v1.0   ·   iPhone & Apple Watch

Train
smarter.
Start free.

An AI-coached workout tracker that learns your patterns, suggests the next session, and keeps your training balanced. 1 month free — every byte stays on your device.

Download on App Store See how it works
1 Month free trial
0 Cloud · No account
2 Devices · iPhone & Watch
Drop IMG_8225 — active session with coach hints
Smart NEXT UP Progressive overload hints Body Balance Estimated 1RM trends AI program generator Apple Watch companion Local-only SwiftData Strong CSV import Smart NEXT UP Progressive overload hints Body Balance Estimated 1RM trends AI program generator Apple Watch companion Local-only SwiftData Strong CSV import
§ 01 — 04 Features

Four moves that change
how you lift.

01 / NEXT UP

Knows what you
should train next.

Gymbell quietly studies your training patterns — frequency, fatigue, time since last hit — and surfaces tomorrow's session before you ask. No spreadsheets, no scheduling.

  • Suggested weights based on your recent sets
  • One-tap to start; reorder anything mid-session
  • Pattern adapts as your routine drifts
Drop start-workout / next-up screen
02 / IN THE ZONE

Coaches you,
set by set.

Stepper controls for reps and weight, progressive overload hints when the bar's ready to move, and an auto rest timer that knows when you're back. Eyes on the lift, not the phone.

  • Real-time hints — push +2.5 kg, hold reps
  • Auto rest timer with smart break detection
  • Big stepper buttons, gym-glove friendly
Drop active-session screen
03 / BODY BALANCE

Train symmetrically.
Progress faster.

A 30-day muscle-group readout reveals what you've been skipping — every back day you skipped, every neglected hamstring. Even pull, even push, even legs.

  • Volume per group, rolling 30 days
  • Flags imbalances before injuries find them
  • Filter by lift family or movement plane
Drop body balance screen
04 / STRENGTH CHARTS

Watch your 1RM
climb, week over week.

Every lift gets an estimated one-rep-max trend line. Plateaus become visible. PRs become inevitable. Tap any session for the sets behind the number.

  • Per-exercise 1RM estimation curves
  • Personal records tagged automatically
  • Compare two lifts side-by-side
Drop strength chart screen
§ 05 Templates & Programs

Your templates,
your way.

Build it by hand —
or let the model
draft a full program.

Hand-craft a template for one workout, or describe your goal and let Gymbell generate a multi-week program tuned to your current lifts, schedule, and experience. Adjust anything; the program adapts.

Hypertrophy Fat loss Strength Endurance Push / Pull / Legs Upper / Lower 5×5 Custom
  • Programs adapt to your current 1RM and recovery
  • Weekly schedule with day-of-week assignments
  • Import existing data from Strong CSV in seconds
Drop templates / programs screen
§ 06 Apple Watch Companion

Leave the phone in
the locker. Lift.

Watch — plan select
Watch — active set

Log sets with the
Digital Crown.

Full companion mode syncs in real time with your iPhone. Track rest, adjust reps with a flick, and breeze through a session without ever pulling your phone out of your bag.

Sync Real-time, bi-directional
Heart rate Live during every set
Rest Auto-advances on movement
Summary On-wrist post-session recap
§ 07 Pricing

Try everything,
free for 1 month.

Monthly $2.99/ month After your 1-month free trial.
  • Every feature, no tiers
  • Cancel anytime in Settings
  • Family Sharing supported
  • Future updates included
Start free trial
Best value
Lifetime $39.99once Pay once. Own forever.
  • Every feature, no tiers
  • All future updates — forever
  • Family Sharing supported
  • No subscription, ever
Buy lifetime

Your data stays
on your device.

Gymbell stores everything locally with SwiftData — no account, no cloud, no harvesting. When you use AI features, your own API key talks to the AI provider directly. We don't have servers because we don't need them.

0Accounts
0Trackers
0Servers
100%On-device
§ 08 Questions & Contact

Anything else
we should answer?

What happens after the 1-month trial?
Nothing surprising. Your trial simply ends and you choose Monthly ($2.99) or Lifetime ($39.99) from inside the app. No auto-charge surprises — the App Store handles billing transparently.
Which AI providers does Gymbell support?
You bring your own API key — currently Apple Intelligence, Claude (Anthropic), OpenAI, and Google Gemini, plus any OpenAI-compatible endpoint. Your key is stored locally in iOS Keychain and used only to call the provider directly.
Can I import data from another app?
Yes — Strong CSV imports are supported out of the box. Drop the file from Files or share it from Strong; Gymbell maps exercises automatically.
Do I need the Apple Watch app to use Gymbell?
No. Gymbell works fully on iPhone alone. The Watch app is a free companion that mirrors the active session for hands-off logging.
How do I get a refund?
Refunds are handled through Apple — open the App Store, tap your profile → Purchase History, then Report a Problem. We're happy to vouch for any genuine issue; just email us first and we'll help.
I found a bug or have a feature request.
Please email gymbell2026@gmail.com with a short description (and a screen recording if you can). Gymbell is built by one person and every message is read.
Direct line
gymbell2026@gmail.com

Support, press, bug reports, business — same inbox, real human, usually within 48 hours.

Send a message

Pick up the
bar.

1 month free. No credit card tricks, no data leaving your phone. Just better sessions, starting today.

Download on App Store