Frequently Asked Questions
Answers to the most common questions about Aidrian.
About Strava Integration
Is Strava integration required?
Yes. Aidrian currently retrieves workout data through Strava integration. If you don't have a Strava account, you can create one for free.
Which devices are supported?
Any device that syncs with Strava will work. This includes Garmin, COROS, Suunto, Polar, Apple Watch, and other major running watches.
What Strava data does Aidrian use?
We retrieve pace, distance, heart rate, cadence, and other metrics from your running activities. We only access the minimum data necessary, with privacy in mind.
Are other integrations planned?
We're considering direct Apple Health and Garmin Connect integration in the future. We're starting with Strava integration first.
About Pricing
What happens after the free trial?
After the 14-day free trial, you'll be automatically subscribed to the Pro plan. You can cancel anytime during the trial, and you'll be moved to the Free plan.
Can I cancel anytime?
Yes. You can cancel the Pro plan at any time. After cancellation, you'll switch to the Free plan at the next renewal date. Your training history and data will be preserved.
About Training
Can I switch theories midway?
Yes. You can change your selected theory at any time. Pace zones and intensity metrics will be recalculated. Your training history is preserved as shared data, so nothing is lost.
Can beginners use Aidrian?
Yes. The AI analyzes your current fitness level and suggests appropriate workouts. Aidrian supports everyone from beginners to serious runners.
Which theory should I choose?
For marathon focus: Pfitzinger or Hansons. For 5K to half marathon versatility: Jack Daniels. For simple intensity management: 80/20 Running. For advanced threshold development: Norwegian Method. For ultramarathons (50K+): Aidrian Ultra. For mountain trail races: Aidrian Mountain Trail.
How does the AI decide my workout?
Aidrian combines four data streams: (1) Wellness data (resting heart rate, HRV, sleep score), (2) Training data (weekly volume, ACWR, estimated VO2max), (3) Goals (race date, target time, selected theory), and (4) the selected theory's phase structure and zone definitions. Based on these inputs, it prescribes your optimal workout every morning.
About Metrics & Terms
What is ACWR?
ACWR (Acute:Chronic Workload Ratio) is the ratio of your current week's training load to your 4-week rolling average. The optimal zone is 0.8-1.3; values above 1.5 indicate elevated overtraining and injury risk. Aidrian continuously monitors ACWR and automatically suggests recovery workouts when it exceeds 1.3.
What is VO2max?
VO2max (maximal oxygen uptake) measures the maximum amount of oxygen your body can use per minute per kilogram of body weight (ml/kg/min). It is the primary indicator of aerobic fitness. Recreational runners typically range 35-50 ml/kg/min, while elite runners reach 60-85 ml/kg/min. Aidrian estimates your VO2max from workout data and tracks it as a key growth metric.
What is HRV (Heart Rate Variability)?
HRV (Heart Rate Variability) is the variation in time intervals between successive heartbeats, measured in milliseconds. Higher HRV indicates better autonomic nervous system balance and recovery. Aidrian uses HRV as a primary input for readiness scoring and automatically reduces workout intensity when HRV is low.
Other
Is there an English version?
Yes. Japanese and English versions launch simultaneously.
Which platforms are supported?
We're launching as an iOS app first. Android support is under consideration for future releases.