Trainer app iconTrainerStrengthLog app iconStrengthLog

Trainer vs StrengthLog: Plans, Tracking & Trade-Offs

The verdict. Trainer is our first StrengthLog alternative for iPhone lifters who want editable next-set guidance and Watch logging alongside their plan. StrengthLog remains a sensible choice when you value its free logging foundation and want to follow its own strength or bodybuilding programs.

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The facts, side by side.

Source inventory recorded October 14–15, 2026. Each field links its official source. Unknown means unconfirmed, not absent.

Published features for Trainer and StrengthLog
FeatureTrainer app iconTrainerStrengthLog app iconStrengthLog
PriceFree core tracking; optional Trainer Pro subscription Sourcecheck current pricing Unconfirmed Source
PlatformsiPhone, iPad and Apple Watch SourceiOS, Android Source
Apple WatchAlready-synced routines, weight/reps and rest controls; initial setup and sync require iPhone SourceNot confirmed in the checked source Unconfirmed Source
AI / progressionEditable history-based targets; AI plan generation, improvements and coaching SourceProgram instructions and repeat-workout adjustments; general adaptive AI not confirmed Unconfirmed Source
ProgramsEquipment-aware programs, templates and editable routines SourceBasic free and advanced premium strength programs Source
Free tierLogging, next-weight suggestions, saved/library programs and recorded workout history SourceUnlimited logging, basic statistics, custom workouts, and basic programs Source

What decides the comparison.

What Trainer connects

Trainer brings equipment-aware starter planning, editable routines, history, and next targets together on iPhone. Its free core includes logging, next-weight suggestions, saved or library programs, and recorded workout history. Optional AI plan work and coaching have their own account, consent, and usage rules, so compare those separately from the free logging experience.

Where StrengthLog fits

Stay with StrengthLog if its program library contains the plan you want to follow and you can interpret your progress without extra coaching. A good written progression is valuable on its own. Its published iOS and Android coverage also matters if you want the same routine environment across different phones.

Before changing your routine

Save the active StrengthLog program, current week, exercise notes, and recent completed sets. Recreate the current routine in Trainer and check any percentage or progression rules that need manual handling. Compare one completed session with your archived record. Direct StrengthLog CSV import is not promised.

Two apps, two jobs.

Trainer app iconTrainer

Best for a plan, a log, and a clear next set.

Trainer connects equipment-aware strength plans, editable next-set targets, and recorded workout history on iPhone, with set logging on Apple Watch.

Pros

  • Starter plans use your days, level, goals and equipment; library programs can retain their own schedule
  • History-based targets, PRs, recorded workout history, and Strong/Hevy CSV import
  • Log already-synced Watch routines without a nearby iPhone; initial setup and syncing use the phone

Cons

  • Designed for iPhone, iPad and Apple Watch
  • AI features require sign-in and consent; free allowances apply, and Pro includes more coaching
Get the appAvailable on the App Store

StrengthLog app iconStrengthLog

Best for free logging and strength programs.

A free strength log and program ecosystem with paid advanced programs and reports.

Pros

  • Unlimited free workout logging and basic programs
  • Strength, powerlifting, and bodybuilding program options

Cons

  • Advanced programs and reports require premium
  • Current Watch set logging is unconfirmed in the checked source
Check StrengthLog

How we compared.

Trainer is our app. We compare documented features and training workflows.

  • Compare the same real job: a written plan, a personal log, adaptive guidance, or nutrition tracking.
  • Verify features from each app's own pages and store listing; do not infer that an unlisted feature is absent.
  • Show free boundaries, Watch workflow, availability, and pricing uncertainty before asking someone to choose.

Source inventory recorded October 14–15, 2026. Source links identify the app owner or store listing. Confirm local pricing, renewal terms, and plan boundaries before subscribing. We have not independently tested every listed app.

Frequently asked questions

Is StrengthLog permanently free?

StrengthLog publishes a free core with unlimited workout logging and basic programs, plus a premium subscription for additional features. Check the current boundary for the exact program or report you need.

Can I move a StrengthLog program into Trainer automatically?

Automatic program transfer is not promised. Save the program structure and rebuild the routine carefully, checking progression instructions separately.

Does this comparison confirm StrengthLog Watch logging?

No. The checked homepage does not confirm that workflow. Unknown is not treated as absent; verify current device support before switching for that reason.