Forge is in open beta. Train with the first cut and help shape what gets built next. Join on TestFlight →
Private by design

Your AI strength coach,
forged on-device.

Forge turns how you actually trained into a smarter next program. Hand it to the AI of your choice or let Forge build the phase itself. No accounts. No servers. No tracking.

Join the TestFlight beta →
iPhone Apple Watch Free in beta
3iPhone · Watch · Widget
0Servers · accounts · trackers
100%On-device
9:41Forge · ▮▮▮

Today

Phase 6 · Push / Pull / Legs
Plan · Chest and triceps
Incline Barbell Press4 × 6–8
Hammer Chest Press3 × 8–10
Weighted Dips3 × 6–10
Cable Pressdown3 × 12–15
Rest 1:12 ♥ 138 bpm

Incline Barbell Press

3 of 4 sets · 60 kg · 6 to 8 reps
Set 1 60 kg × 8
Set 2 60 kg × 7
Set 3 60 kg × 6
Set 4 60 kg × 6 skip
Plates per side · 20 kg bar
1 × 20   2 × 2.5

Progress

Incline Barbell Press · ALL
5 weeks agonow · 60 kg
Forge noticed
Bench progressed 50 to 60 kg. Consistently hitting your rep range. Ready for more load.

AI Coach

From your last 5 weeks
Trained 3.4×/week over 5 weeks.
Squat stalled at 100 kg for 4 sessions.
Often dropped weight on later OHP sets (fatigue).
Noted: "left knee twingy on lunges."
Or build it in Forge.
What makes it smart

It learns from how you really train.

Most trackers just store numbers. Forge reads them. Adherence, progress, stalls, fatigue, your own notes. The result is a better next block.

Reads your real training

Analyses your last five weeks across every program and writes plain-English insights. What progressed, what stalled, where you ran out of gas.

Learns from your notes

Jot a niggle or "felt strong" on any exercise and Forge folds it into your next program. Tiny inputs, smarter output.

Progression that adapts

Double-progression done right. Targets follow the weight you actually completed your reps at. Drop a set, skip a set, carry it forward. It keeps up.

Rest timer, everywhere

In the app, the Dynamic Island, the Lock Screen and a Home Screen widget. Never miss a rest cue again, even with your phone face down.

Wrist-native

Start on your phone. Your Apple Watch auto-records heart rate and reps, then saves the session straight to Apple Fitness. Phone stays in charge.

Knows your gym

A plate calculator loaded with the plates your gym actually stocks, per-side or total, so you never do bar math mid-set.

The AI coach

Your numbers become a prompt that writes itself.

Tick the insights that matter, add your goals and injuries, and Forge assembles a coach-grade brief. Paste it into the assistant you already use. Or let Forge build the block in-app. Nothing leaves your device unless you send it — to the AI you choose, or your own encrypted iCloud backup.

Claude ChatGPT Gemini Or Forge's own builder
Behavioural insights Goals and injuries Editable and curated
# Write my next 4-week phase.
Goal: build muscle · 4 days/wk · 60 min
Level: intermediate · commercial gym
Injuries: left knee. Easy on deep lunges.

# From my last 5 weeks (Forge):
• Trained 3.4×/week.
• Bench 50 to 60 kg. Squat stalled at 100 kg.
• Falling short of rep target on OHP.
• High chest and back volume. Little direct quad work.

→ Progress what's working. Fix the squat stall.
   Balance my legs. Keep it knee-friendly.
Live activity

Rest timer on every surface.

One timer, four places to read it. Forge keeps your eyes off the screen and your hands free.

1:12 ♥ 138
Dynamic Island

Tap to expand for the full set and target.

FORGE · REST
1:12 · Set 4 next
Lock Screen

Glanceable countdown without unlocking.

REST
1:12
Incline BB Press · Set 4
Home Screen widget

Pin the current set. Tap to jump back in.

Try it live

The plate calculator. Working.

A taste of the in-app math. Punch in a target. Forge shows exactly what to load per side.

Progress you can feel

Every lift, charted.

Tap any exercise to see weight and reps over time. Data-bearing lifts first. The rest tucked below.

JanFebMarAprMay+18% est. 1RM
What's next

The roadmap.

Shipping in beta order, paced against real user feedback. Want one of these to land sooner? Tell me in the TestFlight feedback panel.

NEXT
End-of-phase wrap-up

PRs, streaks and achievements, then plan your next block in one tap. Light gamification, no slot-machine nonsense.

NEXT
Training profile

A guided, injury-aware onboarding that pre-fills your goals and constraints, then feeds both the AI and the in-app builder.

NEXT
Start sets from your Watch

Start and finish a set from the Watch, Lock Screen and widgets. Live reps shown 3 / 8 as you go.

SOON
Interactive 3D muscle map

Rotate the body, tap a muscle group, see your data for that muscle. Plain English, no anatomy degree required.

SOON
HD exercise animations

A licensed exercise-animation library so you never wonder what a Meadows Row looks like mid-warmup.

LATER
Forge Pro

Bring your own AI key, encrypted iCloud backup and RPE-based autoregulation. Then App Store launch.

Under the hood

Native, top to bottom.

No cross-platform shortcuts. Pure Apple frameworks, so it's fast, offline and at home on the platform.

SwiftSwiftUISwiftData HealthKitWatchConnectivityCoreMotion ActivityKit · Live ActivitiesWidgetKitSwift Charts App IntentswatchOS
Now in beta

Be one of the first to forge with it.

Forge is in open beta on TestFlight. Free, no commitment. Jump in, train with it and help shape what gets built next.

Join the TestFlight beta →