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Interval Timer ++

Interval Timer ++

By Sunny Studio

Interval Timer ++ is a Health & Fitness app designed for customizable interval training, supporting both iPhone and Apple Watch. It features a calendar-based workout history and HealthKit integration to track user activity data.

Overview · Full Intel report in progress

The App DNA

What makes this app unique?

For Fitness enthusiasts seeking a simple, visual tool to manage timed workout and rest intervals.

What does it look like?

Key features

Customizable Interval Timersstandard

Allows users to set specific durations for workouts, rest periods, and repetition counts.

HealthKit Integrationstandard

Syncs with the Apple Health app to track and display step data.

Multi-Platform Supportstandard

Provides native functionality across both iPhone and Apple Watch devices.

Background Executionstandard

Supports background notifications to maintain timer continuity while using other apps or when the screen is locked.

How much does it cost?

freemium

Velocity

Maintenance developmentShow more...

5 versions in history. Development pace: maintenance.

See all version history

Who built it?

Sunny Studio

7 apps tracked · Health & Fitness

Secret Photo Album ++Secret Photo Album ++Find My Fitbit ++Find My Fitbit ++Dashboard for Apple Health AppDashboard for Apple Health AppData Manager for FitbitData Manager for FitbitHeart Rate Monitor +++Heart Rate Monitor +++Auto Sync for Fitbit to HealthAuto Sync for Fitbit to Health
Explore the full publisher profile

User Sentiment

What do users think recently?

How are ratings & reviews evolving?

Google Play
4.94 · 266k
App Store
4.82 · 15k

Not enough recent reviews to extract reliable themes yet.

Read the full review analysis

Competition

Competitive landscape for Interval Timer ++

How's the Health & Fitness market?

The rivals identified

The Analyst's Read

Key takeaways for Interval Timer ++

Where is it heading?

Bottom line

While the app offers a highly-rated, visual interface for interval training, users report potential issues with audio reliability and background interruptions during phone calls.

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Interval Timer ++, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Interval Timer ++ Intelligence Report.” Updated Apr 24, 2026. https://marlvel.ai/apps/interval-timer-1

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