Norwegian 4x4 Protocol vs Stadium Chasers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Norwegian 4x4 Protocol
This app guides you through the Norwegian 4x4 interval training protocol to improve your VO2 max and cardiovascular fitness. It offers customizable warm-up and cooldown durations, voice guidance for intervals, and integrates with Apple Watch for heart rate and calorie tracking.
- Norwegian 4x4 workouts
- Voice guidance for intervals
- Apple Watch heart rate tracking
- Calorie tracking
- Save workouts to Health app
- No sign-in required
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Get started with Norwegian 4x4 interval training. Norwegian 4x4 Protocol: Boreas makes it easy to get started with the Norwegian 4x4 protocol. Just select warm-up and cooldown duration, and the app handles the rest. You can connect an Apple Watch to track your heart rate and calories. The app supports voice guidance to let you know when the interval is about to end and when the next interval starts. Features: • Perform Norwegian 4x4 workouts. • Know when the next interval starts while the app is in the background with voice guidance. • Get current heart rate, heart rate zone and calories from your Apple Watch. • Save your workouts to the Health app. • No sign-in is required. Norwegian 4x4 Protocol: Boreas is a HIIT interval timer for improving cardio, which is relevant if you're training for 5k, 10k, half marathon, marathon, improving VO2 max or general fitness. If you have a suggestion for how to improve Norwegian 4x4 Protocol: Boreas, feel free to contact the App Support email. Always consult with a healthcare provider before starting any new exercise program. Exercise can carry risks, especially for people who have certain medical conditions or who have not been physically active in a long time. It's important to understand that using this app does not replace a doctor's advice or treatment. Terms of use for Norwegian 4x4 Protocol: Boreas: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Stadium Chasers
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Every ballpark has a story. Stadium Chasers helps you track where you’ve been, remember the moments, and plan your next stop. TRACK YOUR BALLPARK JOURNEY • Log visits to MLB, MiLB, spring training, college, international, historic, and other ballparks. • See your progress toward visiting all 30 MLB parks and beyond. • Build a wishlist and set season goals. SAVE THE MEMORIES • Add dates, photos, notes, and memories to each visit. • Create a personal ballpark history you can revisit anytime. • Share milestones and progress with friends. PLAN YOUR NEXT CHASE • Explore ballpark guides, maps, seating, food, travel tips, accessibility information, and more. • Read reviews and tips from other fans. CONNECT WITH OTHER CHASERS • Follow public profiles and activity in the Social feed. • Share reviews, tips, and memories. • Join game-day chats with fans at the same ballpark. Whether you’re chasing all 30 MLB parks, exploring the minors, or keeping track of the places that made baseball unforgettable, Stadium Chasers keeps the journey in one place. Stadium Chasers is an independent fan-created app and is not affiliated with or endorsed by Major League Baseball, Minor League Baseball, any team, league, or venue.
Screenshots
Verdict
The clearest difference is in-app purchases: Stadium Chasers at none against Norwegian 4x4 Protocol's 2. Stadium Chasers also leads on update cadence (every 4 days vs fortnightly) and iOS requirement (14.0 vs 16.6). On price, ads and device support 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. Norwegian 4x4 Protocol sells 2 in-app purchases, starting at $8.99 per 7 days. Stadium Chasers asks for nothing beyond the download.
Norwegian 4x4 Protocol ships an update fortnightly, Stadium Chasers every 4 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.
| Parameter | Norwegian 4x4 Protocol | Stadium Chasers |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (66 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 66 — better | — |
| Update frequency | Fortnightly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 16.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 23 MB |
| Age rating | 4+ | 12+ |
| Developer | Havard Tryman | Stadium Chasers LLC |
In-app purchases
Norwegian 4x4 Protocol
- Pro3 Days trial$8.997 Days
- Pro$24.991 Year
Stadium Chasers
No in-app purchases
Questions
Is Norwegian 4x4 Protocol free?
Is Stadium Chasers free?
Do Norwegian 4x4 Protocol or Stadium Chasers have ads?
Which is updated more often, Norwegian 4x4 Protocol or Stadium Chasers?
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