Run Tracker vs NSA Running
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Run Tracker
This app helps runners understand their training by analyzing data like training load, heart rate zones, and progress. It provides clear insights and warnings to prevent overtraining and ensure effective workouts.
- Training load analysis
- Heart rate zone tracking
- Progress visualization
- VO2 max trends
- Automatic route matching
- Personal records
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Kiiro – Understand Your Training Not sure if you're training too hard — or not hard enough? Most apps show you data. Kiiro explains what it means. Whether you're building toward a goal or just trying to stay consistent without getting injured, Kiiro tracks your training load, zones, and progress — and tells you what to do about it. AM I TRAINING TOO HARD? See your training load build over time — recent effort vs. long-term fitness. Know when to push and when to rest. No sports science degree required. ‣ Acute vs. chronic training load ‣ Weekly and monthly trends ‣ Clear warnings before you overdo it AM I ACTUALLY IMPROVING? Compare every run on the same route. See your progress in pace, heart rate, and effort — proof that your training is working. ‣ Automatic route matching ‣ Personal records highlighted ‣ Visual charts show trends over time AM I IN THE RIGHT ZONES? Easy runs should be easy. Hard runs should be hard. Kiiro shows exactly how much time you spend in each zone — and whether it matches your goals. ‣ Aerobic vs. anaerobic breakdown ‣ Zone trends over weeks and months ‣ Spot polarized training gaps METRICS THAT MATTER VO2 max trends, resting heart rate, HRV, cadence, ground contact time, detailed splits and maps. GOALS & HISTORY Set targets. Track streaks. Review your full training history with trends and summaries. Syncs automatically with Apple Watch through HealthKit. No manual uploads. No extra hardware. For runners who want to understand their training — not just track it.
NSA Running
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Run Smarter (and harder) with the Norwegian Singles Approach (NSA) Calculate personalized training paces based on the proven Norwegian Singles Approach. Science-backed paces tailored to your fitness. WHAT YOU GET - Sub-threshold interval paces (3, 6, 10 minute reps) - Easy running pace that's actually easy - Distance-based equivalents (800m, 1600m, 2km+) - Race predictions (5K, 10K, Half Marathon, Marathon) - Training structure guidance WHY IT WORKS - 3 sub-threshold workouts per week - Truly easy running on other days - One long easy run weekly - No brutal VO2 max intervals - Sustainable intensity Build fitness without burnout. Quality volume while staying fresh. THE SCIENCE Based on elite Norwegian methods, adapted for everyday athletes by James Copeland. Sub-threshold training just below lactate threshold maximizes gains sustainably. FEATURES INSTANT PACE CALCULATOR Enter 5K time, get personalized paces. Time-based and distance-based options. Heart rate guidance included. TRAINING GUIDANCE Weekly structure, rest intervals, heart rate tips, adjustment strategies. EDUCATION Interactive tutorial, comprehensive FAQ, race prep guidance. PERFECT FOR Competitive runners, intermediate/beginner runners, recreational athletes, former cyclists/triathletes, 4-8 hour/week training volume. HOW IT WORKS 1. Enter 5K time 2. Get personalized paces 3. Follow: Easy → Sub-T → Easy → Sub-T → Easy → Sub-T → Long 4. Time trial every 4-6 weeks 5. Update and improve BEAUTIFULLY SIMPLE No subscriptions. No complicated plans. Just effective training paces. DISCLAIMER Not affiliated with James Copeland. Based on "Norwegian Singles Method: Subthreshold Running Kept Simple." Consult healthcare professional before starting training. Educational purposes only. Purchase the book for complete methodology and detailed plans.
Screenshots
Verdict
The clearest difference is update cadence: NSA Running at every 4 days against Run Tracker's fortnightly. NSA Running also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.0). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Run Tracker ships an update fortnightly, NSA Running every 4 days. The most recent releases landed on August 25, 2026 and January 15, 2026 respectively.
| Parameter | Run Tracker | NSA Running |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Fortnightly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 41 MB | 33 MB |
| Age rating | 17+ | 12+ |
| Developer | endurance101 OÜ | Byoung Hun Min |
In-app purchases
Run Tracker
No in-app purchases
NSA Running
No in-app purchases





