Comparison

Arm Speed Motion Analyzer vs TechDisc

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

Head to head
About

Arm Speed Motion Analyzer

Measure throw and swing speeds without specialized equipment. This app uses your iPhone or Apple Watch motion sensors to provide real-time feedback for various sports. Track progress, set personal records, and analyze trends to train smarter.

Highlights
  • Real-time speed detection
  • iPhone and Apple Watch compatibility
  • Supports multiple sports
  • Personal records and achievements
  • Weekly trends and analytics
  • Health app integration
Features
Read full description

Track your arm speed, no radar gun needed. Arm Speed uses motion sensors on your iPhone or Apple Watch to measure throw and swing speed in real time. Built for athletes who want to train smarter and track progress across every session. WORKS WITH iPHONE AND APPLE WATCH Version 3.0 introduces iPhone motion tracking: just hold your phone and throw or swing. Apple Watch support is still here and better than ever. Train with whichever device you have on hand. REAL-TIME SPEED TRACKING See your speed instantly after every throw or swing. Arm Speed detects each motion automatically, no buttons to press, just start a session, do your thing, and watch the numbers appear. See device acceleration change in realtime: even the slightest device jiggle will impact real time acceleration. SEE YOUR MOTION PATH Go beyond the number. Every throw and swing is captured as a 3D motion path, a ribbon that traces your arm through the air. Thicker means faster, and color grades your smoothness from fluid green to jagged red. Spin the path around, compare reps, and spot hitches in your mechanics that a speed reading alone can't show. PERSONAL RECORDS AND ACHIEVEMENTS Track your all-time top speed, best session, longest streak, and more. Unlock achievements as you hit milestones., from your first 30 MPH throw to logging your 1,000th rep. Celebration animations fire off when you break a record or unlock something new. WEEKLY TRENDS AND ANALYTICS See how your speed and volume change week over week. A ghost line overlays your previous week so you can visualize improvement at a glance. Speed band breakdowns show where your throws are clustering, and daily activity heatmaps keep you accountable. HEALTH APP INTEGRATION Every session can log as a workout in Apple Health with heart rate tracking. Your training data lives alongside the rest of your fitness profile. FREE TO USE Arm Speed is free to download and start tracking. Upgrade to Arm Speed Pro to unlock interactive 3D motion paths, unlimited session history, search and filters across your sessions, advanced speed and acceleration charts, custom chart date ranges, bulk session management, personal records, achievements, and weekly trends. BUILT FOR YOUR SPORT Baseball throwing and batting Disc golf and frisbee throws Softball pitching and hitting Pickleball serves and volleys Tennis serves and groundstrokes Golf swing speed Football throws Cricket bowling and batting Hockey and lacrosse stick speed Badminton, racquetball, and more Website: https://armspeed.app Follow @arm_speed_app on Instagram for news and updates. Questions or feedback? Email: feedback@fre-studios.com Terms of Service: https://armspeed.app/legal/terms Privacy Policy: https://armspeed.app/legal/privacy

About

TechDisc

This app connects to a specialized disc golf sensor to measure key throwing metrics like spin, speed, and angles. It helps disc golfers analyze their throws, identify throw types, and track progress for improved performance.

Highlights
  • Measure spin, speed, nose angle, hyzer, launch angle, and wobble
  • Connects to TechDisc hardware sensor
  • Identifies throw types (backhand, forehand, etc.)
  • Analyzes throw angles (flat, hyzer, anhyzer)
  • Tracks drive, upshot, and standstill performance
  • Calculates average spin for different throws
Features
Read full description

TechDisc for iOS makes it simple to connect to your TechDisc and begin measuring Spin, Speed, Nose angle, Hyzer angle, Launch angle and Wobble at home in your net or at the practice field. TechDisc is an innovative new tool to Know Your Throw, with hardware and software designed by disc golfers to accelerate every athlete's progression in the sport. A suite of sensors permanently attached to the center of a golf disc measures the forces and angles put on a disc. The data is transmitted to the app and uploaded to the cloud to crunch the data and determine throw type (Backhand, Forehand, Thumber, etc.) and angle (Flat, Hyzer, Anhyzer) to easily sort and filter your throws. Measure your drive, upshots, standstills, hyzers, rollers and anything else you want to improve. Find average spin for your forehand shots and backhand shots with a tap. Know if that 70 MPH throw was a fluke or if you can count on it consistently. Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Arm Speed Motion Analyzer4 screens
TechDisc3 screens

Verdict

The call

The clearest difference is review sentiment: TechDisc at 76% against Arm Speed Motion Analyzer's 31%. TechDisc also leads on rating (4.7 vs 4.2) and ratings volume (238 vs 11). Arm Speed Motion Analyzer's advantage is update cadence (fortnightly vs monthly). On price, ads, in-app purchases and monetization model 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. Arm Speed Motion Analyzer sells 3 in-app purchases, starting at $0.99 per month and TechDisc sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

TechDisc holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: TechDisc has 238 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 31% of Arm Speed Motion Analyzer's written reviews are positive against 76% of TechDisc's.

UpkeepUpdate frequency

Arm Speed Motion Analyzer ships an update fortnightly, TechDisc monthly. The most recent releases landed on September 25, 2026 and September 28, 2026 respectively.

Scorecard5 real differences · 5 level
Arm Speed Motion Analyzer versus TechDisc: the parameters behind the verdict, then further details
ParameterArm Speed Motion AnalyzerTechDisc
PriceFreeFree
Rating4.2 (11 ratings)4.7 (238 ratings) — better
Positive reviews30.8% of reviews76.3% of reviews — better
Number of ratings11238 — better
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS18.116.4 — better
Further details — not scored
Size11 MB39 MB
Age rating4+4+
DeveloperFRE STUDIOS LLCTech Disc Inc.

Customer experience

Arm Speed Motion Analyzer

All ratings11 ratings
Positive81.8%
Neutral0.0%
Negative18.2%
Written reviews26 reviews
Positive30.8%
Neutral11.5%
Negative57.7%

TechDisc

All ratings238 ratings
Positive93.3%
Neutral2.5%
Negative4.2%
Written reviews38 reviews
Positive76.3%
Neutral5.3%
Negative18.4%

In-app purchases

3 purchases

Arm Speed Motion Analyzer

Subscriptions2
  • Arm Speed Pro Monthly7 Days trial$0.991 Month
  • Arm Speed Pro7 Days trial$9.991 Year
One-time1
  • Arm Speed Analyzer Pro$2.99
2 purchases

TechDisc

Subscriptions2
  • TechDisc Premium (1 Month)7 Days trial$9.991 Month
  • TechDisc Premium (1 Year)7 Days trial$99.991 Year

Questions

Is Arm Speed Motion Analyzer free?
Arm Speed Motion Analyzer is free to download, with in-app purchases available.
Is TechDisc free?
TechDisc is free to download, with in-app purchases available.
Which has better reviews, Arm Speed Motion Analyzer or TechDisc?
TechDisc is rated higher. Arm Speed Motion Analyzer averages 4.2 out of 5 from 11 ratings, while TechDisc averages 4.7 from 238 ratings.
Do Arm Speed Motion Analyzer or TechDisc have ads?
Neither Arm Speed Motion Analyzer nor TechDisc shows ads.
Which is updated more often, Arm Speed Motion Analyzer or TechDisc?
Arm Speed Motion Analyzer ships an update fortnightly, and TechDisc monthly. Most recently, Arm Speed Motion Analyzer was updated on September 25, 2026 and TechDisc on September 28, 2026.

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