Can you recommend cycling training apps for a triathlete who wants interval plans, wearable sync, and performance analytics?

Absolutely — for a triathlete, the best cycling training apps are usually the ones that combine:

• structured interval plans
• sync with Garmin/Apple Watch/Wahoo/TrainerRoad/Strava, etc.
• performance analytics like power, heart rate, training load, TSS, and progress tracking

Here are some strong options:

Best overall picks

1) TrainerRoad

Best for: serious bike-focused triathletes who want highly structured interval training
Why it stands out:

• Excellent adaptive cycling plans
• Deep power-based interval workouts
• Strong performance analytics: FTP progression, training load, workout compliance
• Syncs with many devices/services, including Garmin, Wahoo, Zwift, Strava, and smart trainers Tradeoff: more bike-centric than triathlon-centric, and less “social” than Strava/Zwift

2) TrainingPeaks

Best for: triathletes who want a full endurance training hub
Why it stands out:

• Great for custom interval plans from coaches or self-built plans
• Strong multi-sport support: swim, bike, run
• Excellent analytics: power, HR, training stress, PMC charts, load tracking
• Syncs broadly with Garmin, Apple Watch, Wahoo, Zwift, Strava, and many others Tradeoff: the interface and features can feel a bit complex, and some advanced tools are paid

3) Zwift

Best for: athletes who want structured workouts plus motivation and indoor riding engagement
Why it stands out:

• Built-in workout plans and interval sessions
• Syncs with smart trainers, power meters, HR monitors
• Good ride analytics and training history
• Strong ecosystem for indoor cycling Tradeoff: analytics are good, but not as deep as TrainingPeaks/TrainerRoad

Other good options

4) Wahoo SYSTM

Best for: athletes who want varied workouts and bike-focused training with some cross-training

• Interval-based training plans
• Good device sync with Wahoo ecosystem and others
• Useful performance tracking
• Includes strength, mobility, and mental training components

5) Intervals.icu

Best for: data-driven athletes who want powerful analytics at low cost

• Excellent training metrics, charts, and trend analysis
• Can build and track interval workouts
• Syncs with Strava, Garmin, TrainingPeaks, etc. Tradeoff: more analytical and less polished as a guided training app

6) Garmin Connect + Garmin Coach / Daily Suggested Workouts

Best for: athletes already using Garmin watches or bike computers

• Automatic workout suggestions
• Good device sync
• Solid basic analytics Tradeoff: less advanced for custom cycling plans than TrainerRoad or TrainingPeaks

My recommendations by use case

• Best for structured bike intervals: TrainerRoad
• Best for triathlon planning across swim/bike/run: TrainingPeaks
• Best for indoor motivation + workouts: Zwift
• Best budget analytics option: Intervals.icu
• Best if you’re all-in on Garmin: Garmin Connect

Quick shortlist

If you want just 3 to compare:

1. TrainingPeaks — best all-around triathlon training management
2. TrainerRoad — best cycling interval quality and adaptation
3. Zwift — best for indoor training experience

If you want, I can also make a side-by-side comparison table based on your device ecosystem, budget, and whether you train mostly indoors or outdoors.