# Orbit Milestones vs Physics Labs

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.

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.

## The numbers

| Metric | Orbit Milestones | Physics Labs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/orbit-milestones/id914113239/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 38 months | **Every 2 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 3 MB | 32 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chris Mash](https://appshunter.io/developer/570568194) | [Huseyin Aykut Uludag](https://appshunter.io/developer/1469165629) |

## What reviewers say

### Orbit Milestones

[App page](https://appshunter.io/ios/app/orbit-milestones/id914113239)

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.

**Highlights:** Fractional age calculation, Life event progress visualization, Orbital animation of Earth, Anniversary tracking, Job milestone tracking

**In-app purchases:** none


### Physics Labs

[App page](https://appshunter.io/ios/app/physics-labs/id6472849584)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Orbit Milestones free?

Orbit Milestones is free to download, with no in-app purchases.

### Is Physics Labs free?

Physics Labs is free to download, with no in-app purchases.

### Do Orbit Milestones or Physics Labs have ads?

Physics Labs shows ads; Orbit Milestones does not.

### Which is updated more often, Orbit Milestones or Physics Labs?

Orbit Milestones ships an update every 38 months, and Physics Labs every 2 weeks. Most recently, Orbit Milestones was updated on September 15, 2026 and Physics Labs on June 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*