout routines from photos and track your progress with detailed charts and timers. Works offline and syncs across devices.
- Voice logging for sets and reps
- Import routines from photos
- Progress tracking charts
- Rest timers with notifications
- Plate calculator
- Offline functionality
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Build is the workout tracker you talk to. VOICE LOGGING Hold the mic and say "225 pounds, 5 reps." The set is logged before you rack the bar. IMPORT A ROUTINE FROM A PHOTO Photograph any program — a coach's sheet, a screenshot, a post you saved — and Build turns it into a routine you can train from. TRAIN WITH FRIENDS Follow your gym friends, react to their PRs, and set shared challenges. See who's training right now and lift alongside them. EVERYTHING ELSE • Full history, progress charts, and personal records • Routines you can organize into folders and reorder • Rest timers, plate math, and warm-up sets • 340+ built-in exercises with demos, or add your own • Goals, challenges, and a friends leaderboard • Apple Watch app, and workouts sync to Apple Health • Bring your history over from Strong with a CSV import BUILD PRO Build is free to use. Pro adds unlimited voice logging and unlimited photo imports, plus every future Pro feature: • $2.99 per month • $19.99 per year • $59.99 once, for lifetime access Subscriptions begin with a 3-day free trial and renew automatically unless cancelled at least 24 hours before the period ends. Manage or cancel any time in your App Store settings. The lifetime purchase is a one-time charge and does not renew. Privacy Policy: https://usebuild.app/privacy Terms of Use: https://usebuild.app/terms
Screenshots
Verdict
The clearest difference is ratings volume: Build at 21 against PrepLyfe's 2. PrepLyfe's advantage is update cadence (every 4 days vs every 9 days). On price, rating, review sentiment and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. PrepLyfe sells 4 in-app purchases, starting at $9.99 per month and Build sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for PrepLyfe against 5.0 for Build. That said, the two scores are not equally well evidenced: Build has 21 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
PrepLyfe ships an update every 4 days, Build every 9 days. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.
| Parameter | PrepLyfe | Build |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (21 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 21 — better |
| Update frequency | Every 4 days — better | Every 9 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPod, Apple Watch |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 52 MB | 70 MB |
| Age rating | 12+ | 4+ |
| Developer | Infinite Software Solutions, LLC | Sawdust Ventures LLC |
Customer experience
PrepLyfe
Build
In-app purchases
PrepLyfe
- Athlete Unlimited$9.991 Month
- 15 AI credits$4.99
- 50 AI credits$14.99
- 120 AI credits$29.99
Build
- Build Pro3 Days trial$9.991 Month
- Build Pro3 Days trial$79.991 Year
- Build Pro Lifetime$149.99









