Comparison

PRO TREK Connected vs Timegrapher

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

Head to head
About

PRO TREK Connected

This app connects your compatible CASIO watch to your iPhone via Bluetooth. It enables various Mobile Link functions to enhance your watch experience and allows for simplified watch operations through your phone's screen. Data can be transferred to the new CASIO WATCHES app.

Highlights
  • Bluetooth watch connectivity
  • Mobile Link functions
  • Simplified watch operations
  • User data transfer
  • iPhone integration
Features
Read full description

Important - Please Read Request to Transfer to the CASIO WATCHES App (Support Termination Notification) The functionality of this app will be transferred to the new watch app, CASIO WATCHES. By updating to version 3.0, users of this app will be able to transfer their user data to CASIO WATCHES via this app. While we understand this may be inconvenient for some users, we ask that you transfer your data across, and continue using CASIO WATCHES in place of this app. Please see the support page for more details. https://world.casio.com/support/wat/info/20230322/en/ ●Description This is the basic application for connecting and communicating with a Bluetooth(R) v4.0 enabled CASIO watch. Pairing your watch with an iPhone enables use of a variety of different Mobile Link functions that greatly enhance the iPhone experience. The PRO TREK Connected app also simplifies certain watch operations by letting you perform them on your phone screen. Visit the website below for details. https://protrek.casio.com/ We recommend using PRO TREK Connected on the following operating systems. Operation is not guaranteed for any operating system not listed below. Even if an operating system has been confirmed as compatible, software updates or display specifications may prevent proper display and/or operation. ⋅ iOS 14 or later. Applicable Watches: PRT-B50, PRT-B70 *Some watches unavailable in your region may be displayed in the application. Continued use of GPS running in the background can dramatically decrease battery life.

About

Timegrapher

This application uses your device's microphone to measure the accuracy of mechanical watches. It detects ticking sounds to analyze beat rate, beat error, and amplitude, displaying results in real-time and over time.

Highlights
  • Detect BPH
  • Measure Beat rate
  • Measure Beat error
  • Measure Amplitude
  • Set Lift angle
  • Real-time sound display
  • Accuracy over time display
Features
Read full description

What is Timegrapher? Timegrapher measures the accuracy of your mechanical watch. The app uses your device's microphone to detect the ticking of your watch. Features: Detect BPH Measure Beat rate Measure Beat error Measure Amplitude Set Lift angle Display beat noises real time (unlock, impulse and lock sounds) Display accuracy and beat error over time More features will be coming soon.

Screenshots

PRO TREK Connected2 screens
Timegrapher3 screens

Verdict

The call

The clearest difference is rating: PRO TREK Connected at 4.6 against Timegrapher's 2.8. PRO TREK Connected also leads on in-app purchases (none vs 1) and update cadence (every 2 months vs every 8 months). On price, review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Timegrapher sells 1 one-off in-app purchase. PRO TREK Connected asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PRO TREK Connected holds the better App Store score, 4.6 against 2.8. That said, the two scores are not equally well evidenced: PRO TREK Connected has 345 ratings behind it against 46, so its average is the more settled of the two. Written reviews complicate that: 49% of PRO TREK Connected's written reviews are positive against 55% of Timegrapher's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

PRO TREK Connected ships an update every 2 months, Timegrapher every 8 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
PRO TREK Connected versus Timegrapher: the parameters behind the verdict, then further details
ParameterPRO TREK ConnectedTimegrapher
PriceFreeFree
Rating4.6 (345 ratings) — better2.8 (46 ratings)
Positive reviews49.2% of reviews55.0% of reviews — better
Number of ratings345 — better46
Update frequencyEvery 2 months — betterEvery 8 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS11.0 — better16.0
Further details — not scored
Size242 MB9 MB
Age rating4+4+
DeveloperCASIO COMPUTER CO., LTD.Attila Lelko

Customer experience

PRO TREK Connected

All ratings345 ratings
Positive91.3%
Neutral3.8%
Negative4.9%
Written reviews65 reviews
Positive49.2%
Neutral9.2%
Negative41.5%

