WOD Machine vs Redline
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WOD Machine
Discover your next functional fitness workout quickly with a vast library of training sessions. Tailor workouts to your goals, time, and equipment using a smart builder, and track your progress by logging results. Designed for efficient training with built-in timers.
- Generate random WOD-style workouts
- Browse workouts by category, length, and difficulty
- Smart Builder for personalized sessions
- Built-in timers for various workout types
- Save favorite workouts
- Log completed sessions and track history
- Track scores, times, reps, and loads
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WOD Generator helps you find your next functional fitness workout fast. Browse a large library of training sessions across Hero, Girls, Travel, Benchmark, AMRAP, Power, Endurance, and more. Whether you want a quick bodyweight burner, a classic benchmark, a conditioning test, or a heavier strength-focused session, WOD Generator gives you a clear workout and gets you moving. Use Smart Builder to match a workout to your goal, available time, equipment, and intensity. Save your favourites, log your results, and come back later to track progress and beat your previous scores. Features: - Generate random WOD-style workouts - Browse workouts by category, length, timer type, and difficulty - Use Smart Builder to find a session that fits your day - Built-in timers for AMRAP, For Time, EMOM, countdown, and stopwatch workouts - Save favourite workouts - Log completed sessions and review your history - Track scores, times, reps, loads, and scaled/RX results - Works great for home, gym, travel, and garage training WOD Generator is built for people who want less scrolling and more training. Open the app, pick a workout, start the timer, and get after it. Disclaimer: The workouts, exercises, and movement suggestions in this app are provided for informational and general fitness purposes only. They are not a substitute for professional coaching, medical advice, or personalised training programming. Always consult a physician or qualified healthcare provider before starting any exercise or fitness program, especially if you have any medical condition, injury, or concern. This app is not affiliated with, endorsed by, or associated with CrossFit, Inc.
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.
- 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
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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
Verdict
The clearest difference is in-app purchases: Redline at none against WOD Machine's 1. Redline also leads on ads (none vs shown) and update cadence (weekly vs every 11 months). On price, rating, ratings volume 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
Both are free to download. WOD Machine sells 1 one-off in-app purchase. Redline asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for WOD Machine against 5.0 for Redline. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
WOD Machine ships an update every 11 months, Redline weekly. The most recent releases landed on September 28, 2026 and October 7, 2026 respectively.
| Parameter | WOD Machine | Redline |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 11 months | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Requires iOS | 18.6 | 16.2 — better |
| Further details — not scored | ||
| Size | 10 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Aaron Rockett | STEPHEN MARK SCHLESINGER |
Customer experience
WOD Machine
Redline
In-app purchases
WOD Machine
- Unlock Pro Version$1.99
Redline
No in-app purchases









