Comparison

pliability vs Treadmill Smart Speed

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

Head to head
About

pliability

Enhance flexibility, mobility, and recovery with guided stretching routines. This app offers personalized programs, progress tracking, and integrates with fitness devices to help users move better and prevent injuries.

Highlights
  • 1,700+ guided stretching routines
  • Customized mobility training programs
  • Instant start, no equipment required
  • Mobility Test for personalized assessment
  • Short, effective workouts (12-20 mins)
  • Offline video downloads
  • Integrates with WHOOP, Garmin, Apple Health
Features
Read full description

Improve flexibility, recover faster, and move better with pliability - the Official Stretching Partner of HYROX and the mobility app trusted by elite athletes. pliability is your daily stretching, mobility, and flexibility coach. Guided routines help you loosen tight hips, relieve back pain, increase range of motion, and build consistent recovery into your training - for athletes, weekend warriors, and anyone who sits too much. ■ WHY ATHLETES CHOOSE PLIABILITY + Trusted by Tia-Clair Toomey, Laura Horvath, Jake Dearden and thousands of gyms worldwide + Official Stretching Partner of HYROX + Featured by Runner's World, Men's Health, Well+Good, and Inc. Magazine + 1,700+ guided stretching and mobility routines + Programs built by world-class coaches and physical therapists ■ WHAT YOU GET + Daily stretching routines, 12–20 minutes each + Targeted sessions for hips, back, shoulders, hamstrings, and neck + Recovery flows to reduce muscle soreness after workouts + Deep flexibility programs - splits, backbends, overhead mobility + Yoga-inspired mobility flows for every level + No equipment required - start instantly ■ PERSONALIZED TO YOU + Recommended sessions built around the areas you care about, refreshed every week + Set your session length before you start: short, medium, or long + Ask in your own words: "15 minute hip opener before a run" + Save favorites and build your own sessions ■ BUILT FOR EVERY ATHLETE + HYROX, CrossFit & functional fitness + Running, cycling & endurance sports + Weightlifting & strength training + Golf, swimming & combat sports + Yoga, Pilates & general wellness ■ MEASURE YOUR PROGRESS (iPhone + iPad) Our Mobility Test uses advanced on-device technology to measure your active range of motion. + Personalized 3-minute assessment + Detailed report with custom stretching recommendations + Track improvement over weeks and months ■ TRAIN ANYWHERE + Stream on iPhone, iPad, Apple TV, or AirPlay + Download any routine for offline sessions + Short sessions fit any schedule ■ CONNECTS TO YOUR DATA + Syncs with WHOOP, Garmin, and Apple Health + See how mobility work affects your recovery scores + Build smarter recovery into your training load ■ MIND-BODY FOCUS + Breathwork and mindfulness cues in every session + Calm your nervous system while you move + Build a stretching habit that actually sticks Ready to move better? Download pliability and start your 7-day free trial. Get the full library of stretching, mobility, yoga, and recovery routines - trusted by HYROX, CrossFit champions, and athletes who train for performance. Stretch. Move. Recover. pliability move more human.™ Terms of Service: https://pliability.com/terms-of-service Privacy Policy: https://pliability.com/privacy-policy/

About

Treadmill Smart Speed

This app transmits your treadmill running speed from your iPhone or Apple Watch to a receiving device via Bluetooth. It offers multiple input methods, including manual treadmill speed selection, iPhone motion sensing, and Apple Watch data integration for speed, cadence, and heart rate.

