GainMatrix vs SimpleStep
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
GainMatrix
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Lift smarter with an AI gym tracker that understands your training, your recovery, and your next PR. GainMatrix is an all-in-one strength training companion that logs your workouts, coaches you with AI, tracks your recovery, and projects your future progress so you can stay consistent, avoid plateaus, and keep breaking records. AI PERSONAL COACH - Ask questions mid-workout about form, technique, or how to progress your lifts. - Get tailored plans whether your goal is strength, muscle gain, fat loss, or endurance. - Training adapts to you based on your real workout history, not generic one-size-fits-all templates. - Learn when to add weight, add sets, or change exercises with clear explanations. PROGRESS PROJECTIONS - See where your squat, bench, deadlift and other lifts are headed over the next 12 weeks. - View projected changes in strength, body weight, and other metrics based on your logged workouts. - Instantly see if you are on track for your next PR or goal date. - Adjust your training in advance instead of realizing too late that progress has stalled. RECOVERY STATUS - Know when to push heavy and when to back off before you burn out. - Track recovery using training load, rest days, recent intensity, and your own feedback. - Get early warnings when you are trending toward overtraining or under-recovering. - Reduce nagging fatigue and plateaus by balancing stress and recovery more intelligently. WORKOUT LOGGING - Log sets, reps, and weight in seconds so you can focus on lifting, not typing. - Automatically detect new PRs for 1 rep, rep ranges, and volume. - Use the built-in rest timer so you never lose track between sets. - Quickly repeat or tweak past workouts from your history. - Choose from 300+ exercises with clear names and categories, or add your own. TRAINING INTELLIGENCE - Track personal records across all lifts in one place. - Visualize progress with charts showing strength, volume, and frequency over time. - Use the weekly training heatmap to spot strong and weak training days at a glance. - See your training, recovery days, and deloads laid out on a calendar. GAMIFICATION AND MOTIVATION - Progress through a 16-level system that reflects real training effort. - Earn XP automatically for every completed workout and exercise. - Maintain streaks to build consistency and avoid falling off track. - Take on weekly challenges and unlock achievements and badges that reward long-term effort. ADVANCED ANALYTICS - See total workouts, sets, reps, and volume so you understand your true workload. - Track body measurements like weight, waist, or arm size and see clear trends over time. - Connect the dots between training volume, recovery, and results. - Export your data for your own spreadsheets, analysis, or coaching. FLEXIBLE PLANS - Use the free tier for powerful workout logging, history, and motivation tools. - Upgrade to unlock the AI coach, recovery status insights, and progress projections when you are ready. - No credit card required to start. Perfect for: - Lifters who want to see real progression over months and years, not just single workouts. - Anyone who needs structure, accountability, and feedback instead of guesswork. - Beginners who want clear guidance on what to do next and how to do it safely. Start free and turn every workout into measurable progress. Questions? support@gainmatrix.app Terms of Use: https://gainmatrix.app/terms Privacy Policy: https://gainmatrix.app/privacy
SimpleStep
Track your daily steps, distance, and goal progress with this straightforward iPhone pedometer. View historical activity through daily, weekly, monthly, and yearly charts. Enjoy a clean, ad-free experience with no account required.
- Step, distance, and goal tracking
- Daily, weekly, monthly, yearly charts
- Customizable daily step goal
- App icon badge for steps
- Light/dark/system appearance options
- Accent and app icon color choices
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Your steps, without the clutter. SimpleStep is a simple iPhone pedometer that shows todayβs steps, walking and running distance, and goal progress at a glance. Look back at your activity with daily, weekly, monthly, and yearly charts. No ads. No account. No tracking. One purchase, with no subscriptions or in-app purchases. WHAT YOU CAN DO β’ View todayβs and past daysβ steps, distance, and goal progress β’ Swipe to move between days and chart periods β’ Review daily (hourly), weekly, monthly, and yearly step charts β’ See totals and averages for steps and distance β’ Tap a weekly chart bar to view that dayβs activity β’ Set a daily goal from 1,000 to 30,000 steps in 1,000-step increments β’ Show todayβs steps on the app icon badge with notification permission β’ Receive a silent goal notification once per day β’ Choose light, dark, or system appearance β’ Choose from seven accent colors and seven app icon colors IPHONE-RECORDED ACTIVITY SimpleStep reads Steps and Walking + Running Distance from Apple Health. Only records created by your iPhone are included. Apple Watch data, manual entries, and records written by other apps are excluded. Health data is read-only and stays on your iPhone. SimpleStep does not send your health data to an external server. Distance is displayed in kilometers. Step badges and goal notifications update when you open or return to the app, or when HealthKit delivers a background update. They do not update continuously while the app is closed. REQUIREMENTS An iPhone running iOS 18 or later. Languages: English and Japanese.
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Verdict
The clearest difference is price: GainMatrix at Free against SimpleStep's $0.99. GainMatrix also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.0). SimpleStep's advantage is in-app purchases (none vs 4). On update cadence and ads there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
GainMatrix is free to download; SimpleStep costs $0.99 up front. GainMatrix sells 4 in-app purchases, starting at $2.99 per month. SimpleStep asks for nothing beyond the download.
GainMatrix ships an update weekly, SimpleStep every 5 days. The most recent releases landed on October 4, 2026 and September 27, 2026 respectively.
| Parameter | GainMatrix | SimpleStep |
|---|---|---|
| Price | Free β better | $0.99 |
| Positive reviews | β | 100.0% of reviews |
| Update frequency | Weekly | Every 5 days β better |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Monetization | β | Paid |
| Devices | iPhone, iPad, iPod β better | iPhone |
| Requires iOS | 15.1 β better | 18.0 |
| Further details β not scored | ||
| Size | 64 MB | 1 MB |
| Age rating | 12+ | 4+ |
| Developer | Ulas Uzunyayla | Hiroyuki Yagi |
In-app purchases
GainMatrix
- GainMatrix Pro$2.991 Month
- GainMatrix Pro$4.991 Month
- GainMatrix Pro$17.991 Year
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- GainMatrix Pro$24.991 Year
SimpleStep
No in-app purchases
Questions
Is GainMatrix free?
Is SimpleStep free?
Do GainMatrix or SimpleStep have ads?
Which is updated more often, GainMatrix or SimpleStep?
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