# Mechanical Engineering Mag vs BioPhotonics

The clearest difference is iOS requirement: Mechanical Engineering Mag at 10.2 against BioPhotonics's 12.0. On price, update cadence, ads 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.

Both ship on a similar rhythm, roughly every 7 months. The most recent releases landed on September 21, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | Mechanical Engineering Mag | BioPhotonics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (6 ratings)](https://appshunter.io/ios/app/mechanical-engineering-mag/id521147202/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | Every 7 months |
| Monetization | Free | — |
| Size | 22 MB | 25 MB |
| Requires iOS | **10.2** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ASME](https://appshunter.io/developer/521147205) | [Laurin Publishing Co., Inc.](https://appshunter.io/developer/657383362) |

## What reviewers say

### Mechanical Engineering Mag

[App page](https://appshunter.io/ios/app/mechanical-engineering-mag/id521147202)

Access award-winning monthly engineering content in a digital format. Read current and past issues, with text-formatted articles optimized for mobile. Download content for offline access and search the archive.

**Highlights:** Current and past issues, Brilliant replica format, Text-formatted articles, Offline reading, Searchable archive, Bookmark articles

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### BioPhotonics

[App page](https://appshunter.io/ios/app/biophotonics/id657384558)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mechanical Engineering Mag free?

Mechanical Engineering Mag is free to download, with no in-app purchases.

### Is BioPhotonics free?

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

### Do Mechanical Engineering Mag or BioPhotonics have ads?

Neither Mechanical Engineering Mag nor BioPhotonics shows ads.

### Which is updated more often, Mechanical Engineering Mag or BioPhotonics?

Mechanical Engineering Mag ships an update every 7 months, and BioPhotonics every 7 months. Most recently, Mechanical Engineering Mag was updated on September 21, 2026 and BioPhotonics on May 16, 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.*