Highlights
  • Transmit treadmill speed via Bluetooth
  • iPhone motion sensor speed estimation
  • Apple Watch speed, cadence, and heart rate transmission
  • Manual speed control via crown
  • Integrates with iPhone Health App
  • Compatible with BLE 4.0 Macs
Features
Read full description

Your treadmill, on Zwift. Treadmill Smart Speed turns your iPhone into a Bluetooth running speed and incline sensor. Set the speed you are running on screen and your iPhone broadcasts it, exactly as a footpod would — so Zwift, and any other app that reads a running sensor, sees your treadmill. No footpod, no treadmill upgrade, no extra hardware. GETTING CONNECTED 1. Start pairing in Zwift. Open the pairing screen and choose the run speed sensor slot. 2. Look for this iPhone by its own name. The app cannot change how it appears — to change what Zwift shows, rename the phone in Settings › General › About › Name. 3. Wait for the pill to turn green. It reads Connected once a fitness app is receiving speed. Until then it reads Discoverable. BUILT TO BE READ MID-RUN The screen is made to be read at arm's length, in a dim room, while you are running. The speed being broadcast owns the display, and every control sits in the half a thumb reaches. • A large speed readout with your current pace beneath it • Plus and minus keys that step in 0.1 increments • Six presets you set to your own paces, one tap each • Incline, sent alongside speed • Metric or imperial, chosen separately for speed and for pace • Keeps broadcasting in the background, so glancing at another app does not drop the connection APPLE WATCH The Apple Watch app estimates your speed and cadence from your wrist and reads your heart rate, then streams them to your iPhone. Your iPhone broadcasts the speed, and your heart rate as a heart-rate sensor that Zwift can pair too. Your run is saved to Health as a workout. IF YOU BOUGHT THE ORIGINAL APP It stays yours. Everything in this version is free for you, for ever — no subscription, nothing to restore. It is recognised automatically from your Apple Account, on any of your devices. FREE TO TRY Every feature is free for a 10-minute run, with an hour between free runs. When a free run ends, the speed sent drops to zero until you unlock. Unlock forever is a one-time purchase with no subscription. Every run is then unlimited, and the unlock is shared with your family through Family Sharing. The price is shown before you buy. Privacy policy: https://appyappster.com/privacy Support: https://appyappster.com/support

Screenshots

pliability4 screens
Treadmill Smart Speed4 screens

Verdict

The call

The clearest difference is rating: pliability at 4.8 against Treadmill Smart Speed's 3.3. pliability also leads on update cadence (every 5 days vs every 2 months) and ratings volume (10K vs 24). Treadmill Smart Speed's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, in-app purchases, device support and iOS requirement 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. pliability sells 2 in-app purchases, starting at $19.99 per month and Treadmill Smart Speed sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

pliability holds the better App Store score, 4.8 against 3.3. That said, the two scores are not equally well evidenced: pliability has 10K ratings behind it against 24, so its average is the more settled of the two. Written reviews complicate that: 41% of pliability's written reviews are positive against 53% of Treadmill Smart Speed's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

pliability ships an update every 5 days, Treadmill Smart Speed every 2 months. The most recent releases landed on October 20, 2026 and October 19, 2026 respectively.

Scorecard6 real differences · 4 level
pliability versus Treadmill Smart Speed: the parameters behind the verdict, then further details
ParameterpliabilityTreadmill Smart Speed
PriceFreeFree
Rating4.8 (10K ratings) — better3.3 (24 ratings)
Positive reviews40.8% of reviews52.6% of reviews — better
Number of ratings10K — better24
Update frequencyEvery 5 days — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple TV — betteriPhone, Apple Watch
Requires iOS16.6 — better17.0
Further details — not scored
Size263 MB3 MB
Age rating12+4+
Developerpliability, LLCAppyAppster Ltd

Customer experience

pliability

All ratings10,107 ratings
Positive95.8%
Neutral1.0%
Negative3.3%
Written reviews557 reviews
Positive40.8%
Neutral9.0%
Negative50.3%

Treadmill Smart Speed

All ratings24 ratings
Positive58.3%
Neutral4.2%
Negative37.5%
Written reviews57 reviews
Positive52.6%
Neutral3.5%
Negative43.9%

