INTVL vs Taper Swim
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
INTVL
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INTVL is the interval timer built for athletes who demand precision. Whether you're crushing a HIIT session, powering through Tabata rounds, or timing your boxing drills — INTVL keeps you in the zone with clear audio cues, voice coaching, and haptic feedback so you never miss a beat. PRECISION TIMER Frame-perfect countdown with color-coded intervals. Large, high-contrast display visible from across the room. Loud audio cues that cut through gym noise. Haptic vibrations so you can feel every transition. Background mode keeps the timer running even when your phone is locked. DRAG & DROP WORKOUT BUILDER Design custom workout sequences with an intuitive drag & drop interface. Add work, rest, prepare, and cooldown phases. Set rounds, adjust durations, and preview your total workout time — all before you start. Save unlimited presets for your favorite routines. VOICE COACH Built-in voice coaching announces interval changes, countdowns, and motivational cues. Adjustable speech rate and language-aware — speaks in your device language. Train without looking at your screen. WORKOUT LIBRARY Browse preset workouts across HIIT, Tabata, Cardio, Strength, and Yoga categories. Filter by intensity level and duration. Start any workout in seconds, or use presets as templates to customize. QUICK SETUP Not ready for the builder? Use Quick Setup to configure work time, rest time, and rounds in 3 taps. Perfect for simple interval sessions. ANALYTICS & STREAKS Track your workout history with detailed stats. See calories burned, total work time, and rounds completed. Maintain consistency streaks and visualize your weekly training trends. Stay motivated with insights into your progress. DESIGNED FOR FOCUS Pure black OLED-optimized interface designed for zero distraction during intense training. Color-coded phases — green for work, blue for rest, yellow for prepare, orange for cooldown — let you know what's coming at a glance. BUILT FOR EVERY ATHLETE Perfect for HIIT, CrossFit, Tabata, boxing, MMA, circuit training, running intervals, cycling, rowing, yoga flows, stretching routines, and any activity that needs precise timing. INTVL PRO Unlock the full experience with a free trial: • Unlimited custom timer presets • Full workout library access • Advanced analytics and insights • Priority support Download INTVL and take control of your training. Your next personal best starts now. INTVL Pro – Yearly Subscription - Full access to all features - Unlimited interval workouts & custom timers - Auto-renews yearly – cancel anytime in iPhone Settings Privacy Policy: https://intvltimer.app/privacy-policy Terms of Use (EULA): https://intvltimer.app/terms-of-use
Taper Swim
Effortlessly log swim workouts by simply photographing your practice whiteboard. The app automatically extracts sets, distances, and intervals, creating a detailed workout breakdown. Track your progress, add notes, and easily share your performance.
- Instant whiteboard capture
- Automatic workout breakdown
- Workout journal with notes
- Searchable swim history
- Shareable workout cards
- Supports yards/meters, SCY/SCM
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Snap your whiteboard. Your workout logs itself. Taper reads the sets, distances, and intervals from any practice whiteboard. No typing, no spreadsheets. Just take a photo, and it's done. Getting started with Taper is free. FEATURES • Instant capture: photograph any whiteboard, get a full workout breakdown • Workout journal: log how you felt and tag your session • Your history: every swim, searchable and filterable • Progress dashboard: weekly trends and your swims by course • Share-ready cards: export any workout in one tap • Groups: train with your team and share daily workouts • Yards or meters, short course or long course Built for competitive swimmers, club athletes, and anyone who actually cares. TAPER PRO An optional subscription for unlimited workout uploads. $0.99 per week or $3.99 per month. Terms of Use: https://taper.fit/terms Privacy Policy: https://taper.fit/privacy
Screenshots
Verdict
The clearest difference is ads: Taper Swim at none against INTVL's shown. Taper Swim also leads on update cadence (weekly vs fortnightly). On price, in-app purchases, device support and iOS requirement 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
Both are free to download. INTVL sells 1 in-app purchase, starting at $39.99 per year and Taper Swim sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.
INTVL ships an update fortnightly, Taper Swim weekly. The most recent releases landed on September 23, 2026 and September 18, 2026 respectively.
| Parameter | INTVL | Taper Swim |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (7 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 7 — better |
| Update frequency | Fortnightly | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | — | Subscription |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 87 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Imperial Sales & Marketing GmbH | Sung Joo Lim |
In-app purchases
INTVL
- INTVL Pro Annual7 Days trial$39.991 Year
Taper Swim
- Taper Pro (Monthly)14 Days trial$5.991 Month
- Taper Pro (Yearly)14 Days trial$49.991 Year









