Comparison

phyphox vs DLB Career Toolkit

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
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

DLB Career Toolkit

This app provides interactive checklists and guides for engineering students to prepare for job applications, interviews, and offer negotiations. It offers offline access to essential career-building resources, helping users track their progress at their own pace.

Highlights
  • Resume writing checklist
  • Interview preparation guide
  • Post-interview follow-up checklist
  • Offer acceptance guide
  • Elevator pitch template
  • Offline progress tracking
  • Light and dark mode support
Features
Read full description

DLB Career Toolkit is the companion app to the Cal Poly Pomona Dean's Leadership Board (DLB) EngX Seminar Series career-prep program. It distills the program's printed handouts into interactive, progress-tracking checklists you can use offline at your own pace — and now tracks every application you pursue, from first research to final decision. WHAT'S INSIDE • Resume Checklist — every step of writing a quality engineering résumé, from contact info through formatting and final review • Interview Prep Checklist — what to research, what to bring, how to dress, and how to answer behavioral and technical questions • Follow-Up Checklist — closing the deal after your interview, thank-you etiquette, and salary discussion prep • What's Next Checklist — accepting an offer, what happens between offer and start date, and setting yourself up for day one • Elevator Pitch Guide — a fill-in-the-blank template for your 30-second introduction OPPORTUNITY TRACKER • One checklist per application — internship or full-time — that walks each opportunity stage by stage: research and qualify, tailor your materials, apply, recruiter screen, interviews, follow-up and waiting, offer and negotiation, decision and close-out • Every stage links to the right prep checklist, Elevator Pitch section, or journal prompt at the moment it matters • Key dates with reminders — application deadlines, screens, interview rounds, follow-ups, and offer response dates, with reminders from a week ahead to the moment itself • A private journal for each opportunity: your notes and lessons learned, plus an automatic history of what you set and decided • Record how each one ended — accepted, declined, withdrawn, or not selected — then archive it and keep the record • Share any opportunity as a PDF, with or without its journal, to review with a mentor or advisor KEY FEATURES • Persistent progress tracking across all four checklists and every opportunity • Sort completed items to the bottom to focus on what's left • All five DLB source documents bundled and viewable in-app • Works fully offline — no account, no cloud sync • Reminders are local notifications — no server involved • No ads, no in-app purchases, no analytics, no telemetry • iPhone and iPad support with light and dark mode WHO IT'S FOR Engineering undergraduates at Cal Poly Pomona participating in the DLB Seminar Series, plus engineering students elsewhere whose career-prep needs overlap. The content applies broadly to any STEM job seeker working through resume drafting, interview preparation, post-interview follow-up, or evaluating offers. PRIVACY DLB Career Toolkit stores all checklist progress, opportunities, and journal entries locally on your device. Nothing leaves your device unless you choose to share a PDF. No account required.

Screenshots

phyphox4 screens
DLB Career Toolkit4 screens

Verdict

The call

The clearest difference is update cadence: DLB Career Toolkit at fortnightly against phyphox's every 3 months. DLB Career Toolkit also leads on rating (5.0 vs 4.6). phyphox's advantage is ratings volume (282 vs 2) and iOS requirement (12.0 vs 18.0). 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

DLB Career Toolkit holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: phyphox has 282 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

phyphox ships an update every 3 months, DLB Career Toolkit fortnightly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
phyphox versus DLB Career Toolkit: the parameters behind the verdict, then further details
ParameterphyphoxDLB Career Toolkit
PriceFreeFree
Rating4.6 (282 ratings)5.0 (2 ratings) — better
Positive reviews78.7% of reviews—
Number of ratings282 — better2
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better18.0
Further details — not scored
Size19 MB3 MB
Age rating4+4+
DeveloperRWTH Aachen UniversityTIMOTHY JAMES KIPPEN

Customer experience

phyphox

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

DLB Career Toolkit

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

DLB Career Toolkit

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

phyphox

No in-app purchases

None

DLB Career Toolkit

No in-app purchases

Questions

Is phyphox free?
phyphox is free to download, with no in-app purchases.
Is DLB Career Toolkit free?
DLB Career Toolkit is free to download, with no in-app purchases.
Which has better reviews, phyphox or DLB Career Toolkit?
DLB Career Toolkit is rated higher. phyphox averages 4.6 out of 5 from 282 ratings, while DLB Career Toolkit averages 5.0 from 2 ratings.
Do phyphox or DLB Career Toolkit have ads?
Neither phyphox nor DLB Career Toolkit shows ads.
Which is updated more often, phyphox or DLB Career Toolkit?
phyphox ships an update every 3 months, and DLB Career Toolkit fortnightly. Most recently, phyphox was updated on November 2, 2026 and DLB Career Toolkit on October 31, 2026.

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