User reviews

pliability

From 10K App Store ratings

What we love

  • 🌟 Life-changing for mobility and recovery
  • 👍 Consistent daily routines
  • 🧘‍♀️ Meditative and calming experience
  • 🏋️‍♀️ Effective for athletes and active individuals
  • 🔍 Detailed mobility assessment

Room to improve

  • 🐛 Buggy app with frequent crashes and glitches
  • 💰 Expensive subscription
  • 🔇 Intrusive and repetitive voiceover
  • 🤔 Lack of customization options
  • 📚 Repetitive and limited exercise selection

Treadmill Smart Speed

From 24 App Store ratings

What we love

  • 👍 Works with Zwift
  • 💰 Affordable alternative
  • 🏃‍♀️ Enables Zwift running
  • ✅ Solves treadmill speed issues
  • 💡 Good for budget-conscious users

Room to improve

  • 🐛 Connection issues
  • 🐛 Speed not detected
  • 🐛 Laggy updates
  • 🐛 Accelerometer mode unreliable
  • 🐛 Disclaimer pops up frequently

Bugs and requests

pliability

Reported bugs

5 issues
  • Inability to cancel subscription easily
  • Recurring charges even after cancellation
  • Mobility assessment not accurately detecting issues
  • Syncing issues between app and website
  • Airplay and Chromecast functionality not working reliably

Requested features

5 requests
  • Ability to mute or adjust volume of voiceover and music separately
  • More personalized and adaptive mobility programs based on assessment
  • Integration with Apple Health and other fitness tracking platforms
  • Improved navigation and search functionality
  • Offline mode for routines

Treadmill Smart Speed

Reported bugs

24 issues
  • Problems reported with Zwift connectivity
  • Doesn't show up on Bluetooth in Zwift
  • Slow response time from armband mode
  • Speed not detected in Zwift
  • Intermittent information transmission
Show 19 more
  • Hefty lag in updating speed on Zwift
  • Accelerometer mode largely useless
  • Disclaimer needs to be tapped away every time
  • Armband doesn't work
  • Does not transfer right speed
  • Connected to Zwift but not working
  • Doesn't connect to Zwift
  • Not working out of a sudden
  • Disconnects every time
  • Bluetooth connectivity with Zwift issue
  • iPhone Speed Sensor doesn't work
  • Apple Watch app says 'not Connected to iPhone'
  • No data transmitted to Zwift
  • Doesn't work
  • No support from link
  • Can't get any feedback on iPhone
  • App did not work
  • Will not pair with Zwift
  • New update won't allow update on iPad Pro

Requested features

7 requests
  • Improve response time for armband mode
  • Allow app to work in background
  • Develop for Zwift bike with Power (Watt)
  • Make app available in more countries
  • Provide instructions for Apple TV connection
Show 2 more
  • Forward other BLE sensors (heart rate, cadence) for Apple TV
  • UI polish

In-app purchases

2 purchases

pliability

Subscriptions2
  • Athlete Monthly Subscription7 Days trial$19.991 Month
  • Athlete Annual Subscription7 Days trial$179.991 Year
1 purchases

Treadmill Smart Speed

One-time1
  • Unlock forever$9.99

Questions

Is pliability free?
pliability is free to download, with in-app purchases available.
Is Treadmill Smart Speed free?
Treadmill Smart Speed is free to download, with in-app purchases available.
Which has better reviews, pliability or Treadmill Smart Speed?
pliability is rated higher. pliability averages 4.8 out of 5 from 10K ratings, while Treadmill Smart Speed averages 3.3 from 24 ratings.
Do pliability or Treadmill Smart Speed have ads?
pliability shows ads; Treadmill Smart Speed does not.
Which is updated more often, pliability or Treadmill Smart Speed?
pliability ships an update every 5 days, and Treadmill Smart Speed every 2 months. Most recently, pliability was updated on October 20, 2026 and Treadmill Smart Speed on October 19, 2026.

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