The training app for athletes who run and lift. A programming algorithm that balances both disciplines — so heavy leg day never lands before your long run, and easy miles never become a junk-training trap.
Built from the ground up for athletes who refuse to choose between the barbell and the trail. Every feature reinforces the other.
Custom number pad, never the system keyboard. Previous set pre-filled, RIR / RPE capture, auto-starting rest timer that survives the lock screen, live PR detection per exercise.
GPS or manual. Live heart-rate zones 1–5, current and average pace side by side, auto-lap every km/mile, and post-run zone distribution so 80/20 isn't a guess.
Never schedules heavy lower-body inside 24 hours of your long run. Rest day before and after long efforts. Reduces gym volume on peak mileage weeks. Non-negotiable.
HRV, resting HR, sleep and training load blended into a 0–100 score with a plain-English recommendation: rest, easy, moderate, hard. Rewritten nightly at midnight.
Flag a cranky knee or shoulder once. The algorithm removes contraindicated lifts, reduces downhill miles, substitutes neutral-grip movements — automatically and forever.
Acute-to-chronic workload ratio tracked separately for run and lift, plus a combined total. See when you're ramping too fast before your body tells you with an injury.
Apple Health, Google Health Connect, and Garmin Connect. Auto-import runs, HR, HRV and sleep. Ask once, sync forever — no companion watch app to wrangle.
Every tap writes to local storage first, syncs when signal returns. Gym basements, trail runs out of coverage — log anything, anywhere, confirm instantly.
6–8 polished hybrid programs at launch: foundation, strength+maintenance, OCR prep, half-marathon+strength, powerlifting meet prep, body recomp, and advanced concurrent blocks.
Enter a race date or meet date. The plan reverse-engineers from it — deloads placed, peak intensity timed, taper handled. Works for 5Ks, ultras, and powerlifting meets.
Log caffeine and nicotine with real timing. Get a cutoff warning when it's too close to sleep, and see how stimulant load is impacting recovery score over time.
Workout streak with grace-day rest logic. PR celebration with shareable card. Badges for True Hybrid, Recovery Master, Clean Fuel, program finishes. No leaderboards, no hype.
Most hybrid apps are a lifting app with a stopwatch bolted on. Mass in Motion treats running and lifting as equals with their own first-class tools.
Built for loaded barbells and a chalked-up phone. Number pad always visible at the bottom. Previous set auto-filled. Rest timer auto-starts on checkmark.
Your watch is the radio; the app is the mission control. Zone distribution, VDOT-based pace prescriptions, and long-run physiology baked into every plan.
Every program follows the non-negotiables: 80/20 running intensity, deload every fourth week, lower-body volume reduced on peak mileage weeks.
Your first 8 weeks. 2 lift days, 2 run days, 3km → 8km long run. Full-body lifting 2×/wk with foundational movements.
Maffetone-inspired base building. 3 run days, 2 lift days. Engine first, strength maintained as a buffer.
Push / pull / legs with maintenance miles twice weekly. Build mass without losing the ability to hold a conversation on a 10K.
Functional strength, grip work, loaded carries, trail intervals. Built for Spartan, Tough Mudder, and Hyrox-style events.
Full 14-week HM periodization with 2×/week upper-body work. Lower-body gym reduced so legs own the long run.
SBD peak block with Zone 2 conditioning twice weekly. Walk onto the platform stronger and conditioned enough to warm up three times.
Equal lift and run volume with 80/20 running intensity. For the athlete who wants to lean out without losing either engine.
Tempo + interval running with a 4-day lifting split. Only if you've finished two other plans and your recovery score trends green.
Most training apps are glorified spreadsheets. Mass in Motion blends HRV, resting HR, sleep, training load, stimulant timing, and injury flags into a single daily score — and rewrites tomorrow's workout if it needs to.
One tier, both platforms, every feature. No ad-supported version, no "basic plan" with half the programs locked.
Month-to-month. Cancel any time from your App Store or Play Store.
Best value for athletes on a full race season or multi-block plan.
No hedging, no marketing-speak. If it's not here, email massinmotionapp@gmail.com.
Summer 2026 on iOS and Android. We're a solo-founder side project, so we'd rather ship late than ship broken. Waitlist members get TestFlight and Android beta access 4–6 weeks before public launch.
No. Everything works with manual entry. But if you have Apple Health, Google Health Connect, or a Garmin, we'll auto-import runs, HR, HRV and sleep so the algorithm has more to work with.
Not at launch. We read from your wearable rather than write to it — that means no watch-face wrangling, no battery drain, and no second place to check stats.
Programming rules that are actually enforced: heavy lower body never within 24 hours of a long run, 80/20 running intensity by default, lower-body gym volume auto-reduced on peak mileage weeks, and a deload every fourth week no matter how good you feel.
Custom program builder is on the post-launch roadmap. At launch you'll pick from 8 pre-built programs covering beginner through advanced, with goal-race or meet-date backward planning.
Flag the area in settings — knee, shoulder, lower back, whatever. The algorithm auto-removes contraindicated lifts, substitutes safe alternatives, and reduces running load until you clear the flag.
Yes, by design. Every tap writes to local storage first and syncs when connection returns. Built for gym basements, trail runs, and airplane mode.
Get TestFlight access before public launch, locked-in founding-member pricing, and a quiet monthly note when we cross each milestone.