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Intervals (intervals.icu) Review

Worth it

Should I use Intervals (intervals.icu)?

Training analytics and AI analysis for endurance athletes - intervals.icu

· 1 day ago

Use it if you self-coach in cycling, running, or triathlon and want deep, free analytics. Skip it if you want guided coaching, a polished mobile app, or formal security guarantees.

Confidence

Medium. Based on ~9 usable public sources. Caution: most 'Intervals' search results describe an unrelated project-management tool or a metal band; intervals.icu pricing was not verifiable in reviewed sources.

Ratings

  • Value for money
  • Ease of use
  • Feature depth
  • Support quality
  • Security posture

Pricing

Not disclosed

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed

Best for

  • Self-coached cyclists and runners
  • Data-driven triathletes
  • Garmin/Strava users wanting deeper analysis
  • Budget athletes replacing paid platforms

Not for

  • Athletes wanting a human coach or guided plans
  • Anyone expecting a polished mobile-first app
  • Teams shopping for workplace software (unrelated same-name PM tool exists)
  • Buyers needing formal vulnerability disclosure or support SLAs

Gotchas - check before you buy

medium

A user had to publicly ask where to report vulnerabilities; disclosure path unclear

low

Support runs through a community forum; expect volunteer-paced answers, not guarantees

low

Migrating from a shut-down platform (Today's Plan) relied on community guidance

Pros and cons

Pros

  • Runners on Reddit call it great for training analysis
  • Chosen as successor when Today's Plan shut down
  • Actively developed: Fitbit/Google Health integration shipped May 2026
  • AI analysis covers fitness, fatigue, and activity trends
  • Strong word-of-mouth among competitive cyclists

Cons

  • DIY analytics only; no adaptive coaching or guided plans
  • Users must publicly ask where to report security vulnerabilities
  • Some indoor-trainer apps lack direct sync; users improvise

Sources & method

- 9 sources - No known vulnerabilities found in the sources reviewed.

official x2review x5security x1news x1

Key stats

  • Value for money: 5/5

    Rating

  • Not disclosed

    Starting price

  • 9

    Sources

  • Analyzed

  • Value for money: 5/5. Donation-supported; effectively free (public knowledge)
  • Ease of use: 3/5. DIY analytics; steeper than coach-led apps
  • Feature depth: 5/5. Deep metrics, AI analysis, growing integrations
  • Support quality: 3/5. Community forum only; no formal SLA
  • Security posture: 3/5. Security page live; no public disclosure path
  • $0 Price Donation-supported (public knowledge)
  • Active forum Community Daily threads on features, AI, integrations
  • Garmin, Fitbit, more Integrations Fitbit/Google Health added May 2026

Pricing

Not disclosed

Security

No known vulnerabilities found in the sources reviewed.

What users say

Endurance athletes on Reddit and the product's own forum describe intervals.icu as a great, deeply capable DIY training-analytics tool that is actively improved.

“Intervals.icu is a great…”
Reddit, r/NorwegianSinglesRun
Full analysis

Based on ~9 usable public sources. Caution: most 'Intervals' search results describe an unrelated project-management tool or a metal band; intervals.icu pricing was not verifiable in reviewed sources.

Free, deep training analytics for self-coached endurance athletes; wrong pick if you want guided coaching or polish.

Methodology

Based on ~9 usable public sources. Caution: most 'Intervals' search results describe an unrelated project-management tool or a metal band; intervals.icu pricing was not verifiable in reviewed sources.

Read how a report is made.

Sources

  1. Intervals.icu Taper Question - Reddit r/NorwegianSinglesRunreddit.com
    review
  2. Seriously how good is Intervals.icu - Reddit r/Veloreddit.com
    review
  3. Today's Plan shutting down, suggesting intervals.icu as alternativeforum.intervals.icu
    news
  4. New Fitbit API (Google Health) integrationforum.intervals.icu
    official
  5. Intervals.icu AI Analysistrainingdojo.app
    review
  6. Theron vs. Intervals.icu (2026): Adaptive Coach vs DIY Analyticstheron.app
    review
  7. Need an alternative to MyWhoosh that links to Intervals.icureddit.com
    review
  8. Inquiry About Security Contact for Vulnerability Reportforum.intervals.icu
    security
  9. Product security pageintervals.icu
    official

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