Seam vs Reactr
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Seam
This app allows coaches and players to capture, analyze, and understand pitching performance from their mobile device. Log pitch details in real-time, organize pitcher profiles, and review game data for in-depth post-game analysis.
- Real-time pitch logging
- Pitch type, location, and velocity tracking
- Pitcher profile management
- In-depth post-game analysis
- Customizable preferences
- Local data saving
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Chart every pitch. Win the matchup. Seam is the fastest way to chart, analyze, and understand pitching performance — capturing every pitch in real time and turning it into insight, right from your phone. From the first warm-up toss to the final out: capture it, break it down, and act on it. CHART EVERY PITCH, EVERY GAME Record pitches in real time with an interface built for the speed of the game. Tap location, type, result, and velocity so nothing slips through the cracks. • Plot exact pitch location on the strike zone • Track pitch type, velocity, and result in one tap • Live count, outs, and batters faced always in view STATS THAT TELL THE STORY The moment the game ends, Seam turns your chart into a full breakdown — staff box score, strike percentage, first-pitch strike rate, and an overall game score. • Staff and per-pitcher box scores • Strike % and first-pitch-strike % at a glance • Game Score built on a run-expectancy model SEE EVERY PITCH IN CONTEXT The pitch-location map plots every pitch by type so tendencies jump off the screen. Filter by pitcher, count, result, or batter hand to answer any question in seconds. • Color-coded location map by pitch type • Filter by count, result, and batter handedness • Spot patterns across an outing instantly THE WHOLE OUTING, PITCH BY PITCH Every pitch is logged in order with type, velocity, result, and the count it came in — grouped by inning and batter, with a running line score as the game unfolds. • Color-coded by pitch type with velocity and result • Broken out by inning, batter, and handedness • Running PC, BF, H, SO, and BB totals per inning BUILT AROUND YOUR ROSTER Save pitcher profiles to keep your staff organized and start a new game in seconds. Revisit any saved game for post-game analysis whenever you need it. • Reusable pitcher profiles with their arsenals • Every game saved and ready to review • Configure velocity input and your preferred units FOCUSED ON THE GAME No clutter, no noise — just the tools that help you get better. • Private by default. Without an account, everything stays on your device. Seam never sells your information. • Zero ads. Your focus belongs on the field, not on dismissing pop-ups. • Ready anywhere. No connection required — chart a game from any field, any time. SEAM PRO Seam Pro keeps your entire program in sync. Back up every chart to the cloud, work across all your devices, and make smarter calls from the dugout. • Cloud Backup — every chart saved securely with industry-standard encryption • Unlimited Devices — sign in anywhere and pick up right where you left off • Offline Sync — chart with no signal; everything syncs the moment you reconnect From rec leagues to the pros, Seam is your pitch-charting companion. Download free and chart your first game in minutes. https://get-seam.com/privatepolicy.html
Reactr
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Know exactly what your hitters are training against. Reactr converts pitching machine speeds into equivalent game speeds — so every rep at practice delivers the reaction time your hitters will actually face in a game. Set a machine speed, set your practice distance, and Reactr instantly shows the game-equivalent velocity and reaction time your hitters are reacting to. Switch to Game Speed mode and work backwards — tell Reactr the game speed you want to simulate and it tells you exactly what to dial into the machine. Used by baseball and softball coaches who want their practice reps to mean something. ——— HOW IT WORKS ——— A pitching machine set to 60 mph at 40 feet doesn't give hitters the same reaction time as a 60 mph game pitch. The distance is different. The math matters. Reactr does the math instantly — so you can stop guessing and start building practices that match the real demands of the game. ——— TWO MODES ——— MACHINE SPEED MODE Know what your machine setting actually simulates. Dial in your machine speed and practice distance. Reactr shows the equivalent game speed, reaction time in milliseconds, and a color-coded difficulty rating. Blue through red — easy to track all the way up to elite velocity. GAME SPEED MODE Work backwards from the game. Set the game speed you want your hitters to train against and your practice distance. Reactr tells you exactly what to set your machine to. Perfect for building progressions that target specific reaction windows. ——— KEY FEATURES ——— EQUIVALENT GAME SPEED See the true game-speed equivalent of any machine setting at any distance. Baseball and softball. Every level of play. REACTION TIME Know exactly how many milliseconds your hitters have to decide and swing. Under 400 ms is elite. Reactr shows you where every rep falls. SPEED COLOR ZONES Blue = Easy to track. Green = Developing challenge. Gold = Competitive speed. Orange = Advanced velocity. Red = Elite. The ring updates live as you adjust. SHARE YOUR SETUP Text your practice configuration to the coach setting up the machine. Machine speed, practice distance, equivalent game speed, and reaction time — one tap, sent. BASEBALL AND SOFTBALL Full support for both sports with separate speed ranges, distance ranges, and game distances. Dial in the official game distance for your specific level of play in Settings. ——— BUILT FOR THE DUGOUT ——— Works completely offline — no WiFi or cellular required No account, no sign-in, no cloud Optimized for iPhone and iPad Portrait and landscape support Free. No trial. No subscription. No catch. ——— WHO IT'S FOR ——— Travel ball coaches. High school programs. College staffs. Batting cage instructors. Anyone running a pitching machine who wants their hitters training at the right reaction speed — not just the right number on the dial. Reactr requires iOS 17 or later. Compatible with iPhone and iPad.
Screenshots
Verdict
The clearest difference is in-app purchases: Reactr at none against Seam's 1. Reactr also leads on iOS requirement (17.6 vs 26.1). Seam's advantage is update cadence (every 2 months vs every 8 months). On price, ads 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. Seam sells 1 in-app purchase, starting at $19.99 per year. Reactr asks for nothing beyond the download.
Seam ships an update every 2 months, Reactr every 8 months. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.
| Parameter | Seam | Reactr |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.1 | 17.6 — better |
| Further details — not scored | ||
| Size | 16 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | LGT Productions | Adam Joseph |
In-app purchases
Seam
- ArmBarn Pro$19.991 Year
Reactr
No in-app purchases








