Orbit Milestones vs Physics Labs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Orbit Milestones
This app calculates and displays your age in fractions, like "four and three quarters." It also visualizes progress towards life events, such as anniversaries, with an orbiting Earth animation.
- Fractional age calculation
- Life event progress visualization
- Orbital animation of Earth
- Anniversary tracking
- Job milestone tracking
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You know how kids sometimes tell people their age to the highest possible fraction? "I'm not four, I'm four and three quarters!" Well this app will let you know that fraction without having to do any maths in your head! Or you might just like to see the earth orbiting around the sun showing the progress to the next anniversary of your life, relationship, job, you name it!
Physics Labs
This app uses your device's sensors to measure various physical quantities like acceleration, magnetic fields, and sound levels. View data in coordinates or scalar magnitude, and export it to Excel for analysis. It's a digital lab for your phone.
- Measure acceleration, magnetic fields, and sound levels
- View data in X, Y, Z coordinates or scalar magnitude
- Export sensor data to Excel for analysis
- Eliminate gravity from acceleration measurements
- Measure atmospheric pressure
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Physics Lab is all-in-one Sensor app which let you know physical entities around you like acceleration, magnetic fields, light intensity, sound decibel and much more... Physics Lab measures physical parameters by using your device sensors which typical device contain bunch of those sensors! Application give output in high precision with short intervals based on your sensor's capabilities. In Physics Lab, you can observe physical data in coordinates (X-axis, Y-axis, Z-axis) or in scalar magnitude. If you want, you can export sensor data into Excel by one click! Using export to excel feature you can obtain statistical information about your measurement. Physical quantities that can be measured Physics Lab: * Accelerometer: Measuring acceleration around your device. Output in m/s2 for x, y and z axes. Also, you can eliminate gravity from your measurements by one click and see real acceleration. * Magnetometer: Measuring magnetic field around your device. Output in µT for x, y and z axes. * Gyroscope: Measure angular inclination in x, y and z axes. Output in degree (°) * Luxmeter: COMING SOON * Barometer: Measure atmospheric pressure. Output in bar. * Noisemeter: Measure loudness around you. Output in dB. If you like our application, you can give us 5 stars. You can forward any suggestions, requests or concerns to info@grandmount.org
Screenshots
Verdict
The clearest difference is ads: Orbit Milestones at none against Physics Labs's shown. Orbit Milestones also leads on monetization model (free vs ad-supported). Physics Labs's advantage is update cadence (every 2 weeks vs every 38 months) and device support (3 vs 1). On price and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Orbit Milestones ships an update every 38 months, Physics Labs every 2 weeks. The most recent releases landed on September 15, 2026 and June 9, 2026 respectively.
| Parameter | Orbit Milestones | Physics Labs |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 38 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 3 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Chris Mash | Huseyin Aykut Uludag |
Customer experience
Orbit Milestones
Physics Labs
In-app purchases
Orbit Milestones
No in-app purchases
Physics Labs
No in-app purchases
Questions
Is Orbit Milestones free?
Is Physics Labs free?
Do Orbit Milestones or Physics Labs have ads?
Which is updated more often, Orbit Milestones or Physics Labs?
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