Comparison

SoundsFit vs Interval Timer | HIIT Training

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

Head to head
About

SoundsFit

Features
Read full description

SOUNDSFIT KEEPS YOUR WORKOUT IN ONE FLOW Build a routine, press Play, and move through Set → Rest with timers, music, form help, logging, Apple Watch controls, and results in one place. SoundsFit is made for lifters, gym users, HIIT sessions, mobility work, quick starts, and anyone who wants training and music to stay together. ◼ Build and organize routines • Create custom routines from exercise blocks. • Set weight, reps, duration, total sets, and rest. • Add notes, custom exercises, and optional exercise images. • Sort and filter your routine library by muscle, repeat day, name, sets, exercises, or recent additions. • Use guided templates, then Remix them into editable copies while the originals stay safe. • Schedule routines by date or repeat days, or use Quick Start when you want to train now. ◼ Routine Player • Follow clear Set and Rest screens with progress, timers, skip controls, and auto-advance for timed sets. • Play Apple Music, YouTube, or local audio files during sets and rests. • Choose whether audio restarts or continues across Set ↔ Rest when the same track is assigned. • Use Metronome Mode when you want a steady click instead of music. • During rest, log your last set and adjust the next set goal before you continue. ◼ Apple Watch companion • Open real custom routines from your wrist. • Start a routine from Apple Watch when your iPhone is nearby. • If you start on iPhone, Apple Watch can detect the active Routine Player and switch into wrist controls. • Follow set, rest, pause, progress, artwork, and routine state on Apple Watch. • Control play/pause/next/back/End from the Watch while the iPhone remains the main workout engine. • Review compact workout-complete results on Apple Watch with real session records. ◼ Fast logging and results • Log weight, reps, duration, assist, rating, and notes. • Review targets vs. actuals, workout/rest/pause time, and per-exercise result cards. • Use Estimated 1RM and RPE guidance to understand effort and adjust future sets. • Keep a local Session Log archive with filters, sorting, reports, and cleanup tools. • Sync finished workout logs to Google Sheets in your own Google Drive. ◼ Guidance, music, and programs • Open exercise help and YouTube form videos from exercise selection or the Routine Player. • Replace a default exercise video with your preferred YouTube link or video ID. • Follow included guided programs for strength, movement prep, and quick workouts. • Build SoundsFit playlists from Apple Music, YouTube, and local files. • Use SoundsFit DJ for training mixes, linked sleeves, liner notes, and playlist sharing into routines. • Use Cozy Record Shop for Pomodoro-style focus sessions. ◼ Insights for training and daily habits • Training Insights: muscle group overview, exercise trends, saved charts, recent PRs, plateau watch, and most trained lifts. • Kcal Insights: calorie and macro targets, food library, barcode scanning, reminders, and trends. • Hydration Insights: daily hydration, caffeine, reminders, goals, and trends. • Movement Insights: Apple Health data for step goals, stride trends, active energy, and movement planning. • Streaks: workout days, step days, planned rest days, milestones, and rewards. NOTES • Spotify support has been removed from SoundsFit 1.80. Spotify search, playback control, playlist use, and Spotify-dependent SoundsFit features are no longer available. • YouTube playback is foreground-only and may pause when you lock your phone or leave SoundsFit. • Apple Health / HealthKit access is optional for some insights and required for Movement Insights. Terms of Use: https://hazybyte.studio/soundsfit/terms-of-use/

About

Interval Timer | HIIT Training

This app provides a customizable interval timer for various training activities like HIIT and Tabata. Users can build custom workouts with named phases, sounds, and vibrations, and save them as presets that sync across devices. It also supports background operation with screen off.

Highlights
  • Customizable workout builder
  • Nestable repeat blocks
  • Custom phases with names, colors, sounds, and vibrations
  • Drag and drop reordering
  • Save and reuse workout presets
  • Syncs between iPhone and Apple Watch
  • Background operation with screen off
Features
Read full description

Easy to use interval timer for iPhone and Apple Watch. Set the number of series, train time and rest time, with a colorful interface that makes the current state of the timer easy to read at a glance. Build your own workouts: - Repeat blocks you can nest to create rounds within rounds - Custom phases, each with its own name, color, sound and vibration - Drag and drop to reorder phases and blocks - Save workouts as presets and reuse them anytime - Presets sync between your phone and your Apple Watch - Sign in to back up your timers, settings and sounds and pick them up on your other devices (Pro) Keep training with the screen off: the timer keeps running in the background and alerts you at every phase change. Perfect for any of your training activities: - HIIT Training - Tabata - Circuit training - Pomodoro ...and more. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SoundsFit4 screens
Interval Timer | HIIT Training4 screens

Verdict

The call

The clearest difference is price: Interval Timer | HIIT Training at Free against SoundsFit's $4.99. Interval Timer | HIIT Training also leads on iOS requirement (16.0 vs 18.6). SoundsFit's advantage is ads (none vs shown). On update cadence, in-app purchases and device support there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Interval Timer | HIIT Training is free to download; SoundsFit costs $4.99 up front. SoundsFit sells 10 one-off in-app purchases and Interval Timer | HIIT Training sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SoundsFit ships an update every 2 weeks, Interval Timer | HIIT Training every 10 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 6 level
SoundsFit versus Interval Timer | HIIT Training: the parameters behind the verdict, then further details
ParameterSoundsFitInterval Timer | HIIT Training
Price$4.99Free — better
Rating—1.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 weeksEvery 10 days — better
AdsNo — betterYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, Apple WatchiPhone, iPad, Apple Watch — better
Requires iOS18.616.0 — better
Further details — not scored
Size203 MB86 MB
Age rating4+4+
DeveloperIri YouLS PROGRAMACAO LTDA

In-app purchases

10 purchases

SoundsFit

One-time10
  • Strength 5×5 Program$0.99
  • EXOS / RAMP Movement Prep$0.99
  • Classic 7‑Minute Workout$0.99
Show 7 more
  • High‑School Girls$1.99
  • Christmas Girls$1.99
  • Christmas Guys$1.99
  • High‑School Boys$1.99
  • Retro 80s Girls$1.99
  • Retro 80s Guys$1.99
  • SoundsFit Elite (Lifetime)$9.99
3 purchases

Interval Timer | HIIT Training

Subscriptions2
  • Interval Timer Pro Monthly$1.991 Month
  • Interval Timer Pro Annual7 Days trial$11.991 Year
One-time1
  • Interval Timer Pro Lifetime$29.99

Questions

Is SoundsFit free?
SoundsFit costs $4.99, and also offers in-app purchases.
Is Interval Timer | HIIT Training free?
Interval Timer | HIIT Training is free to download, with in-app purchases available.
Do SoundsFit or Interval Timer | HIIT Training have ads?
Interval Timer | HIIT Training shows ads; SoundsFit does not.
Which is updated more often, SoundsFit or Interval Timer | HIIT Training?
SoundsFit ships an update every 2 weeks, and Interval Timer | HIIT Training every 10 days. Most recently, SoundsFit was updated on October 30, 2026 and Interval Timer | HIIT Training on October 31, 2026.

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