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Mobile AI Fitness
The final evolution
of training intelligence

ARCYN translates every session into the next move with zero filler.

Explore features
Runner’s LabPeak ClubIron CollectiveTempo CrewHybrid HQCoachNetEndurance LabMetronomePaceForgeThreshold Co.LiftLabStrideWorksVelocity HubPeak TempoForm FoundryAthleteOSMarathon MastersPowerStrideElite EngineCadence Co.Speed SyndicateForm FlowPR PursuitChampion’s CircleThe Recovery RoomTrack TribeGear GridRunner’s LabPeak ClubIron CollectiveTempo CrewHybrid HQCoachNetEndurance LabMetronomePaceForgeThreshold Co.LiftLabStrideWorksVelocity HubPeak TempoForm FoundryAthleteOSMarathon MastersPowerStrideElite EngineCadence Co.Speed SyndicateForm FlowPR PursuitChampion’s CircleThe Recovery RoomTrack TribeGear GridRunner’s LabPeak ClubIron CollectiveTempo CrewHybrid HQCoachNetEndurance LabMetronomePaceForgeThreshold Co.LiftLabStrideWorksVelocity HubPeak TempoForm FoundryAthleteOSMarathon MastersPowerStrideElite EngineCadence Co.Speed SyndicateForm FlowPR PursuitChampion’s CircleThe Recovery RoomTrack TribeGear GridRunner’s LabPeak ClubIron CollectiveTempo CrewHybrid HQCoachNetEndurance LabMetronomePaceForgeThreshold Co.LiftLabStrideWorksVelocity HubPeak TempoForm FoundryAthleteOSMarathon MastersPowerStrideElite EngineCadence Co.Speed SyndicateForm FlowPR PursuitChampion’s CircleThe Recovery RoomTrack TribeGear Grid

Built for momentum

Minimal taps. Maximum signal. Everything tuned for the way you actually train.

AI Coach

Post‑workout breakdowns and next steps—grounded in your trends.

Fast Logging

Templates, auto‑progressions, and smart defaults cut admin.

Trend Cards

See what's rising, plateauing, or slipping—at a glance.

Private by Design

Your data stays yours. We don't sell it. Ever.

Lightweight

No calorie micromanagement. Focus on training that matters.

iOS First

Haptics, widgets, and a snappy feel that gets out of your way.

From workout → insight

ARCYN turns raw sessions into clear next steps—every time.

FAQ
LoggerToday • Push
Bench4×6 @ 82.5kg
DB Row3×10 @ 32kg
DipsBW 3×AMRAP

Log with quick templates.

Trends4 weeks
VO₂ est.
+3.2%
10K pace
-11s/km
HR drift
↓ 6%
TempoLong runStridesLactateZ2 Base

ARCYN analyzes multi‑week trends.

CoachToday
Focus
Tempo 5×6m
Load
+4% wk/wk
Recommendations
  • Open at 4:45/km, build to 4:30/km
  • Cap HR at 172 (Z4 floor)
  • Finish with 8×10s strides
Next up: Recovery jog~52m

Get next‑step guidance in seconds.

Real progress, less guesswork

Consistency compounds when your next move is obvious.

“10K PR in six weeks—trend snapshots showed exactly what to tweak.”

Sam • Runner

“Post‑workout summaries feel like a coach texting me what matters.”

Ava • Strength

“Clean, fast logging. Less admin, more training.”

Leo • Hybrid

Be an early member

Help shape ARCYN and get first access to new features.

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FAQ

Which platforms?▾

iOS first. Android is on the roadmap.

Do I need to track food?▾

No. ARCYN focuses on training data and turns it into guidance.

How does AI Coach work?▾

After each workout, ARCYN summarizes trends, flags plateaus, and suggests next steps.

Is my data private?▾

Yes. Your data stays yours—we never sell it.

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