Best apps like Phase — Interval Trainer

9+ similar apps compared and reviewed

4.2 avg rating
9 free apps
Updated October 2026

Looking for something like Phase? We've analyzed 9+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to Phase

More apps like Phase

4
RunDot: Adaptive Run Training
RunDot: Adaptive Run Training
RunDot: Adaptive Run Training
Better. Faster. Safer.
Free

This app offers personalized running training plans that adapt to your performance, recovery, and schedule. It uses AI to optimize workouts, reduce training time, and minimize injuries, making progress sustainable and efficient.

Adaptive training plansReal-time plan adjustmentsAI-powered optimization
💪 Health & Fitness
(32)
free with in-app purchases
5
Relationship tracker: Happus
Relationship tracker: Happus
Relationship tracker: Happus
Couples conversations & dates
Free

This app offers a guided approach to improving relationships through science-based quizzes, conversation starters, and date ideas. It aims to enhance communication, happiness, and intimacy without the need for expensive therapy.

Couple quizzes on various topicsConversation startersScience-based facts and tips
💪 Health & Fitness
(53)
free with in-app purchases
6
Fartlek Interval Trainer
Fartlek Interval Trainer
Fartlek Interval Trainer
Get insights into your workout
Free

This running app automatically detects spontaneous intervals during Fartlek runs, providing live color-coded feedback on your effort. It also functions as a powerful timer for structured workouts like HIIT and Tabata, offering detailed metrics and syncing with Strava and Apple Health.

Auto-detection of Fartlek intervalsLive color-coded effort feedbackStructured workout timer (HIIT, Tabata)
💪 Health & Fitness
(0)
freemium
7
Runify: Running Tracker
Runify: Running Tracker
Runify: Running Tracker
GPS Runs, Ranks & Leaderboards
Free

This app transforms your runs into a competitive experience. Earn XP, unlock new tiers, and climb leaderboards by tracking your progress and challenging friends. Visualize your journey with detailed stats and share your achievements.

Gamified running with XP and ranksCompetitive leaderboards (friends, global, local)Track distance, pace, and consistency
💪 Health & Fitness
(244)
free with in-app purchases
8
Johns Hopkins Rec
Johns Hopkins Rec
Johns Hopkins Rec
by InnoSoft Canada Inc.
Free

Access JHU Recreation services and information. Reserve equipment, check schedules, and book spots for group fitness classes. Discover details on facilities, aquatics, personal training, intramurals, sport clubs, and experiential education.

Facility informationAquatics schedulesGroup fitness class booking
💪 Health & Fitness
(33)
free
9
Marriage Growth & Counseling
Marriage Growth & Counseling
Marriage Growth & Counseling
Therapy, Couples, Advice, Help
Free

This app offers science-based tools and AI guidance to help couples address marriage issues, from arguments to trust problems. It provides personalized plans, deep-dive quizzes, and compatibility tests to foster understanding and growth.

Personalized relationship plansAI-driven feedback and guidanceDeep-dive psychological quizzes
💪 Health & Fitness
(1.5K)
free with in-app purchases