Trainer first. Three other directions.
The shortlist. Choose the missing job before choosing another app. Trainer is our first recommendation for general iPhone strength training; the other options solve different needs. This order is editorial preference, not a measured performance or popularity ranking.
Trainer
Liftin’
A published standalone Watch log with configurable automatic progression.
Explore Liftin’ alternativesStrong
A routine-first notebook with documented phone and Watch coverage.
Explore Strong alternativesHevy
Watch logging alongside a social and cross-platform workout record.
Explore Hevy alternatives
What should change when you leave SmartGym?
SmartGym’s documented Watch experience goes beyond showing heart rate during a phone workout. The vendor publishes independent Watch logging and Smart Trainer use without an iPhone nearby. A fair comparison needs to preserve that distinction: two products can both say Apple Watch and still support different parts of the training workflow.
Start by listing what you actually do on the wrist. Starting a routine you already synced, editing a weight, changing an entire program, and generating a new workout are separate actions. Decide which are necessary before comparing subscription or visual design. Otherwise it is easy to switch for a feature label and discover that the device sequence you depended on has changed.
Why consider Trainer?
Trainer’s strength is the connection between the iPhone plan, actual completed sets, and an editable next target. Its core tracking, next-weight suggestions, saved/library programs, and history are free. Optional AI planning and coaching require the relevant account, consent, and allowances.
On Watch, Trainer runs already-synced routines without a nearby phone after initial iPhone setup and routine syncing. That is useful for a prepared session. It is a narrower claim than replacing every SmartGym standalone feature. If you are happy to organize the week on iPhone before training from the wrist, Trainer belongs on the shortlist; if you need complete wrist-only planning, compare that requirement directly with SmartGym’s published offering.

The facts, side by side.
Source inventory recorded October 14–15, 2026. Each field links its official source. Unknown means unconfirmed, not absent.
| Feature | Trainer | SmartGym |
|---|---|---|
| Price | Free core tracking; optional Trainer Pro subscription Source | check current pricing Unconfirmed Source |
| Platforms | iPhone, iPad and Apple Watch Source | iPhone, iPad, Mac Source |
| Apple Watch | Already-synced routines, weight/reps and rest controls; initial setup and sync require iPhone Source | Independent Watch logging and Smart Trainer Source |
| AI / progression | Editable history-based targets; AI plan generation, improvements and coaching Source | Smart Trainer adapts load, reps, and routines Source |
| Programs | Equipment-aware programs, templates and editable routines Source | Designed workouts and custom routines Source |
| Free tier | Logging, next-weight suggestions, saved/library programs and recorded workout history Source | Free download; Premium trial; core limits need checking Unconfirmed Source |
When SmartGym is still the better fit
Stay with SmartGym if its independent Watch workflow is the reason you train with it. The same applies if you make regular use of its published iPad or Mac clients. Trainer’s iPhone and Watch focus does not establish equivalent native apps on those other devices.
SmartGym also publishes manual routines and an adaptive Smart Trainer. You do not have to use AI merely because the product offers it. If the manual workflow already fits, compare the exact Premium boundary before moving. An unconfirmed free-tier limit should stay unconfirmed rather than turning into a claim that the competing app cannot do useful free work.
The useful test: leave the phone behind only after checking the routine
Prepare the same planned session on iPhone, sync it, and verify it appears on Watch before going to the gym. During the comparison, inspect the weight and rep controls and how you manage rest. Afterward, check the recorded session on the phone. Those observations test the workflow you need without assuming that every screen exists on both devices.
Now ask what happens if you arrive without a prepared routine. If that is a common situation, fully independent planning matters more. If your sessions are planned in advance, the extra independence may be less important than how the next targets and history work on iPhone. The right alternative depends on your normal session, not the most demanding hypothetical device setup.
Before you move your routine
- Write down the SmartGym Watch actions you need, especially any workout generation or program editing done away from iPhone.
- Rebuild your current routine in Trainer and sync it from iPhone before testing a wrist-only session.
- Verify the completed record afterward. Direct SmartGym history import and full standalone feature equivalence are not promised.
Keep the original archive until you have checked the new record. Exporting data from one product does not establish that another can import its format. Do not delete a useful history simply because your first new session looks right.
Three other options worth understanding
Liftin’
An iPhone and Watch set log with configurable automatic increases and decreases.
Access to check: Website advertises an extended free trial; check terms Source
Strong
A routine-based workout notebook with progress records and iPhone, Android, and Watch support.
Access to check: Free account and core tracking; check current routine limits Source
Hevy
A workout log with routines, progress analysis, social sharing, and adaptive Hevy Trainer in Pro.
Access to check: 4 routines; 3 months of displayed history; 7 custom exercises Source
Compare the ongoing cost of the feature you need
A free download, a trial, and a permanent free core are different offers. For SmartGym, the checked access record is: Free download; Premium trial; core limits need checking Unconfirmed Source
The published price record is: check current pricing Unconfirmed Source Check your platform, region, renewal period, and the actual feature you intend to use at checkout. An unconfirmed price is not treated as zero.
For Trainer: Free core tracking; optional Trainer Pro subscription. Its free core includes logging, next-weight suggestions, saved/library programs and recorded workout history. Optional AI features have their own access rules. Compare permanent free access and trials
Sources, scope, and how this guide was written
Editorial review: . The shared feature inventory was recorded on 2026-10-14; StrengthLog and Apple Fitness+ were added on October 15. Official product pages were revisited for the original alternatives series. Source links in the comparison table identify the support for each field.
Trainer descriptions cover its workout planning, Strong and Hevy history import, published features, and current availability. Training scenarios are illustrative editorial examples. We did not independently test every competing app, measure comparative results, or invent customer stories. Read the full method and correction policy
Frequently asked questions
Does Trainer run on Watch without the phone nearby?
Already-synced routines can run on Trainer’s Watch app without a nearby iPhone. Initial setup and syncing require iPhone. This does not promise all planning and AI features independently on Watch.
Does SmartGym offer fully independent Watch training?
Its official page publishes independent Watch workouts and Smart Trainer use without a nearby iPhone or internet. Confirm the current device and subscription requirements.
Does Trainer replace SmartGym on Mac and iPad?
This recommendation covers Trainer’s iPhone and Watch workflow. It does not establish equivalent native Mac or iPad clients.
Continue with the kind of alternative you need
Keep the comparison tied to your next actual session. A useful replacement should make the training job clearer while preserving the records and guidance you still need.
