Best 4 alternatives: apps like 4:13

6+ similar apps compared and reviewed

3.9 avg rating
6 free apps
Updated November 2026

4 is great, but it's not the only option. Explore 6+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to 4

SIMNSA#1

SIMNSA by SIMNSA HEALTH PLAN

Your health comes first!
3.6(9 ratings)
Free
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Manage your healthcare appointments and medical information. Schedule, review, and cancel appointments, receive reminders, and access your digital ID. Stay informed about promotions and department updates.

4.5😞(274 ratings)
Free
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Manage your fitness studio or gym experience seamlessly. Browse class schedules, book sessions, and handle payments for services and products directly from your mobile device.

What We Love

  • πŸš€ Easy to use
  • πŸ‘ Straightforward and intuitive
  • πŸš€ Convenient booking and scheduling
  • πŸ‘ Friendly and welcoming environment
  • πŸš€ Quick and efficient
  • πŸ‘ Functional and reliable

Room to Improve

  • πŸ› Constant bugs and glitches
  • πŸ”’ Unable to cancel membership or remove payment info
  • πŸ› Crashes and freezes frequently
  • πŸ› Unreliable notifications and syncing
  • πŸ› Confusing credit management and booking process
  • πŸ› Lack of language options and translation support
Digbi Health#3

Digbi Health by 3TandAI

Weight, Diabetes & Gut Care
Worth Considering
πŸ’ͺ Health & Fitness
4.2(190 ratings)
Free
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This app offers a personalized digital health program using DNA, gut biome, and lifestyle data. It provides prescription-grade plans for weight loss and managing chronic health conditions with AI-powered coaching and a comprehensive wellness app.