Comparison

Reflex Trainer vs Shadow Boxing App

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

Head to head
About

Reflex Trainer

Features
Read full description

Reflex Trainer measures your reaction time with precision, using real motion detected by your Apple Watch or iPhone. How It Works A visual stimulus flashes on your screen. React as fast as you can by throwing a punch (detected by your Apple Watch or iPhone accelerometer at 50Hz). Your reaction time is measured in milliseconds. Two Training Modes Combat Sports Mode Designed for boxing, MMA, kickboxing, and martial arts athletes. Throw a real punch when you see the flash. Your Apple Watch detects the motion, no screen tapping needed. Hold your phone in your fist as a fallback when training without a watch. General Reaction Mode A classic reaction time test for anyone. Tap the screen or move your wrist the instant you see the stimulus. Perfect for gamers, athletes, and anyone who wants to measure and improve their reflexes. Live 1v1 Duels Challenge a friend to a real-time reflex showdown. Share a code over iMessage or jump into the public lobby for a quick match. Both phones fire the same stimulus at the exact same moment, with server-authoritative timing keeping every round fair. Best of 1, 3, 5, or 10 rounds. Fastest reaction wins. Friends, Stats & History (NEW) Your Profile now has three tabs: Stats for your personal bests, History for every session you've ever run, and Friends for the people you train against. Add friends by username, get a push notification when they accept, and tap any past session to see every individual rep. Compare reaction times head to head and track your progress over time. Three Difficulty Levels - Easy: punch when you see red - Medium: no early punches allowed - Hard: distractor flashes appear, only red counts Climb the Leaderboards Sign in with Apple to track personal bests and rank globally. Every solo session and every clean duel feeds the same leaderboard, ranked by mode, difficulty, and round count. Your duel results count toward your personal bests too. Key Features - Apple Watch integration with real-time accelerometer punch detection - Live 1v1 duels with server-synchronised stimulus timing - Public lobby and quick match for instant duels - Friends list with mutual approval and push notifications - Full session history with per-rep breakdown - Three difficulty levels (Easy, Medium, Hard) - Customisable rounds (1 to 10 per session) - Per-round breakdown with average, best, and worst times - Global and weekly leaderboards - Personal bests tracked per mode and difficulty - Sign in with Apple (no email or password required) - Works with or without Apple Watch - No ads. No subscriptions. Who Is This For? - Boxers, MMA fighters, and combat sports athletes - Martial arts practitioners training reaction speed - Gamers looking to benchmark and improve reaction time - Personal trainers and coaches measuring client reflexes - Friends who want to settle who really has the faster reflexes - Anyone curious about their reaction speed Start training. Challenge a friend. Get faster.

About

Shadow Boxing App

This app transforms your iPhone into an interactive boxing training experience. Use your body as the controller to punch, slip, and block visual targets. It offers customizable workouts, progress tracking, and a unique boxing timer, all without needing extra equipment.

Highlights
  • Augmented reality boxing training
  • Body as controller
  • Customizable workout combinations
  • Tempo-based training
  • Gesture-controlled boxing timer
  • Defensive movement training
  • Workout tracking and history
Features
Read full description

BOXING. TURNED INTO A GAME. AR Boxing turns your iPhone into an interactive boxing training experience. Set down your phone, step into frame, and use your body as the controller. Punch, slip, roll, block, and react to visual targets while your iPhone tracks your movement. Whether you're throwing your first jab or already train regularly, AR Boxing gives you a new way to practice, move, and stay consistent. INTERACTIVE BOXING WORKOUTS Your body is the controller. Follow visual targets through punches, combinations, and defensive movements. Train jabs, crosses, hooks, uppercuts, body shots, slips, rolls, blocks, and more. NEVER WONDER WHAT TO TRAIN NEXT Start with Basic Training and progress into combinations, defense, timing, and rhythm. Already box? Jump into more advanced training or create exactly what you want to work on. BUILD YOUR OWN COMBOS Build the workout you actually want. Combine punches, defensive movements, rests, repetitions, and tempo into custom boxing drills. Build it. Save it. Train it. TRAIN AT YOUR PACE Start slow. Build the movement. Turn up the tempo when you're ready. Use tempo-based training to work on combinations and rhythm at a pace that works for you. STOP TAKING OFF YOUR GLOVES AR Boxing includes a dedicated boxing timer you can control with boxing gestures. Set your phone down and train on the heavy bag. When the round ends, return to camera range and use punch gestures to control your timer instead of trying to tap small buttons while wearing boxing gloves. Keep your gloves on. Keep training. PUNCH. SLIP. ROLL. REACT. Boxing isn't only about throwing punches. AR Boxing incorporates defensive movements including slips, rolls, and guard movements into interactive training sessions. MAKE EVERY ROUND COUNT Track your workouts, scores, achievements, personal bests, and training history. Build consistency. Beat your previous performance. Keep showing up. TRAIN WITH INTENT AR Boxing detects your interaction with training targets. You decide how you perform the movement. Throw the real punch. Return to guard. Move with control. Quality over shortcuts. YOUR CAMERA. YOUR WORKOUT. AR Boxing uses the iPhone front camera for on-device movement tracking. Body tracking is processed on your iPhone. Workout video is not uploaded for movement analysis. No account is required. No wearable sensors. No headset. No special tracking equipment. Just your iPhone and your next round. Privacy Policy https://arboxing.app/privacy/ Terms of Service https://arboxing.app/terms/

Screenshots

Reflex Trainer2 screens
Shadow Boxing App4 screens

Verdict

The call

The clearest difference is in-app purchases: Reflex Trainer at none against Shadow Boxing App's 2. Reflex Trainer also leads on device support (3 vs 1) and iOS requirement (17.0 vs 26.0). On price, update cadence and ads 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. Shadow Boxing App sells 2 in-app purchases, starting at $4.99 per 7 days. Reflex Trainer asks for nothing beyond the download.

UpkeepUpdate frequency

Reflex Trainer ships an update every 5 days, Shadow Boxing App every 6 days. Both last shipped on October 12, 2026.

Scorecard3 real differences · 7 level
Reflex Trainer versus Shadow Boxing App: the parameters behind the verdict, then further details
ParameterReflex TrainerShadow Boxing App
PriceFreeFree
Rating—4.9 (8 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—8 — better
Update frequencyEvery 5 days — betterEvery 6 days
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS17.0 — better26.0
Further details — not scored
Size7 MB21 MB
Age rating4+12+
DeveloperMax SzolcekTimothy Sison

In-app purchases

None

Reflex Trainer

No in-app purchases

2 purchases

Shadow Boxing App

Subscriptions2
  • Weekly$4.997 Days
  • Yearly$39.991 Year

Questions

Is Reflex Trainer free?
Reflex Trainer is free to download, with no in-app purchases.
Is Shadow Boxing App free?
Shadow Boxing App is free to download, with in-app purchases available.
Do Reflex Trainer or Shadow Boxing App have ads?
Neither Reflex Trainer nor Shadow Boxing App shows ads.
Which is updated more often, Reflex Trainer or Shadow Boxing App?
Reflex Trainer ships an update every 5 days, and Shadow Boxing App every 6 days. Most recently, Reflex Trainer was updated on October 12, 2026 and Shadow Boxing App on October 12, 2026.

Other comparisons