Comparison

Delta Timer △ vs Workout Timer

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

Head to head
About

Delta Timer △

This interval timer app guides users through various training routines like HIIT and Tabata. It offers customizable workouts with adjustable exercise and rest periods, featuring a minimalist design with light and dark modes for focused training.

Highlights
  • Customizable workout creation
  • Adjustable exercise and rest durations
  • Minimalist, distraction-free interface
  • Light and dark modes
  • Supports HIIT, Tabata, EMOM, and circuits
Features
Read full description

Delta Timer is a simple yet powerful interval timer built to keep you focused during training. It helps guide your HIIT, Tabata, or any other interval-based workout with ease and precision. Whether it’s HIIT, Tabata, EMOM, strength circuits, or a custom routine, Delta Timer adapts to your rhythm — guiding you through every round. Check some of the Delta Timer features: Customizable workouts: Create and fine-tune your training structure — from quick Tabata bursts to complete circuit sessions. Adjust exercise, rest, warmup, cooldown, and round durations with ease. Minimal and intuitive design: A distraction-free interface that keeps you aware of every phase of your workout, even mid-movement. Light and Dark Modes: Train comfortably anywhere, with a look that adapts to your environment. Free and ad-free: All essential features are available for free. No subscriptions, no clutter.

About

Workout Timer

Features
Read full description

Drop the phone. Stay in the workout. Workout Timer: HIIT & Gym is a voice-guided interval timer for strength training, HIIT, Tabata, kettlebells, boxing, circuits, and home workouts. Build your workout once, put your phone down, and train without babysitting the screen. Spoken cues tell you what is now, what is next, when to rest, and when the last seconds are coming. Your music keeps playing and lowers briefly for voice cues, then returns automatically. No ads. No account. No distractions. TRAIN HANDS-FREE Use your phone on the floor, in your pocket, or with the screen locked. The timer keeps running while voice cues guide transitions. - Voice-guided workout timer - Works with the screen locked or in the background - Smart music ducking: cues lower your music, then restore it - Automatically pauses for calls or headphone disconnects - Large, high-contrast display for gym use - Landscape mode and stay-awake during workouts BUILD ANY WORKOUT FAST Create the timer that matches how you actually train. - HIIT timer with custom work and rest - Tabata timer for 20/10 or your own intervals - Interval timer for 30/30, 60/60, EMOM-style rounds, and custom intervals - Strength timer for sets, reps, and rest between sets - Boxing timer with round timing and bell sounds - Circuit timer with spoken exercise names - Kettlebell timer that keeps your hands off the phone - Home workout timer for bodyweight and mobility sessions TIME-BASED AND REP-BASED Time-Based workouts give you second-accurate work, rest, rounds, warm-ups, and cooldowns. Rep-Based workouts support sets × reps with rest between sets. Optional 4-phase tempo guides eccentric, pause, concentric, and top pause, with optional breathing cues. PLAY ALL Chain warm-up, main work, and cooldown into one continuous run. Great for mixed sessions, lifting days, circuits, and boxing rounds. BUILT FOR REAL TRAINING Skip segments without ending the session. Resume after interruptions or start over. Adjust voice, tick, and bell volumes separately. Choose clear sounds that cut through the gym. FREE AND TIMER PRO Free includes up to 5 saved workouts, voice guidance, Play All, dashboard, restore archived workouts (still capped at 5), and no ads. Timer Pro is optional. It unlocks unlimited workouts, muscle-group tags, CSV export, add-to-calendar, premium sounds, custom interval-end recording, and custom themes. Plans: Monthly, Yearly, or Lifetime. Payment is charged to your Apple ID at confirmation of purchase. Monthly lasts one month and Yearly lasts twelve months. Subscriptions automatically renew unless you cancel at least 24 hours before the end of the current period in Settings → Apple ID → Subscriptions. Lifetime is a one-time unlock on the same Apple ID. Prices are shown in the store. Purchases can be restored on the same Apple ID. PRIVATE BY DESIGN Your workouts, history, and settings stay on your device. - No account - No sign-up - No cloud storage - No ad SDKs - No banners or pop-ups If you uninstall the app or clear storage, local workout data is removed. Privacy: https://www.ailuv.biz/app-timer/privacy Terms: https://www.ailuv.biz/app-timer/terms Support: support@ailuv.biz Website: https://www.ailuv.biz/app-timer You bring the program. We keep the clock.

Screenshots

Delta Timer △4 screens
Workout Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Delta Timer △ at none against Workout Timer's 3. Delta Timer △ also leads on ads (none vs shown). Workout Timer's advantage is update cadence (every 2 days vs every 10 days) and device support (3 vs 1). On price 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

Both are free to download. Workout Timer sells 3 in-app purchases, starting at $4.99 per month. Delta Timer △ asks for nothing beyond the download.

UpkeepUpdate frequency

Delta Timer △ ships an update every 10 days, Workout Timer every 2 days. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.

Scorecard5 real differences · 4 level
Delta Timer △ versus Workout Timer: the parameters behind the verdict, then further details
ParameterDelta Timer △Workout Timer
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 10 daysEvery 2 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.115.0 — better
Further details — not scored
Size12 MB23 MB
Age rating4+4+
DeveloperThomas Delgado DiasTsz Lock Lau

In-app purchases

None

Delta Timer △

No in-app purchases

3 purchases

Workout Timer

Subscriptions2
  • Monthly$4.991 Month
  • Yearly$24.991 Year
One-time1
  • Lifetime$39.99

Questions

Is Delta Timer △ free?
Delta Timer △ is free to download, with no in-app purchases.
Is Workout Timer free?
Workout Timer is free to download, with in-app purchases available.
Do Delta Timer △ or Workout Timer have ads?
Workout Timer shows ads; Delta Timer △ does not.
Which is updated more often, Delta Timer △ or Workout Timer?
Delta Timer △ ships an update every 10 days, and Workout Timer every 2 days. Most recently, Delta Timer △ was updated on October 6, 2026 and Workout Timer on October 10, 2026.

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