Basalt Lab vs HeavyMuscle

Every set you grind out deserves to be counted. Basalt Lab is the data discipline of a spreadsheet, built into native iOS: you train, the app keeps score, and your progress becomes visible, session after session. Two modes, depending on how you train: • Manual: log a set in 2 taps and get back under the bar. The rest timer is there when you want it. • Lab (Pro): validate with a swipe and the rest rolls into the next set. Your phone fades into the background. YOUR SESSION, WITHOUT FRICTION • Your previous session replayed set by set (Pro): you know exactly what to beat today, and today's load wins when it's heavier. • Apple Watch: log from your wrist with the Digital Crown, phone stays in the bag. • Live Activities + Dynamic Island: your rest and your next set stay in sight on the Lock Screen, in both modes. • 370+ exercises, supersets (Pro), swap an exercise mid-session. • 52 ready-made workouts, ready to start (12 free): you pick, the app runs it. PROOF YOU'RE MOVING • 48 statistics (14 included, +34 with Pro) built around the only question that matters: are you actually progressing? • Plateau detection: know it's stalling before you lose weeks to it. • Your 1RM projected at 3 and 6 months: see where you're headed, not just where you've been. • Push/Pull ratios, strength radar, an overtraining alert when your volume runs past your average. • Regularity heatmap, streaks and trophies: your consistency finally shows. • Your session heart rate (Apple Watch): the curve on your recap, your average, your max and your recovery. • Add past sessions to your calendar (Pro): your history stays complete, even when life gets in the way. • A session recap you can share as an image, when you have something to show. WHO IT'S FOR For serious lifters who want to progress without noise. No imposed coach, no childish badges, no social feed: nobody to impress, just you and your numbers. FREE VS PRO Free: unlimited workout journal, 14 statistics over the last 4 weeks, 3 custom sessions and 5 custom exercises, Manual mode, Watch, Live Activities, widget, trophies. Pro (7-day trial, annual plan only): Lab mode, set-by-set prefill, supersets and session comparison, past sessions, unlimited customization, unlimited stats history, +34 advanced statistics and the strength radar. THE METHOD, DOCUMENTED The average lifter who tracks their progress does better than 66% of those who don't (Harkin et al., 2016). Same program, app-guided: the sessions get done. Alone, one in two gets skipped (Gavanda et al., 2025). Studies on the methods: not on the app itself. YOUR DATA, YOURS No ad trackers. The app works fully offline: your history lives on your device and belongs to you. Backups hosted in the EU (Paris). You rack the phone, you grab the bar. We keep count. Basalt Lab Pro — auto-renewable subscription. • Monthly: $7.99/month. • Annual: $49.99/year, i.e. $4.17/month, with a 7-day free trial — the trial is available on the annual plan only. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage your subscription and turn off auto-renew in your Apple Account settings. Prices shown for the U.S. store; they may vary by country. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://basaltlab.app/privacy

Most gym apps just record what you already did. HeavyMuscle is the workout tracker & gym log that tells you what to do next — and does the thinking for you. An AI coach in two modes builds your weight lifting plan from a single sentence and reshapes each session around your injuries, equipment and recovery. Before you touch the bar, it shows the plates to load, generates your warm-up sets and pre-fills every set with your last numbers. Automatic PR detection and an estimated-1RM curve tell you the moment you get stronger. 873 animated exercises, a real rest timer and a recovery body map, in 6 languages. Create unlimited routines, log unlimited workouts, all offline from the first second. AI COACH • Two modes: Conversation for questions and adjustments, and Builder to generate a full workout plan from scratch. • Generates a full workout from a single sentence ("30 min chest workout without barbell"). • Snap a photo of a gym machine and it finds the matching exercise. • Adapts today's training to your injuries, available equipment and experience level. • Reviews your last session or the full week and gives objective feedback. WORKOUT LOG • Every set pre-filled with your last weight and reps — your previous numbers are right there at the rack. • Plate calculator: see exactly which plates to load per side, for barbells and dumbbells. • Time-based exercises: cardio, planks and circuits (AMRAP / for time) with a built-in timer. • Warm-up sets generated automatically, ramped to your working weight. • Rest timer with 3-2-1 beeps, vibration and a screen that stays on. • Warmup, drop-set, failure and cluster sets, plus supersets. • Quick Start, unlimited workout templates and retroactive logging. • Share a session as a post-ready image card (volume, sets, muscles). EFFORT & PROGRESSION (RPE/RIR) • Rate how hard each set felt — RPE or reps in reserve, one tap after the set. • Next time, the workout planner suggests the weight: up when it felt easy, down when it was a grind — always weights you can actually load. PROGRESS & RECORDS • Automatic PR detection with a record badge the moment you beat a best. • Estimated-1RM curve per exercise to see your strength trending over time. • Progress photos: capture, import and compare with a before/after slider. EXERCISE LIBRARY • 873 exercises with animated demonstrations, target muscles, equipment and difficulty. • Mark favourite and avoided exercises — the AI Coach factors them in. HISTORY & ANALYTICS • Recovery body map (front/back): see what's fatigued, recovering or ready to train. • Weekly volume per muscle as a body heatmap or ranked chart, with low/optimal/high zones. FULL PROFILE • Body measurements with dated history and goals — set a target and watch the gap close. • Water tracking: daily hydration goal, one-tap logging and reminders. • 10 injury zones with automatic exercise filtering. • Builder that respects your equipment, goal and experience level. APPLE WATCH • Your workout mirrors to your wrist — check off each set with a tap, pre-filled with your last numbers. • Adjust weight and reps with the Digital Crown; rest counts down with 3-2-1 haptics. • Live heart rate and calories, with a summary when you finish. Requires a paired iPhone. PRIVACY & OFFLINE • Works fully offline in anonymous mode: nothing leaves your phone until you sign in. • Optional Apple, Google or e-mail login syncs your gym log to the cloud. LANGUAGES • English, Portuguese (BR), Spanish, German, French and Italian. Whether you train for bodybuilding, powerlifting, strength training or hypertrophy, HeavyMuscle is the gym tracker that turns effort into progress. Privacy and subscription terms: https://heavymuscle.app/privacy/#subscription Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/