Timegrapher

All ratings44 ratings
Positive40.9%
Neutral6.8%
Negative52.3%
Written reviews60 reviews
Positive55.0%
Neutral3.3%
Negative41.7%

User reviews

PRO TREK Connected

From 345 App Store ratings

What we love

  • 👍 Useful app for Pro Trek
  • ⌚️ Seamless watch connection
  • 🧭 Multifunctional watch features
  • 💪 Robust and durable watch
  • ⏱️ Accurate timekeeping

Room to improve

  • 📉 Complicated to use
  • ❓ Manual difficult to read
  • 🔌 Watch not connecting
  • ⏳ Auto backlight turns off
  • ⚙️ Watch constantly out of sync

Timegrapher

From 46 App Store ratings

What we love

  • 👍 Works great for some
  • 🎯 Accurate for some users
  • 💰 Good value for money (paid features)
  • 💡 Useful for watch regulation
  • 🎧 Works better with external mic

Room to improve

  • 😞 Doesn't work for many
  • 💸 Requires payment for full functionality
  • ❓ Scam accusations
  • 📱 Inconsistent readings
  • 🚫 No readings at all

Bugs and requests

PRO TREK Connected

Reported bugs

20 issues
  • New version not updating
  • Watch not connecting after update
  • Auto backlight turns off randomly
  • Step counter weekly view off by one day
  • Watch constantly out of time
Show 15 more
  • Pairing to iPhone fails
  • App force closes right after opening
  • App crashes after launch
  • Watch shows incorrect time after setup
  • Suddenly unable to connect
  • Pairing fails after app reinstall
  • Watch shows error message 'Recover' or date 1/01
  • Watch is constantly out of sync
  • Alarm buttons not active in app
  • Route is not recorded
  • App bounces after pairing
  • Cannot connect watch PRT-B50
  • Step counter overcounting
  • Cannot connect to iPhone 11
  • Cannot connect PRG-650Y

Requested features

15 requests
  • Add Russian language support
  • Improve app intuitiveness and simplicity
  • Add ability to locate lost watch
  • Enhance fishing port data
  • Increase domestic data
Show 10 more
  • Add option for auto light after sunset/before sunrise
  • Sync with standard Apple Health app
  • Translate pressure to mmHg
  • Add ability to add friends or join groups for step counter
  • Add option to add photos to fish memo
  • Add option to delete fish memo entries
  • Allow offline manual viewing
  • Support Apple Health for steps
  • Add import function for destination location
  • Add calibration options for stride distance

Timegrapher

Reported bugs

9 issues
  • Does not detect ticking
  • Does not work at all
  • Requires payment to function
  • Inaccurate readings
  • Unskippable pop-ups
Show 4 more
  • App magnetizes watch
  • Does not work after paying for premium
  • Amplitude reported as 360
  • Inconsistent measurements

Requested features

5 requests
  • Add dark mode
  • Keep screen on during use
  • Ability to save data per watch
  • Improve visual design
  • Lower price for Pro version

In-app purchases

None

PRO TREK Connected

No in-app purchases

1 purchases

Timegrapher

One-time1
  • Unlock full$5.99

Questions

Is PRO TREK Connected free?
PRO TREK Connected is free to download, with no in-app purchases.
Is Timegrapher free?
Timegrapher is free to download, with in-app purchases available.
Which has better reviews, PRO TREK Connected or Timegrapher?
PRO TREK Connected is rated higher. PRO TREK Connected averages 4.6 out of 5 from 345 ratings, while Timegrapher averages 2.8 from 46 ratings.
Do PRO TREK Connected or Timegrapher have ads?
Neither PRO TREK Connected nor Timegrapher shows ads.
Which is updated more often, PRO TREK Connected or Timegrapher?
PRO TREK Connected ships an update every 2 months, and Timegrapher every 8 months. Most recently, PRO TREK Connected was updated on November 6, 2026 and Timegrapher on November 3, 2026.

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