# NSA Running — Norwegian Singles Approach

> Norwegian Singles Approach (iPhone/iPad app by Byoung Hun Min.)

- Source: https://appshunter.io/ios/app/nsa-running/id6756863486 (this page in markdown: same URL + `.md`)
- Developer: [Byoung Hun Min](https://appshunter.io/developer/1863312280)
- Category: Health & Fitness
- Price: Free
- Age rating: 12+
- Requires: iOS 15.1 · 33 MB
- Languages: American English
- Released: 2026-01-11
- Data updated: 2026-01-15
- User reviews in markdown: https://appshunter.io/ios/app/nsa-running/id6756863486/reviews.md

## What is NSA Running?

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.


## Version history (last 2 releases)

### 1.1 — 2026-01-15

New Features


- Multiple Race Distance Input Support

- Manual Pace Adjustments


- Added Book Links


- Added Speed Display for Treadmill Running


- Added Sub-Threshold Pace Ranges


- Fixed Pace Formatting


- Fixed hours not resetting when switching from longer to shorter race distances



- Enhanced pace calculation accuracy across all training zones
- Improved visual consistency in pace displays

### 1.0 — 2026-01-11

No release notes.

## Related topics

[nsa running](https://appshunter.io/ios/topics/nsa-running)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-01-15.*