Use Strength with confidence.

Strength is an iOS strength-training app for planning sessions, logging work, and reviewing training progress. It brings programs, reusable workout templates, exercise history, and performance trends into one place.

Start with Today for your current training direction. Choose a planned session when you have one, or begin a workout and log the work you complete. Your completed sessions become the history Strength uses to show previous performance, trends, estimated strength, and recommendations you can choose to use or ignore.

No. Programs are useful when you want to organize training over several sessions or days, but they are not required for every workout. A workout can stand on its own, which is useful for an unplanned session or training that does not follow a repeating schedule.

Begin from the workout available to you in the app, whether it comes from a program, a reusable template, or a standalone session. Once active, work through its exercises and record each completed set.

During a workout, enter the weight and repetitions you completed, then tap Complete Set. Adjust the values before you mark the set complete, and record what actually happened in the gym rather than trying to force the original target.

Warm-ups let you record preparatory work before your working sets. Use them to keep your session complete while making it clear which sets were part of the main training work.

Strength includes rest timing to help you stay aware of the break between sets. Use the timer as a cue, then take the rest you need before beginning the next set.

Yes. Exercise substitution is available when the planned movement does not fit the session, such as when equipment is unavailable. Choose a suitable alternative and continue logging the work you perform.

Yes. Supersets keep paired exercises organized when you move between them with little or no rest. Log each exercise’s work as you complete it so the session history stays clear.

Review the sets you recorded and use the workout’s finish flow when the session is complete. Completed work becomes part of your training history, where you can revisit the session and see its contribution to progress.

A training program organizes training across multiple sessions or days. It gives the work ahead a sequence, which can make progressive overload—gradually increasing training demand over time—easier to plan and review.

A workout template is a reusable workout structure. It is useful for a session you return to often, such as an upper-body day or a short full-body workout, without rebuilding the exercise list each time.

A program organizes several training sessions over time. A template is one reusable session structure. You can use templates as part of a program or as a flexible starting point for training without a program.

Manage programs from Profile, where your training structure is kept. Select the program you want to use for current training, and return there when it is time to change direction; available options can vary with your setup.

Yes. Strength supports structured training without requiring every workout to belong to a program. Use a reusable template or a standalone workout when that better fits your training.

A gym profile represents a training environment and the equipment available there. It helps keep planning grounded in where you train, whether that is a commercial gym, a home setup, or another regular location.

Open Progress to review training history, performance trends, personal records, estimated strength, bodyweight history, and training coverage. Use it to see how recorded work is changing over time.

An e1RM is an estimate of the maximum weight you could lift once, based on recorded performance. It is not a measured maximum lift, but it can be a useful way to compare strength performance over time.

Use Progress to revisit completed training and record-oriented performance history. Personal records highlight notable performance changes; they are most useful when read alongside the exercise and session context that produced them.

Trends show how your recorded training changes over time, rather than judging one workout in isolation. Look for sustained patterns in performance, volume, frequency, estimated strength, or bodyweight, then use your goals and circumstances to decide what to do next.

Aristeia Intelligence evaluates relevant recorded training performance to identify meaningful patterns. When the evidence supports an adjustment, it may recommend a progression change and explain the reasoning behind it.

No. Aristeia informs the decision; you make it. Consider the recommendation alongside your goals, technique, schedule, and the reality of the session, then apply or ignore it as you choose.