V.O2 review

V.O2 is built on the VDOT method from coach Jack Daniels and is aimed at runners who already train. It rates your current running fitness as a VDOT score, sets training paces from it, and adjusts the plan as you improve and as you give feedback. It focuses on training rather than tracking: runs come in from Apple Health, COROS, Garmin or Strava, and workouts with pace targets go out to Apple Watch, COROS or Garmin. You can choose the Adaptive Trainer, buy a single goal race plan or match with a private coach. On the US App Store, Adaptive Training costs $12.99 a month or $99.99 a year after a 14-day trial, and one-off plans run from $44.99 for an 8-week base plan to $99.99 for a 24-week marathon. Beginners will find the terms and pace zones harder than Runna's approach.

Who it is for

experienced runners who want VDOT-based paces

Price

Adaptive Training $12.99 a month or $99.99 a year on the US App Store; goal race plans from $44.99; 14-day free trial of the Adaptive Trainer.

Adaptive Training Subscription $12.99 Adaptive Training - Annual $99.99
Quoted from the vendor pricing page on November 11, 2026.

Key features

• Assesses running fitness as a VDOT score
• Personalized training paces built in
• Adaptive training that adjusts as you improve
• Syncs GPS data from Apple Health, COROS, Garmin and Strava
• Pushes workouts and pace targets to Apple Watch, COROS and Garmin

Strengths and weaknesses

• Strength: Based on Jack Daniels' published training methodology
• Strength: One-off goal race plans for buyers who do not want a subscription
• Strength: Option to match with a private coach
• Weakness: Aimed at training, not tracking, so it needs a watch or another tracker
• Weakness: The VDOT terms take some learning
• Weakness: $12.99 a month is high for runners new to the sport

Key facts

• Adaptive Training: $12.99/mo or $99.99/yr
• Race plans: From $44.99 (8-week base)
• Free trial: 14 days of Adaptive Trainer
• Method: Jack Daniels' VDOT

Where it ranks

V.O2 is No. 8 in our Best Running Apps verdict.