Life & fun · alternatives · 2026

24 alternatives to Flex - Fitness Simplified

Fitness simplified. A trainer in your pocket, for free.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Flex - Fitness Simplified launched in 2022; newer entries below may have overtaken it.

1
Flex – Coaching App for Trainers▲7
Flex coaching workout app
2025 · flexworkoutapp.com · its alternatives →
2
Strong 5▲306
Workout tracking made simple
2018 · its alternatives →
3
WorkoutMe▲339
1:1 live workouts with a random partner from all over the 🌎
2020 · its alternatives →
4
Workout.lol▲161
The easiest way to create a workout routine
2023 · its alternatives →
5
simplestretch▲79
No frills, minimalist stretching coach.
2018 · its alternatives →
6
Freeletics▲200
High intensity workouts & training plans
2015 · its alternatives →
7
SimplyFit▲125
Personalized workouts that evolve with you daily
2023 · its alternatives →
8MS
Minimal, self-hosted exercise tracker▲127
After decades of tracking my exercise programs in progressively more complex spreadsheets I eventually burned out on metrics and complicated periodization programs to the point where I had almost stopped exercising. I am now at a place where I simply want the minimal amount of structure and tracking to make sure I can maintain my fitness, so I boiled the entire concept down to what I felt was its essence: enough information and structure to remind you of what is needed today, and how it went on the same exercises last week. To reduce friction, the interface is kept as simple as possible.…
2024 · github.com · its alternatives →
9
Pocket Rocket Fit▲73
Online workout customiser to get fit at home
2020 · its alternatives →
101M
1 min workouts for people who sit all day▲153
I am a software developer and in the last few months after recently becoming a father I was barely finding time for a proper workout. Recently I was reading about new research on Snack Exercises and how beneficial mini workouts of less than 2mins every so often, during the day are to our body. So, I decided to build an iOS App for me and others to help with this. The app generates a list of exercises that I need to tick to complete daily or loose my streak. The algorithm takes into account muscle groups and balancing the exercises to hit most main muscles. I also stayed going through all…
2025 · shortreps.com · its alternatives →
11
AccuFit 2.0▲82
Free custom workouts for any place, goal, muscle, difficulty
2020 · its alternatives →
12
Flex AI: Your AI Personal Trainer▲97
Introducing AI form feedback and AI-powered training coach.
Nov 2025 · apps.apple.com · its alternatives →
13
Fitloop▲103
A full-body fitness workout made easy for everyone 🏋
2018 · its alternatives →
14
Gymphy▲138
Create free shareable workout plans
2018 · its alternatives →
15
Keep▲83
Home Workout Trainer
2018 · its alternatives →
16
MuscleWiki App▲64
Simplify your workout
2023 · its alternatives →
17
Fitbet▲132
Set a fitness goal, but if you fail you lose money.. kinda
2017 · its alternatives →
18
Talon Fitness▲81
Simple, unobtrusive workout & nutrition tracking
2023 · its alternatives →
19
Flexi▲6
The best way to plan and track your workouts.
Mar 2026 · trainflexi.com · its alternatives →
20
AnyFit▲104
Workouts for anyone, anywhere
2019 · its alternatives →
21
Fitcore▲65
Create workouts, diets, and watch real-time stats
2023 · its alternatives →
22
Flexify▲12
The fastest gym tracking app
2025 · its alternatives →
23
Flexi▲3
One platform connecting gyms, members, trainers, partners.
Jun 2026 · flexicorporation.com · its alternatives →
24
Flex'ble▲23
Your daily motivation shot to stretch
2021 · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →