# Bacteria Sandwich

> System dynamics model of bacterial growth and food safety. (iPhone/iPad app by BTN PTE. LTD..)

- Source: https://appshunter.io/ios/app/bacteria-sandwich/id1166083358 (this page in markdown: same URL + `.md`)
- Developer: [BTN PTE. LTD.](https://appshunter.io/developer/1088199105)
- Category: Education
- Price: Free
- Rating: 3.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 8.0 · 24 MB
- Languages: English
- Released: 2016-11-24
- Data updated: 2026-07-07
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/bacteria-sandwich/id1166083358/reviews.md

## What is Bacteria Sandwich?

Bacteria Sandwich presents a simple system dynamics model on bacterial growth. Experiment with the model to see how the number of bacteria in food can rise exponentially, and how cooling food helps keep it safe.

Bacteria Sandwich is part of a series of introductory system dynamics apps, built by The Creative Learning Exchange, the Center for Interdisciplinary Excellence in System Dynamics, and BTN. Get the entire series today.

## Key features

- System dynamics model
- Bacterial growth simulation
- Food safety exploration
- Exponential growth visualization
- Cooling effect demonstration


## Frequently asked questions about Bacteria Sandwich

### What is Bacteria Sandwich?

Bacteria Sandwich is an educational app that presents a system dynamics model to simulate bacterial growth in food. It helps users understand how bacteria multiply and the impact of cooling on food safety.

### How does Bacteria Sandwich teach about bacterial growth?

The app uses a system dynamics model to visualize the exponential rise in bacteria numbers. Users can experiment with variables to observe how different factors, like temperature, affect growth rates.

### Is Bacteria Sandwich suitable for children?

Yes, Bacteria Sandwich has an age rating of 4+, making it suitable for younger learners. It provides a simplified yet informative look at scientific concepts.

### What devices support Bacteria Sandwich?

Bacteria Sandwich is available for iPhone, iPad, and iPod touch devices, offering broad accessibility for Apple users.

### How often is Bacteria Sandwich updated?

The app was last updated on April 24, 2019, to version 2.0. While not frequently updated, it provides a stable simulation experience.

### Does Bacteria Sandwich have ads?

No, Bacteria Sandwich does not contain advertisements. It offers an uninterrupted learning experience for users.

### What is the learning methodology of Bacteria Sandwich?

Bacteria Sandwich employs a simulation-based learning approach. Users actively engage with a model to understand complex processes, fostering experiential learning.

### Can I track my progress in Bacteria Sandwich?

Bacteria Sandwich focuses on direct interaction with the simulation model rather than formal progress tracking. Users learn by experimenting and observing the outcomes of their interactions.

## Version history (last 4 releases)

### 2.0 — 2019-04-24

Support for F and C temperature units

### 1.2 — 2018-05-25

Minor fixes and updates.

### 1.1 — 2016-11-29

Improvements and bug fixes

### 1.0 — 2016-11-24

No release notes.

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## More apps by BTN PTE. LTD.

- [Population Collapse](https://appshunter.io/ios/app/population-collapse/id1115271480)
- [Population Planner](https://appshunter.io/ios/app/population-planner/id1160576836)
- [Retire Rich](https://appshunter.io/ios/app/retire-rich/id1163201940)

All apps by BTN PTE. LTD.: https://appshunter.io/developer/1088199105

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-07.*