# Zarkus — AI training for your goal race

> AI training for your goal race (iPhone/iPad app by Javier Ruiz Salvador.)

- Source: https://appshunter.io/ios/app/zarkus/id6773069265 (this page in markdown: same URL + `.md`)
- Developer: [Javier Ruiz Salvador](https://appshunter.io/developer/6773069267)
- Category: Health & Fitness, Sports
- Price: Free
- Age rating: 4+
- Requires: iOS 16.0 · 40 MB
- Languages: American English
- Released: 2026-07-01
- Data updated: 2026-07-28
- User reviews in markdown: https://appshunter.io/ios/app/zarkus/id6773069265/reviews.md

## What is Zarkus?

Zarkus builds your marathon, half marathon, or 10K training plan around your goal race — not a generic template.

Every plan is generated by AI trained on sport science principles: periodisation, lactate threshold, training load, and recovery. Your plan adapts week by week based on your actual training data.

WHAT YOU GET
• A full training plan from today to race day
• Daily workouts with pace, distance, and structure (warm up, intervals, cool down)
• Training load tracking so you never overtrain
• Garmin sync — your activities are automatically matched to planned workouts
• Compliance scoring — see how well you executed each session
• Analytics: load adherence, performance trajectory, best efforts
• Race day preparation: pacing strategy and km-by-km race plan

BUILT ON SPORT SCIENCE
Zarkus uses the same principles as Olympic-level coaches: progressive overload, periodised phases (base building, build, peak, taper), and recovery cycles. No guesswork — just structured training that works.

ONE PLAN. ONE PAYMENT.
Pay once per race. No subscriptions, no monthly fees. Train for your race, then decide if you want another plan.

WHO IT'S FOR
Intermediate runners targeting a personal best. You've run before, you train consistently, and you want a plan that takes your race seriously.


## Version history (last 4 releases)

### 1.5.0 — 2026-07-21

What's new in 1.5.0

• Strength days, reimagined — every strength and core session now comes with a clear exercise list and animated demos so you always know how to perform each movement.
• Tell your coach your week — when you regenerate your plan, just describe your availability in your own words and your coach adapts around it.
• Smarter race-day fueling — your race strategy now factors in your weight and gel experience for a nutrition plan tailored to you, and highlights every key point along the course.
• Complete as planned — mark a session as done exactly as prescribed and we'll trust the plan's targets, no manual entry needed.
• Clean up your calendar — long-press or use the new menu to delete an activity or a planned workout; your metrics update automatically.
• Stability and reliability improvements.

### 1.4.0 — 2026-07-13

What's New in 1.4.0

• Smarter AI Coach — now remembers your training history, adapts your race strategy, and gives personalized nutrition and fueling guidance for long runs
• New strength sessions with real, guided exercises built into your weekly plan
• Your training plan now automatically re-adjusts as your fitness evolves — no more stale plans
• Fixed training zones: easy runs now correctly map to Zone 2, with more accurate zone labels throughout the app
• Improved Apple Watch workout sync
• Various bug fixes and stability improvements

### 1.3.0 — 2026-07-06

What's New in 1.3.0:

• Apple Watch support — send your workouts directly to your watch and train hands-free
• AI-powered feedback after every workout, right in your training log
• Manually regenerate your training week when your schedule changes
• Refreshed onboarding experience
• Calendar view now color-codes workouts by type for quicker planning
• Various bug fixes and performance improvements

### 1.2.0 — 2026-07-01

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-28.*