Calc Run vs Forerunner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calc Run
This app helps you build a consistent running habit with goal setting, streak tracking, and advanced performance analytics. It offers features like a cadence metronome, interval training, and detailed post-run visualizations to enhance your running experience.
- Weekly goals and streak tracking
- Cadence metronome
- Interval training
- 3D route replays
- Performance analytics
- Gear tracking
- Apple Watch integration
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Build a lasting running habit with Calc Run. Calc Run is more than just a tracker—it's your partner in staying consistent. From essential tracking to advanced features like a cadence metronome and interval training, we provide everything you need to level up your performance. Set weekly goals, maintain your streaks, and invite friends to cheer each other on. After your run, stay motivated with beautiful record cards, 3D route replays, and in-depth performance analytics. [Key Features] - Weekly Goals & Streaks: Set personalized goals and keep your streak alive. Sync with buddies to crush your targets together. - Tile Heatmap: Every run counts. Watch your paths turn into tiles and complete your own global running map. - Cadence Metronome: Stay on rhythm. Our metronome helps you maintain your target cadence, even on Apple Watch (standalone support). - Advanced Frequency Algorithm: Experience high-precision cadence tracking powered by iPhone's accelerometer and Calc Run's optimized frequency analysis. - Real-time Analytics: Monitor your pace and cadence live while you run. - Gear Tracker: Register your running shoes and track mileage to know exactly when it's time for a new pair. - Calendar Log: View your monthly progress at a glance and dive into detailed records for any specific day. - 3D Route Replay & Graph Overlay: Relive your run with a vivid 3D visualization. Elevation, heart rate, and pace graphs overlay your route replay for deeper insight. - In-depth Charts: Analyze your pace, cadence, heart rate, elevation, and stride length with professional-grade graphs. Scrub through the route graph to explore any point on your run. - Customizable Sharing: Create unique record cards by arranging your stats and route exactly how you want them. - Apple Watch Integration: Go phone-free! Track your entire run and monitor heart rate in real-time directly from your wrist. Customize which metrics appear on your Watch screen. - Weather at a Glance: Check current weather conditions before heading out, right from the running tab. - Stats & Trends: Visualize your growth with comprehensive statistics and trend reports. [Premium Features] - Ad-Free Experience: Focus entirely on your run. - Full Goal & Streak Access: Create multiple goal types, join buddies, and use "Streak Freeze" to protect your progress. - Training Plans: Follow structured training plans for your distance goals. Review completed plans with week-by-week details. - Monthly & Yearly Recap: A beautiful summary of your achievements. - Personal Tile Heatmap: Exclusive access to your cumulative running map. - Advanced Trend Graphs: Deeper insights into your performance over time. - Heart Rate Zones: Detailed breakdown of time spent in each zone and average pace charts. - Personal Bests: Track your record times for various distances. - Predictive Pace & Training Pace: Smart forecasts to help you train better. - Apple Watch Standalone Metronome & Intervals: Pro features on your wrist. - Watch Display Customization: Choose and reorder the metrics shown on your Apple Watch during runs. - Early Access: Be the first to try all upcoming features. Discover the joy of running with Calc Run today. Document your journey, build a habit that lasts, and take your first step toward a better you. Download now! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Forerunner
This app helps runners improve performance with VDOT analysis and condition management. Track progress, adjust training, and monitor fatigue to prevent injuries and run smarter. It offers customizable data analysis and home screen widgets for easy access to your running records.
- VDOT-based precision analysis
- Customizable periodic analysis
- Fatigue & condition monitoring
- Home screen widgets
- Full VoiceOver support
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Running Tracker: Forerunner goes beyond simple run tracking, helping runners achieve sustainable growth through VDOT, sleep, hrv, training load analysis and systematic condition management. Track your records, adjust your training intensity, and manage your physical condition scientifically. [Key Features] Running Readiness Monitoring - Check your body's fatigue and condition alongside your daily run logs. Combine data with your physical intuition to prevent injuries and maintain optimal training levels. VDOT-Based Precision Analysis - Precisely measure your current condition and skill level based on VDOT, a scientific performance metric, and track real-time changes with every run. Customizable Periodic Analysis - Deeply analyze your running data by setting flexible periods such as weekly, monthly, or yearly. Various Widget Support - Conveniently check your monthly mileage or recent records right from your home screen without opening the app. Full Accessibility - With full VoiceOver support, every user can experience the app equally. Running Tracker: Forerunner is the ultimate tool for runners aiming for higher goals through data. From beginners to marathoners, we're here to make every day’s run smarter and healthier. --- Privacy Policy: https://selfovercoming.app/forerunner/privacy Terms of Service: https://selfovercoming.app/forerunner/terms
Screenshots
Verdict
The clearest difference is ads: Forerunner at none against Calc Run's shown. Forerunner also leads on update cadence (every 3 days vs every 9 days). Calc Run's advantage is iOS requirement (17.6 vs 26.0). On price, rating, review sentiment and ratings volume 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. Calc Run sells 3 in-app purchases, starting at $1.99 per month and Forerunner sells 5 in-app purchases, starting at $4.99 per 7 days. 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 Calc Run against 5.0 for Forerunner. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews are what separate them: 92% of Calc Run's written reviews are positive against 100% of Forerunner's.
Calc Run ships an update every 9 days, Forerunner every 3 days. The most recent releases landed on September 22, 2026 and July 26, 2026 respectively.
| Parameter | Calc Run | Forerunner |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) | 5.0 (3 ratings) |
| Positive reviews | 92.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 — better | 3 |
| Update frequency | Every 9 days | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, Apple Watch | iPhone, iPad, Apple Watch — better |
| Requires iOS | 17.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 63 MB | 55 MB |
| Age rating | 4+ | 12+ |
| Developer | PacoStudio | Forerunner |
Customer experience
Calc Run
Forerunner
In-app purchases
Calc Run
- Monthly Subscription$1.991 Month
- Yearly Subscription$17.991 Year
- Lifetime Subscription$29.99
Forerunner
- Weekly$4.997 Days
- Monthly$9.991 Month
- Yearly7 Days trial$29.991 Year
- Lifetime$49.99
- Lifetime$99.99









