How to choose a percentage-based workout app
The best app is the one that correctly represents your program and removes work you do not want to manage. Evaluate the actual schedule and progression before comparing screenshots or review averages.
Correct percentage logic
Confirm that the app distinguishes a training max from a one-rep max, supports the rounding you use, and exposes enough of the prescription to catch a bad calculation.
Program fidelity
A template name is not enough. Compare weekly frequency, exercises, set and repetition structure, progression, and source against the exact variation you intend to run.
Custom-program support
If you frequently adapt programs, verify that the editor can represent the changes without forcing the workout into an unrelated template model.
Progression and failed-work handling
Check whether the app merely increases weight or can represent the progression, testing, deload, and failure rules required by the program.
Workout usability
The interface should make the current set, prescribed weight, completed work, and upcoming work easy to understand while training.
Data portability and support
Review supported devices, account requirements, export or sync expectations, support documentation, privacy terms, and the publisher responsible for the product.
Current price
Use the official store listing for the current regional price and in-app purchases. Third-party comparison articles can become outdated quickly.
How KeyLifts fits the checklist
KeyLifts focuses on percentage-based strength programming, provides more than 170 verified templates, supports custom programs from 1 to 52 weeks, calculates weights from a training max, and connects completed workouts to progress history. Review the complete product description and public template library rather than relying on this summary alone.
Current pricing and public reviews are maintained by the Apple App Store and Google Play.
Selection criteria reviewed August 29, 2026. Product features and prices can change; verify them on the publisher's current product and store pages.