Comparison

SweatStacks vs SENTINEL FORGE

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SweatStacks

Features
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Introducing SweatStacks, your new fitness companion. We're about making world-class fitness accessible, bringing you detailed regimens, aka "stacks", from the industry's top professionals. With SweatStacks, your personalized training plan is a tap away. We generate a training calendar for you based on proven principles of progressive overload and training periodization. We've got your exercises, sets, and reps all sorted. Plus, we've got weight recommendations in the pipeline! For our big launch, we're featuring one exceptional goal - Dr. Andrew Huberman's "Foundational Fitness Protocol". It's a game-changer and it's just the beginning. Welcome to the next level of fitness with SweatStacks. Key Features: - Weekly Training Schedule: Know your upcoming workouts and easily keep track of recently completed sessions. Our interface is designed to keep you motivated and aware of your weekly regimen. - Automated Progress: We have a built-in progressive overload feature that smartly manages your sets and reps for each exercise. This ensures you're always challenging your body to adapt and grow stronger. - Visual Demonstrations: Stay confident with your form and routines. Each exercise comes with a demonstrative gif and an option to log the weight you lift. - Detailed Training History: Stay informed about your progress. Our app provides a detailed history of each exercise, including the weight you used, the number of reps you completed, and your perceived exertion. - Personalized Training Plans: Choose your fitness goal and have a suitable training plan created for you. Whether you're aiming to build muscle, lose fat, or enhance your overall strength, we have a plan tailored just for you. - Apple Health Integration: Sync your workouts directly to the Health app

About

SENTINEL FORGE

This app offers AI-driven fitness and performance tracking for athletes and serious lifters. It analyzes biometric data from wearables to provide personalized workouts, readiness scores, and even marksmanship training.

Highlights
  • AI-personalized workout programming
  • Daily TALOS readiness scoring
  • Integrated marksmanship training drills
  • Apple Health and wearable integration
  • Conversational AI training coach
  • Lab result and body composition analysis
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SENTINEL FORGE is operator-grade training intelligence built for soldiers, law enforcement, competitive athletes, and serious lifters. AI-personalized workouts, daily TALOS readiness scoring, and integrated marksmanship training — all calibrated to your real biometric data from Apple Health and connected wearables. KEY FEATURES: TALOS READINESS SCORE Daily AI-calculated readiness across four pillars: • Recovery — heart rate variability, sleep quality, oxygen saturation, resting heart rate • Workload — training load, ACWR (Acute:Chronic Workload Ratio), volume • Fuel — macros, calories, body composition • Stress — cognitive and physiological signals AI WORKOUT PROGRAMMING Generate complete workout campaigns calibrated to your goals, schedule, and current readiness. The system adapts based on your TALOS score — light days when you're depleted, push days when you're peaked. MARKSMANSHIP TRAINING 44 live-fire drills + 12 dry-fire drills + 6 printable target sheets covering fundamentals, close-quarters technique, reloads, malfunction clearance, movement-based shooting, and competition formats (IDPA, USPSA, 3-Gun). Industry-standard drill library for professional and sport-level firearms training. APPLE HEALTH INTEGRATION Reads heart rate, HRV, sleep stages, oxygen saturation, respiratory rate, weight, body fat percentage, and workout history from Apple Health. Data is never written back — read-only integration. Revoke access anytime in iOS Settings. CONNECTED WEARABLES Integrate Whoop, Oura, Fitbit, Ultrahuman, and Eight Sleep alongside Apple Health. SF unifies signals across all your devices to compute one accurate readiness score. AI COACH Conversational AI training coach. Ask about programming, recovery, technique, plateau-breaking, and form. Trained on operator-fitness principles, sports science research, and progressive overload theory. LAB IMPORT Upload lab results (PDF). AI extracts biomarkers — testosterone, cortisol, lipids, glucose, hormones — and tracks trends over time. PII redacted locally before processing. BODY COMPOSITION AI Photo-based body composition analysis. Track body fat percentage, lean mass, and physique changes over time. FITREP REPORTS AI-generated performance evaluations. Comprehensive readouts of your training, recovery, and progression over any time window. VOICE LOGGING Log workouts hands-free. AI parses your voice into structured workout data. SUBSCRIPTION TIERS: Foundation ($24.99/mo or $250/year) — Full dashboard + tracking, unlimited device integrations, basic AI quotas. Vanguard ($44.99/mo or $475/year) — Expanded AI quotas for serious training. Sentinel ($59.99/mo or $600/year) — Top consumer tier with the highest AI quotas across all features. 14-day free trial on every tier. Cancel anytime in iOS Settings → Apple ID → Subscriptions. Subscription auto-renews unless turned off at least 24 hours before the end of the current period. Payment is charged to your Apple ID at confirmation of purchase. Subscription manages itself — no action required to renew. Privacy Policy: https://www.sentinel-forge.net/privacy/ Terms of Use: https://www.sentinel-forge.net/terms/

Screenshots

SweatStacks4 screens
SENTINEL FORGE4 screens

Verdict

The call

The clearest difference is in-app purchases: SweatStacks at none against SENTINEL FORGE's 10. SENTINEL FORGE's advantage is update cadence (every 4 days vs every 10 days) and device support (3 vs 1). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SENTINEL FORGE sells 10 in-app purchases, starting at $24.99 per month. SweatStacks asks for nothing beyond the download.

UpkeepUpdate frequency

SweatStacks ships an update every 10 days, SENTINEL FORGE every 4 days. The most recent releases landed on September 15, 2026 and September 21, 2026 respectively.

Scorecard4 real differences · 6 level
SweatStacks versus SENTINEL FORGE: the parameters behind the verdict, then further details
ParameterSweatStacksSENTINEL FORGE
PriceFreeFree
Rating—5.0 (4 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—4 — better
Update frequencyEvery 10 daysEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size740 MB116 MB
Age rating4+12+
DeveloperOftring Ventures, LLCANQ LLC

In-app purchases

None

SweatStacks

No in-app purchases

10 purchases

SENTINEL FORGE

Subscriptions1
  • Sentinel — Monthly14 Days trial$24.991 Month
One-time9
  • AI Voice Logging - 25 Pack$7.99
  • Nutrition Lookup - 25 Pack$7.99
  • AI Meal Plan - 5 Pack$7.99
Show 6 more
  • AI Campaign Generation - Single Use$9.99
  • TALOS Daily Assessment - 30 Pack$14.99
  • AI Form Check - 10 Pack$14.99
  • AI Coach Chat - 25 Pack$14.99
  • AI-Generated FITREP - 5 Pack$19.99
  • AI Campaign Generation — 3 Pack$24.99

Questions

Is SweatStacks free?
SweatStacks is free to download, with no in-app purchases.
Is SENTINEL FORGE free?
SENTINEL FORGE is free to download, with in-app purchases available.
Do SweatStacks or SENTINEL FORGE have ads?
Neither SweatStacks nor SENTINEL FORGE shows ads.
Which is updated more often, SweatStacks or SENTINEL FORGE?
SweatStacks ships an update every 10 days, and SENTINEL FORGE every 4 days. Most recently, SweatStacks was updated on September 15, 2026 and SENTINEL FORGE on September 21, 2026.

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