
iPhone & iPad · iOS 18.1 or later · formerly PR AI
Log the lift. See the trend. Know when to add weight.
MaxLift is a workout log for the gym. Build programs from 200 built-in exercises or your own, log every set with weight and reps, and chart your weight, volume and reps over time. Each exercise also shows your max weight and best estimated one-rep max. MaxLift Pro adds progression advice that tells you when to add weight or reps.
| Set | Weight | Reps |
|---|---|---|
| 1 | 80 | 8 |
| 2 | 80 | 8 |
| 3 | 80 | 7 |
Illustration of the logging screen and a progress chart; not real data.
01 — Log
Create a program, name it, reorder its exercises, and archive it when you are done. Archived programs can be restored.
Start a workout from a program and step through its exercises, logging each set with weight and reps. Sets you have already logged are listed under the exercise, and you can tap one to edit it.
Each program has a History tab with its workouts, newest first. Open one to edit or delete sets, or to add a set or an exercise. Close the app mid-session and a banner on the Programs tab takes you back.
200 built-in exercises in eight groups, and you can add your own. Weights in kg or lb.
02 — See progress
In the Exercises tab, tap an exercise you have logged. You get an overview of totals and bests: total sets and reps, max weight, max reps (the most reps in one set), max volume (your best single set of weight × reps) and best estimated 1RM. Estimated 1RM uses the Brzycki formula, weight × 36 ÷ (37 − reps), on sets of 1 to 10 reps. Below it are charts of Weight, Volume (weight × reps) and Reps over time, with one line for each set number. Everything covers all the workouts you have logged for that exercise. Search the list to find an exercise fast.
The charts and the overview are free, and so is the short progress summary with a one-line suggestion once you have a few workouts logged.
03 — MaxLift Pro
For each exercise with enough history (at least three logged sets over at least two workout days), MaxLift looks at your latest workout, mainly at the average reps per set and how even your sets were, and suggests one of three things. Each suggestion has a short “why” and a confidence level: High when you have five or more earlier workouts of that exercise, Medium with three or four, Low with fewer.
How it works: the advice is calculated on your phone from your own logs, with fixed rules of thumb about rep ranges. There is no chatbot, and your workouts are not uploaded. It does not know your goals, injuries or warm-up sets, so treat it as a suggestion, not coaching or medical advice.
04 — Support
Logging workouts, building programs, workout history, the charts and the exercise stats are free, and so is the short progress summary on each exercise’s screen. The progression advice, the Progression Guide and Analyze Program need MaxLift Pro, an auto-renewing monthly or yearly subscription. Prices, and any introductory offer, are shown by the App Store in the app before you subscribe and depend on your country.
Four things: the Advice button while you log an exercise, the Get Progression Advice button on an exercise’s screen, the Progression Guide, which lists advice for every exercise you have enough data for (with a time-range filter), and Analyze Program, which reviews a whole program. Nothing you have already logged is locked.
It does not flag a new record, keep a list of your PRs or send you a message when you set one. What it shows, for every exercise you have logged, are the numbers behind a PR: max weight, max reps in a single set, max volume (your best single set of weight × reps) and best estimated 1RM, on the exercise’s overview.
No. MaxLift records the weight, reps and time of each set. It has no rest timer and no RPE, RIR or effort rating.
It is calculated on your phone by the app’s own progression rules from the sets you have logged. There is no chatbot, and your workouts are not sent anywhere. The rules look at your latest workout for an exercise, mainly at the average reps per set and how even your sets were, and suggest increasing the weight, increasing the reps or, in one case, a lighter weight (deload). Each suggestion comes with a confidence level of High, Medium or Low and a short explanation of why.
The app needs enough history for that exercise: at least three logged sets spread over at least two different days. Keep logging and it appears. Without MaxLift Pro, the advice buttons open the MaxLift Pro offer instead, and the Advice button in a workout does not appear.
The rules average the reps of every set you logged for that exercise on the most recent day you trained it, warm-up sets included, and they know nothing about your goals, injuries or the rest of your program. If warm-up sets are in the log, the average drops and the advice can be too cautious. Treat it as a suggestion, not an instruction.
In MaxLift, open Settings (the gear at the top left of the Programs tab): Restore Purchases brings back a subscription you already have, and Manage Subscription appears while Pro is active. You can also cancel in the iOS Settings app under your name › Subscriptions. Cancelling stops the renewal; your logs stay.
Settings (the gear at the top left of the Programs tab) › Units › Weight Unit. Switching does not change what you logged: weights are stored once and shown in the unit you pick, so you do not need to re-enter anything.
Yes. Add Exercise on a program lets you pick from the 200 built-in exercises or create your own, and Settings › Custom Exercises lists the ones you made and lets you add or delete them. An exercise that is in a program or has logged sets is locked (a lock replaces its delete button).
No. Your sets are saved as you log them. A Workout in Progress banner on the Programs tab takes you back to it; it is shown for up to 24 hours after you left. A workout from the last 48 hours can also be reopened from the program’s History with Resume This Workout.
During a workout, the sets you have already logged for the exercise are listed under it. Tap one to edit it. For an earlier workout, open the program, go to its History and tap the workout: each set there can be edited or deleted. A whole workout can be deleted from the History list with Edit.
Archiving moves a program out of your list but keeps it and its workouts: swipe the program or use Archive Program in its menu. Open Archived Programs in the menu on the Programs tab to bring it back. Deleting a program, which you can do from Archived Programs, removes it together with its workout history. Deleting a workout from a program’s History removes just that session.
Yes, through your own iCloud account: sign in with the same Apple Account on both devices and keep iCloud on for MaxLift. There is no MaxLift account. The app shows Syncing, Synced or Sync failed at the top left of the Programs tab, and your kg or lb choice syncs too. A new device can take a little while to fill up. If you see Sync failed, check that you are online and signed in to iCloud.
iPhone and iPad with iOS or iPadOS 18.1 or later. The app is in English, German, Spanish, French, Japanese, Korean, Malay, Norwegian, Portuguese (Brazil), Thai, Turkish, Vietnamese and Chinese (Simplified).
Yes. MaxLift is the new name of PR AI; it is the same app. This page keeps its old address (frekvens.ai/apps/prai/), which is why you still see “prai” in the link.
Your workouts live on your device and, if you use iCloud, in your own iCloud. There is no account, no analytics and no advertising, and the progression analysis runs on the device. The details are in the privacy policy.
05 — Still stuck?
Say which iPhone or iPad you have, the iOS version and what happened. For a subscription question, say which Apple Account you bought it with; purchases themselves are handled by Apple.