Comparison

New Interval Timer vs Redline

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

Head to head
About

New Interval Timer

Features
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Take the complexity out of your workout setup. This app is the cleanest, most intuitive interval timer designed to keep you focused on your performance, not your phone. Whether you are crushing a HIIT session, practicing Tabata, boxing, or just need a reliable countdown for circuit training, the minimalist design ensures you can set up and start moving in seconds. Why You Will Love It Effortless Setup Forget digging through endless menus. Use the large, clear controls to adjust your Work Duration, Rest Duration, and Total Rounds instantly. High-Contrast Display Designed with a sleek dark interface and large typography, you can read your timer from across the room. The circular progress ring gives you a quick visual cue of how much time is left in your set. Distraction-Free Zone No clutter and no unnecessary features. Just a precise, reliable timer that helps you get the work done. Key Features Quick Start: Set your Work, Rest, and Rounds and hit Start. Smart Controls: Pause, resume, or skip intervals with ease. Visual Progress: A clear progress ring tracks your current interval visually. Workout Summary: Get a confirmation screen when you complete your full circuit. Battery Friendly: The dark interface is efficient and easy on the eyes. Perfect For High-Intensity Interval Training (HIIT) Tabata and Circuit Training Boxing and MMA Rounds Yoga and Stretching Home Workouts and Calisthenics Stop wasting time setting up your timer. Download today and make every second count. Terms of Use: https://umutyenidil.com.tr/free-interval-timer/terms-of-use Privacy Policy: https://umutyenidil.com.tr/free-interval-timer/privacy-policy

About

Redline

This app simplifies sprint interval training for runners. It provides customizable countdowns, voice cues, and haptic feedback for each sprint and rest period. Sessions sync with Apple Health and can be controlled via Apple Watch and the Lock Screen.

Highlights
  • Customizable sprint and rest intervals
  • Voice cues for transitions
  • Apple Watch workout integration
  • Lock Screen Live Activity
  • Apple Health syncing
  • No account or subscription required
Features
Read full description

The sprint workout, made simple. Free, for iPhone and Apple Watch. Redline is a free sprint interval timer with nothing in the way. No account, no login, no feed, no subscription, no ads. Pick how many sprints you want, press start, and go run. The countdown, the voice in your ear, the tap on your wrist, the workout in Apple Health: all of it just happens. WHY SPRINT INTERVALS Thirty seconds flat out, a real rest, and again. It builds speed, top end fitness and power faster than anything else you can do in running shoes. The hard part was never the sprinting. It was keeping track of it while you are bent over gasping. That is the one job Redline does, and it does it well. SET IT IN THREE TAPS One to ten sprints. Fifteen to sixty seconds each. One to ten minutes of rest. Six sprints of thirty seconds with three minutes between them is the classic session and it is the default, so most days you just hit start. IT TALKS, SO YOU NEVER LOOK DOWN A ten second lead-in gets you to the line. Then a voice calls every moment that matters. Go. Halfway. Stop. Recover, three minutes. Ten seconds. The cues play right over Spotify, Apple Music or your podcast, with nothing to connect and nothing to set up. Lock the phone, put it in your pocket, and it keeps talking. MADE FOR APPLE WATCH Redline runs on Apple Watch as a full workout on its own. Leave the phone in the car, hit start on your wrist, and every transition arrives as a tap, plus the voice cues if you have AirPods in. Your settings stay in sync between the two, and a session finished on either one shows up in the same history. ON YOUR LOCK SCREEN A Live Activity keeps the current sprint and the time remaining on your Lock Screen and in the Dynamic Island, so a glance in the middle of a rest tells you exactly what is next. SAVES TO APPLE HEALTH Every finished session is saved to Apple Health as a high intensity interval workout, with a segment for every sprint. Run it from the Watch and it records heart rate and energy too. Redline also keeps a simple history and a day streak, stored on your phone and nowhere else. WHY THERE IS NO SKIP BUTTON The rest is the training. Thirty seconds is about as long as anyone can hold a true all-out effort, and the last sprint only counts if you are actually recovered when you start it. So Redline makes you wait. You will thank it on sprint six. ONE HONEST NOTE Redline is a timer, not medical advice. All-out sprinting is hard on the body. Warm up properly, and check with a doctor first if you have any reason to. Free. No ads. No subscription. No tracking. Just sprints.

Screenshots

New Interval Timer3 screens
Redline4 screens

Verdict

The call

The clearest difference is update cadence: Redline at weekly against New Interval Timer's every 6 months. New Interval Timer's advantage is iOS requirement (13.0 vs 16.2). On price, ads, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

New Interval Timer ships an update every 6 months, Redline weekly. The most recent releases landed on September 10, 2026 and September 20, 2026 respectively.

Scorecard2 real differences · 7 level
New Interval Timer versus Redline: the parameters behind the verdict, then further details
ParameterNew Interval TimerRedline
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 6 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, Apple Watch
Requires iOS13.0 — better16.2
Further details — not scored
Size18 MB2 MB
Age rating4+4+
DeveloperUMUT YENIDILSTEPHEN MARK SCHLESINGER

In-app purchases

None

New Interval Timer

No in-app purchases

None

Redline

No in-app purchases

Questions

Is New Interval Timer free?
New Interval Timer is free to download, with no in-app purchases.
Is Redline free?
Redline is free to download, with no in-app purchases.
Do New Interval Timer or Redline have ads?
Neither New Interval Timer nor Redline shows ads.
Which is updated more often, New Interval Timer or Redline?
New Interval Timer ships an update every 6 months, and Redline weekly. Most recently, New Interval Timer was updated on September 10, 2026 and Redline on September 20, 2026.

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