The PHI

Phi Strength and Conditioning Inc Health & Fitness iPhoneiPadiPod touch

The PHI is a free Health & Fitness app for iPhone and iPad by Phi Strength and Conditioning Inc. Requires iOS 13.5. Updated April 8, 2025.

Price: Free; on the App Store
Size: 14 MB; Age 4+
Updated: Apr 8; 2025 · v8.4.5

Download on theApp Store See alternatives

Screenshots

About The PHI

Download The PHI app to easily book classes and manage your fitness experience - anytime, anywhere. Make a reservation, get added to a wait list, check your profile and membership status, and more – all from your device. Visit https://www.phistrength.com/ to learn more.

What’s new

Version 8.4.5 · Updated April 8, 2025

Quicker bookings, frictionless login, and powerful branding - this update has it all. You can book your favorite class 33% faster than before with the new quick-booking feature. Even logging into the app is faster with support for biometric login using a fingerprint or a face scan. Do it all fully immersed in your studio’s brand. We've made some minor bug fixes and user experience improvements.

App privacy

The developer, Phi Strength and Conditioning Inc, reported these privacy practices to Apple.

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

Contact Info: Email Address, Name, Phone Number, Other User Contact Info
Identifiers: Device ID
Usage Data: Other Usage Data
Sensitive Info: Sensitive Info
Diagnostics: Performance Data, Crash Data, Other Diagnostic Data

Used for: Analytics, Product Personalization, App Functionality, Other Purposes

App details

The PHI is a free Health & Fitness app for iPhone, iPad and iPod touch, developed by Phi Strength and Conditioning Inc. It requires iOS 13.5 or later and is 14 MB to download. It was first released on January 16, 2025 and last updated on April 8, 2025.

Category: Health & Fitness
Price: Free
Version: 8.4.5
Size: 14 MB
Requires: iOS 13.5 or later
Compatibility: iPhone, iPad, iPod touch
Languages: English
Age rating: 4+
Released: January 16, 2025
Last updated: April 8, 2025
Developer: Phi Strength and Conditioning Inc

View on the App Store

Build an app like The PHI

Get a ready prompt for Claude Code, Cursor or Lovable: its features and business model, and what its users complain about, for an original app of your own.

Make the prompt →

Is this your app?

Give it a free website

Landing page, privacy policy and app-ads.txt, generated from your store listing.

Create it free

Alternatives to The PHI

Looking for apps like The PHI? Here are 6 similar apps on the App Store. The highest rated is Kings Athletics (5.0/5), and all 6 are free to download.

The PHI vs. alternatives
App	Rating	Price	Last updated	Compare
The PHI	–	Free	April 8, 2025
Kings Athletics	5.0 / 5 (2)	Free	Nov 25, 2025	Compare
Power in Motion Gym	–	Free	Jun 10, 2025	Compare
Next Level Fitness & Training	5.0 / 5 (1)	Free	Dec 5, 2025	Compare
Ethereal Movement	–	Free	Aug 31, 2026	Compare
Los Campeones Gym Columbus	–	Free	Jul 24, 2026	Compare
REP Fieldhouse	–	Free	Sep 8, 2026	Compare

Compare The PHI with the top alternatives: ratings, updates, ASO score and keyword gaps →