Comparison

phyphox vs PolyCM Connect

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

Head to head
About

phyphox

Unlock your phone's sensors for scientific exploration. Conduct pre-built experiments or create your own using accelerometers, magnetometers, and more. Analyze and export data in various formats for further study.

Highlights
  • Pre-defined experiments
  • Data export (CSV, TSV, Excel)
  • Web-based remote control
  • Custom experiment editor
  • Access to phone sensors
  • Advanced analysis functions
Features
Currently charting
Read full description

Did you know that you are carrying a 3D magnetometer? That you can use your phone as a pendulum to measure earth's local gravitational acceleration? That you can turn your phone into a sonar? phyphox gives you access to the sensors of your phone either directly or through ready-to-play experiments which analyze your data and let you export raw data along with the results for further analysis. You can even define your own experiments on phyphox.org and share them with colleagues, students and friends. Selected Features: • A selection of pre-defined experiments. Just press play to start. • Export your data to a range of widely used formats • Remote-control your experiment through a web interface from any PC on the same network as your phone. No need to install anything on those PCs - all you need is a modern web browser. • Define your own experiments by selecting sensor inputs, defining analysis steps and creating views as an interface using our web-editor (http://phyphox.org/editor). The analysis consists of just adding two values or using advanced methods like Fourier transforms and crosscorrelation. We offer a whole toolbox of analysis functions. Sensors supported: • Accelerometer • Magnetometer • Gyroscope • Pressure • Microphone • Proximity • GPS • Camera • LiDAR/ToF *some sensors are not present on every phone. Export formats • CSV (Comma separated values) • TSV (Tab-separated values) • Excel (if you need other formats, please let us know) This app has been developed at the 2nd Institute of Physics A at the RWTH Aachen University.

About

PolyCM Connect

This app serves as an official hub for a university's construction management department, connecting students, faculty, and industry professionals. It streamlines communication and provides access to events, directories, and real-time notifications for academic and professional success.

Highlights
  • Event and calendar management
  • Member directory with company profiles
  • Faculty and club directory
  • Info session registration
  • Real-time notifications
  • Unified platform for CM community
Features
Read full description

The Cal Poly Construction Management App is the official hub for students, faculty, and industry professionals in Cal Poly's Construction Management department. Designed to streamline communication and foster meaningful connections within the construction management community, this app brings together everything you need to succeed academically and professionally. Key Features: Event & Calendar Management: Stay updated with info sessions and club events in real-time. Member Directory: Connect with industry recruiters through searchable company profiles and contact information. Faculty & Club Directory: Access comprehensive faculty listings, office hours, expertise areas, and all CM-related clubs and organizations. Info Sessions: Register for and learn about company information sessions with complete event details. Real-Time Notifications: Receive instant updates on announcements, events, and opportunities that matter to you. Why Use This App? All-in-One Solution - Replace multiple apps and websites with one unified platform Always Connected - Notifications keep you informed about critical updates and opportunities Built for CM Community - Specifically designed for the unique needs of Cal Poly's Construction Management department Easy to Use - Intuitive interface makes navigating information easy Whether you're a student looking to advance your career, a faculty member engaging with students, or an industry partner connecting with talent, the Cal Poly Construction Management App is your gateway to opportunity. Download today and become part of the Cal Poly CM community.

Screenshots

phyphox4 screens
PolyCM Connect4 screens

Verdict

The call

The clearest difference is update cadence: PolyCM Connect at every 10 days against phyphox's every 3 months. PolyCM Connect also leads on rating (5.0 vs 4.6). phyphox's advantage is ratings volume (276 vs 2) and chart position (#207 vs unranked). 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

PolyCM Connect holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: phyphox has 276 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

phyphox ships an update every 3 months, PolyCM Connect every 10 days. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

Scorecard4 real differences · 7 level
phyphox versus PolyCM Connect: the parameters behind the verdict, then further details
ParameterphyphoxPolyCM Connect
PriceFreeFree
Rating4.6 (276 ratings)5.0 (2 ratings) — better
Positive reviews78.7% of reviews—
Number of ratings276 — better2
Update frequencyEvery 3 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#207 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size19 MB73 MB
Age rating4+4+
DeveloperRWTH Aachen UniversityKelsey Ginori

Customer experience

phyphox

All ratings276 ratings
Positive89.5%
Neutral4.0%
Negative6.5%
Written reviews267 reviews
Positive78.7%
Neutral3.4%
Negative18.0%

PolyCM Connect

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

phyphox

Reported bugs

21 issues
  • App crashes on older devices
  • Barometer not working on iOS 17.4
  • Network error: Generic error
  • Sound measurement curve disappears
  • App crashes frequently
Show 16 more
  • Cannot be opened on iPhone 6
  • Light sensor not implemented
  • Recording stops when phone is locked or app is minimized
  • Green lines on screen and faded to black after using barometer sensor
  • WLAN not working after using the app
  • Pressure no longer displayed on iOS 17.5
  • Barometer not working on iOS 17.4
  • Latest version cannot be opened on iPhone 6
  • Sound chronometer reset button not working
  • iPad destroyed after update
  • App displays Russian language by default
  • Experiments not working on iPhone 7
  • Magnetometer not working after update on iPhone 5s
  • GPS shows 0 satellites with 6m accuracy
  • App claims iPhone 11 is comparable to a low-cost tablet
  • App crashes every time

Requested features

33 requests
  • Add infrasound detector
  • More units of measurement (G-force, PSI, feet)
  • NFC/RFID support
  • In-app bug report feature
  • Allow other sensors via USB-C
Show 28 more
  • Ability to plug in external sensors
  • Slo-mo recording with timestamps
  • Add attitude sensor (roll, pitch, yaw)
  • Integration with Apple Shortcuts
  • Ability to record audio/dB simultaneously with other sensors
  • Adjustable sampling frequency for all sensors
  • Dark mode option
  • Experiment editor integrated into the app
  • More documentation for the editor
  • Ability to form averages
  • Support for older iPhones (iPhone 6)
  • Add GPS satellite count display
  • Add speedometer functionality
  • Add Lux measurement using light sensor/camera
  • Ability to play recorded audio
  • Limit input for sound analyzers (dB/Hz range)
  • Wi-Fi and RF module access for EMF analysis
  • iWatch integration
  • Improve audio generator capability
  • Allow background/screen locked recording
  • Add light sensor functionality
  • Change units of measurement
  • Add more precise measurements for static cases
  • Add FFT and spectral generation for accelerometer
  • Support for older devices
  • Improve UI/UX for new users
  • Add support for more languages
  • Add a donate option

PolyCM Connect

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

phyphox

No in-app purchases

None

PolyCM Connect

No in-app purchases

Questions

Is phyphox free?
phyphox is free to download, with no in-app purchases.
Is PolyCM Connect free?
PolyCM Connect is free to download, with no in-app purchases.
Which has better reviews, phyphox or PolyCM Connect?
PolyCM Connect is rated higher. phyphox averages 4.6 out of 5 from 276 ratings, while PolyCM Connect averages 5.0 from 2 ratings.
Do phyphox or PolyCM Connect have ads?
Neither phyphox nor PolyCM Connect shows ads.
Which is updated more often, phyphox or PolyCM Connect?
phyphox ships an update every 3 months, and PolyCM Connect every 10 days. Most recently, phyphox was updated on October 14, 2026 and PolyCM Connect on October 1, 2026.

Other comparisons