This app was mentioned in 3 comments, with an average of 1.00 upvote
I've created a free fitness app with some friends called Updown Fitness. You can completely build a workout from scratch using our custom build tool and can select from over 1500+ exercises, weighted and unweighted. The app uses a proprietary algorithm to recommend how many reps to do and weights to use and adjusts these numbers based on your workout. Set and rest timers guide you through the workout itself. It is not purely a logging app like you are looking for, but it might be a nice option to check out. There is also functionality to view the stats on every workout and exercise you've ever done.
Android: https://play.google.com/store/apps/details?id=com.ionicframework.updownapp567681
iOS: https://itunes.apple.com/us/app/updown-fitness/id1057346888?mt=8
App: Updown Fitness. Builds personalized workouts for you from a database of 1500+ exercises. Uses our proprietary algorithm to adjust reps and weights for you based on your workouts. You can also create custom workouts from scratch. There are social features like adding friends and sharing workouts, and gamification elements like earning points and levels. Also there's functionality to view stats and history on all past workouts and exercises. App is completely free and ad-free.
Android: https://play.google.com/store/apps/details?id=com.ionicframework.updownapp567681
iOS: https://itunes.apple.com/us/app/updown-fitness/id1057346888?mt=8
Whatsup Reddit,
My company, Updown, recently finished developing an awesome free fitness app called "Updown Fitness". Exercise according to your schedule with personalized workouts generated just for you from our library of 1,400+ exercises. What makes our app truly unique is that it automatically learns from your workouts and adjusts your routines with more/less reps and weight as you progress.
Here's a quick 1 min video on how it works: https://www.youtube.com/watch?v=BuHysrqXPaY
Get it for free on Goole Play Store: https://play.google.com/store/apps/details?id=com.ionicframework.updownapp567681
Here is our site (web app also available): www.updowntech.com
Would love to hear feedback and suggestions. Thanks everyone and enjoy!