# Biological Code vs BK Environmental Exploration

The clearest difference is in-app purchases: BK Environmental Exploration at none against Biological Code's 6. Biological Code's advantage is update cadence (every 2 weeks vs every 2 months) and iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Biological Code sells 6 in-app purchases, starting at $29.99 per month. BK Environmental Exploration asks for nothing beyond the download.

Biological Code ships an update every 2 weeks, BK Environmental Exploration every 2 months. The most recent releases landed on September 29, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Biological Code | BK Environmental Exploration |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/bk-environmental-exploration/id1562404875/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | — | Free |
| Size | 132 MB | 238 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Mathaus Martin](https://appshunter.io/developer/1453544780) | [Solved Education Consultancy, LLC](https://appshunter.io/developer/1506645558) |

## What reviewers say

### Biological Code

[App page](https://appshunter.io/ios/app/biological-code/id1453544781)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vollversion | $29.99 | per month |
| Organdatenbank, monatlich | $29.99 | per month |
| Biologischer Code | $0.99 | one-time |
| 15 Coach Guthaben | $5.99 | one-time |
| 45 Coach Guthaben | $11.99 | one-time |
| 120 Coach Guthaben | $49.99 | one-time |


### BK Environmental Exploration

[App page](https://appshunter.io/ios/app/bk-environmental-exploration/id1562404875)

This app provides a centralized digital hub for students, families, and staff to access academic information, school news, and community updates. It offers features like schedules, grades, event calendars, and communication tools, with translation and accessibility options.

**Highlights:** Academic schedules and grades, School news and social media feed, Event calendar with detailed information, Staff directory and communication, PBIS integration for staff, Multilingual support and accessibility features

**In-app purchases:** none


## Frequently asked questions

### Is Biological Code free?

Biological Code is free to download, with in-app purchases available.

### Is BK Environmental Exploration free?

BK Environmental Exploration is free to download, with no in-app purchases.

### Do Biological Code or BK Environmental Exploration have ads?

Neither Biological Code nor BK Environmental Exploration shows ads.

### Which is updated more often, Biological Code or BK Environmental Exploration?

Biological Code ships an update every 2 weeks, and BK Environmental Exploration every 2 months. Most recently, Biological Code was updated on September 29, 2026 and BK Environmental Exploration on October 4, 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.*