Comparison

Interval Workout Timer vs FulwaveTimer

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Interval Workout Timer

Features
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Stop fighting your timer. Start building your workout. Block Timer is a premium, modular interval system for those who have outgrown generic fitness apps. Whether you’re an athlete, coach, gym-goer, or home-workout warrior, Block Timer gives you the power to build any routine exactly how you want it. The "Building Block" Advantage Most timers are rigidβ€”ours is flexible. Every exercise and rest period is a "Block" that you can color-code, name, and rearrange with a single swipe. No more "Set/Rest" constraints. Build complex circuits in seconds. Core Features: β€’ Quick Timer: Set and go for simple sessions. β€’ Drag & Drop Builder: The most intuitive routine editor on the App Store. β€’ Smart Voice & Haptics: Audio cues read your exercise names aloud so you can stay focused. β€’ Instant Flexibility: Tap the +15s button mid-workout to extend any block without pausing. β€’ 100% Offline & Private: Your data stays on your device. β€’ Seamless Audio: Play music or podcasts without volume ducking or interruptions. β€’ Pro Stats: Track your total volume, activity days, and workout history. Why Athletes Choose Block Timer: "Finally, a timer that respects my routine. I can build specific mobility flows and high-intensity circuits without fighting a cluttered UI." Subscription Terms: Payment will be charged to your Apple ID account at the confirmation of purchase. The subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. Privacy Policy: https://persistent-carnation-002.notion.site/Terms-of-Service-32df21bea4988071be83d45234ba8b78?pvs=74 Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

FulwaveTimer

Features
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Most timers count to zero. FulwaveTimer runs your whole routine β€” built from stages, each with its own length, color, and most important sound. Intervals, Pomodoro focus blocks, breathing exercises, a speech you're rehearsing, a sleep wind-down: set the structure once, press play, and follow along by sound, on your Lock Screen, or from your wrist. BUILD IT YOUR WAY β€’ Multistage timers β€” add as many stages as you like, each with its own duration and color. β€’ Per-stage sound β€” play an audio track you own, or have the app read text aloud with a voice and speed you choose. β€’ Independent transitions β€” set how each stage's audio starts and ends on its own: Cut, Fade, or Crossfade into the next stage. β€’ Per-stage haptics and alert tones, plus a spoken 10-second warning or 3-2-1 countdown. β€’ Repeat a single stage, or loop the whole playlist β€” perfect for HIIT rounds, Pomodoro cycles, and breathing sets. β€’ Start fast from built-in templates: Pomodoro, HIIT, Box Breathing, Meditation, and more. ON-SCREEN TEXT FOR SPEECHES β€’ Show a stage's text on the Player and scroll it in time with the reading β€” a simple teleprompter for practicing a talk. VOICE-OVERS, IN YOUR VOICE β€’ A session can carry its spoken words as text rather than baked-in audio, so your device reads them over the stage's music in any voice you have installed β€” including another language. β€’ Set the voice and the speed, or turn speaking off and read along on screen. Yours to adjust even in a locked session. STAY IN CONTROL, EVERYWHERE β€’ Live Activity and Dynamic Island show your session on the Lock Screen with a glanceable countdown. β€’ A Quick Start Home Screen widget launches a playlist with one tap. β€’ On-time stage notifications announce each new stage by name. β€’ Lock Screen and headphone controls to play, pause, and skip. APPLE WATCH + APPLE HEALTH β€’ A live timer on your wrist with stage, countdown, and controls. β€’ Record your session as a workout in Apple Health β€” with heart rate, active energy, and the workout type you set on the playlist. β€’ Wrist haptics fire at every stage change, even with the screen off. YOUR LIBRARY, SAFE AND IN SYNC β€’ iCloud keeps your playlists in sync across your devices, privately. β€’ Color-tag playlists to organize your library. β€’ Export and import playlists. β€’ Automatic backups with one-tap restore β€” the newest also kept in your own iCloud account, so it survives a reinstall. β€’ A shared session puts its own audio back on your other devices, or after a reinstall. MADE TO FIT YOU β€’ Custom accent, background, and text colors; Dynamic Type and VoiceOver throughout. β€’ Design your Player: movable widgets, eight clock styles. β€’ A simplified Playback-Only view when you just want to press play. β€’ Works on iPhone, iPad, and Apple Silicon Mac. FULWAVE PRO FulwaveTimer is free to use, and keeps a small library at no cost. Fulwave Pro unlocks an unlimited playlist library and session export. Pro is available as a monthly subscription with a 7-day free trial, or a one-time lifetime purchase. SHARE COMPLETE SESSIONS Bundle a playlist together with its audio into a single .fws session file and share it. Anyone can open and play a session they receive; Fulwave Pro keeps imported sessions in your library permanently. FULWAVE DESIGNER FOR MAC Fulwave Designer is a free companion app on the Mac App Store. Build a session on a big screen: layer several audio tracks and spoken-text cues on a single stage, set each layer's start delay, gain, and pan, choose haptics and stage colors, add session artwork, and audition it all on a transport. Export a .fws session β€” optionally locked, so it plays exactly as you built it β€” to play or share here. Sessions you receive open and play for free; Fulwave Pro keeps them in your library. No accounts. No ads. No tracking. Your data stays on your devices. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://fulwave.com/FulwaveTimer/PrivacyPolicy.html

Screenshots

Interval Workout Timer4 screens
FulwaveTimer4 screens

Verdict

The call

The clearest difference is iOS requirement: Interval Workout Timer at 15.1 against FulwaveTimer's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Interval Workout Timer sells 3 in-app purchases, starting at $2.49 per month and FulwaveTimer sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Interval Workout Timer ships an update every 3 days, FulwaveTimer every 4 days. The most recent releases landed on October 3, 2026 and October 19, 2026 respectively.

Scorecard1 real difference Β· 5 level
Interval Workout Timer versus FulwaveTimer: the parameters behind the verdict, then further details
ParameterInterval Workout TimerFulwaveTimer
PriceFreeFree
Update frequencyEvery 3 days β€” betterEvery 4 days
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS15.1 β€” better17.6
Further details β€” not scored
Size50 MB11 MB
Age rating4+4+
DeveloperYU HUA CHEOKPhillip Fuller

In-app purchases

3 purchases

Interval Workout Timer

Subscriptions2
  • Block Timer Pro$2.491 Month
  • Block Timer Pro7 Days trial$11.991 Year
One-time1
  • Lifetime Premium$31.99
2 purchases

FulwaveTimer

Subscriptions1
  • Fulwave Pro (Monthly)7 Days trial$0.991 Month
One-time1
  • Fulwave Pro (Lifetime)$29.99

Questions

Is Interval Workout Timer free?
Interval Workout Timer is free to download, with in-app purchases available.
Is FulwaveTimer free?
FulwaveTimer is free to download, with in-app purchases available.
Do Interval Workout Timer or FulwaveTimer have ads?
Neither Interval Workout Timer nor FulwaveTimer shows ads.
Which is updated more often, Interval Workout Timer or FulwaveTimer?
Interval Workout Timer ships an update every 3 days, and FulwaveTimer every 4 days. Most recently, Interval Workout Timer was updated on October 3, 2026 and FulwaveTimer on October 19, 2026.

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