Comparison

Boost VO2 vs SwimTracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Boost VO2

Features
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Boost your VO2 max and running performance with the Norwegian 4x4 interval training method. WHAT IS 4X4 TRAINING? The Norwegian 4x4 method consists of 4-minute high-intensity intervals followed by 3-minute recovery periods, repeated 4 times. This training protocol has been extensively researched and proven to significantly improve VO2 max and aerobic capacity. KEY FEATURES: Personalized Training Plans Create custom 4x4 training programs based on your fitness level Choose from 4-8 week plans with 1-4 workouts per week Get estimated VO2 max improvements for your specific plan Guided Workout Experience Audio coaching with clear interval timing and instructions Visual cues and haptic feedback during workouts Automatic phase transitions (warmup, intervals, recovery, cooldown) Voice coach selection for personalized motivation PERFECT FOR: Runners looking to improve aerobic capacity Athletes training for endurance events Fitness enthusiasts wanting to boost VO2 max Anyone following the Norwegian 4x4 method WHY CHOOSE BOOST VO2? Unlike generic interval training apps, Boost VO2 is specifically designed for the Norwegian 4x4 protocol. Our app provides the exact timing, structure, and guidance needed to maximize your VO2 max improvements through this proven training method. Start your journey to better aerobic fitness today with Boost VO2 - the ultimate 4x4 interval training companion.

About

SwimTracker

Features
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Préparez vos baignades, suivez vos performances et nagez en toute confiance. SwimTracker est le compagnon des nageurs en eau libre. Consultez les conditions de baignade avant d'entrer dans l'eau, enregistrez vos sessions et retrouvez toutes vos performances au même endroit. Avant votre baignade • Température de l'eau • Température de l'air • Hauteur des vagues • État de la zone • Alertes méduses à proximité Les données météo sont fournies par Open-Meteo Marine. Les observations de méduses proviennent d'ACRI Méduse, d'iNaturalist et de la communauté SwimTracker. Suivi de vos sessions • Distance parcourue • Durée • Fréquence cardiaque • Calories brûlées • Historique complet • Records personnels Apple Watch et Apple Santé Importez facilement vos séances enregistrées avec votre Apple Watch et Apple Santé pour retrouver l'ensemble de votre historique dans SwimTracker. Contribuez à la communauté Signalez la présence de méduses et consultez les observations des autres utilisateurs pour choisir votre zone de baignade en toute sérénité. Pensé pour la nage en eau libre Que vous nagiez en Méditerranée, dans l'Atlantique, dans un lac ou partout ailleurs dans le monde, SwimTracker vous accompagne avant, pendant et après chacune de vos sorties.

Screenshots

Boost VO24 screens
SwimTracker4 screens

Verdict

The call

Boost VO2 and SwimTracker are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Boost VO2 ships an update every 2 weeks, SwimTracker fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

ScorecardNo meaningful differences
Boost VO2 versus SwimTracker: the parameters behind the verdict, then further details
ParameterBoost VO2SwimTracker
PriceFreeFree
Rating4.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 weeks — betterFortnightly
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.115.0 — better
Further details — not scored
Size38 MB35 MB
Age rating4+4+
DeveloperDerinbogaz VenturesJulien Rosati

In-app purchases

None

Boost VO2

No in-app purchases

None

SwimTracker

No in-app purchases

Questions

Is Boost VO2 free?
Boost VO2 is free to download, with no in-app purchases.
Is SwimTracker free?
SwimTracker is free to download, with no in-app purchases.
Do Boost VO2 or SwimTracker have ads?
Neither Boost VO2 nor SwimTracker shows ads.
Which is updated more often, Boost VO2 or SwimTracker?
Boost VO2 ships an update every 2 weeks, and SwimTracker fortnightly. Most recently, Boost VO2 was updated on October 24, 2026 and SwimTracker on October 25, 2026.

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