Top 5 Open-Source Alternatives to WHOOP Strap

The top open-source alternatives to WHOOP Strap are Betty, Lark, and Flipper Zero. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Betty Landing Page
1

Betty

Your Personal Scheduling Assistant
Pricing:
- Open Source
#Appointments and Scheduling #Appointment Scheduling #Health And Fitness
Lark Landing Page
2

Lark

Automated chat-based health app
Pricing:
- Open Source
#Health And Fitness #Sport & Health #Sports
Flipper Zero Landing Page
3

Flipper Zero

A portable multi-tool device styled as a Tamagotchi
Pricing:
- Open Source
#Health And Fitness #iPhone #Productivity 143 social mentions
Bootstrap Landing Page
4

Bootstrap

Simple and flexible HTML, CSS, and JS for popular UI components and interactions
Pricing:
- Open Source
#CSS Framework #Development Tools #Design Tools 326 social mentions
Materialize CSS Landing Page
5

Materialize CSS

A modern responsive front-end framework based on Material Design
Pricing:
- Open Source
#CSS Framework #Design Tools #Development Tools 25 social mentions