# Molecule Simulator vs Flag Maker!

The clearest difference is review sentiment: Molecule Simulator at 100% against Flag Maker!'s 66%. Molecule Simulator also leads on update cadence (every 4 months vs every 48 months) and rating (4.3 vs 4.0). Flag Maker!'s advantage is ratings volume (132 vs 24). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Molecule Simulator holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: Flag Maker! has 132 ratings behind it against 24, so its average is the more settled of the two. Written reviews point the same way: 100% of Molecule Simulator's written reviews are positive against 66% of Flag Maker!'s.

Molecule Simulator ships an update every 4 months, Flag Maker! every 48 months. The most recent releases landed on September 21, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Molecule Simulator | Flag Maker! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (24 ratings)](https://appshunter.io/ios/app/molecule-simulator/id1538249996/reviews)** | [4.0 (132 ratings)](https://appshunter.io/ios/app/flag-maker/id1638457636/reviews) |
| Number of ratings | 24 | **132** |
| Positive reviews | **100.0% of reviews** | 65.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 48 months |
| Monetization | Free | Free |
| Size | 8 MB | 150 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [仕清 刘](https://appshunter.io/developer/1531464103) | [Matthew Williamson](https://appshunter.io/developer/1215994306) |

## What reviewers say

### Molecule Simulator

[App page](https://appshunter.io/ios/app/molecule-simulator/id1538249996)

Visualize the 3D structures of molecules using data from PubChem and Protein Data Bank. Explore molecules in various viewing modes and download an extensive library of compounds.

**Highlights:** 3D molecular visualization, Space filling mode, Ball-and-stick mode, Data from PubChem, Data from Protein Data Bank, Downloadable molecule library

**Features:** macOS Compatibility

**In-app purchases:** none


### Flag Maker!

[App page](https://appshunter.io/ios/app/flag-maker/id1638457636)

Create custom flags quickly with a vast library of base designs and emblems. Combine elements, customize colors, and manipulate emblems for endless design possibilities. Save and share your unique flag creations.

**Highlights:** Design flags in minutes, Dozens of base designs, Hundreds of emblems, Combine base designs and emblems, Customizable colors for each element, Move, resize, flip, and rotate emblems, Save and share designs

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Intuitive and easy-to-use interface
- 🎨 Creative flag design capabilities
- ⭐ Great for alternate history and micronations
- 🎯 Simple and straightforward functionality
- 💾 Ability to save flags to device

**What reviewers complain about**

- 📺 Excessive and intrusive ads
- 🔒 Limited symbol availability
- 🎨 Limited color selection and shape options
- 🔧 Small control buttons for moving/scaling
- 💰 Paywall restrictions on symbols

**Reported bugs**

- App crashes on startup
- iPad crashes requiring hard reset
- Ad-watching feature not functioning properly
- Symbols stuck in center position
- Ads appear even in airplane mode

**Requested features**

- Nordic cross design
- Maple leaf symbol
- Text/typography support
- Custom image import capability
- Non-rectangular flag shapes


## Frequently asked questions

### Is Molecule Simulator free?

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

### Is Flag Maker! free?

Flag Maker! is free to download, with no in-app purchases.

### Which has better reviews, Molecule Simulator or Flag Maker!?

Molecule Simulator is rated higher. Molecule Simulator averages 4.3 out of 5 from 24 ratings, while Flag Maker! averages 4.0 from 132 ratings.

### Do Molecule Simulator or Flag Maker! have ads?

Neither Molecule Simulator nor Flag Maker! shows ads.

### Which is updated more often, Molecule Simulator or Flag Maker!?

Molecule Simulator ships an update every 4 months, and Flag Maker! every 48 months. Most recently, Molecule Simulator was updated on September 21, 2026 and Flag Maker! on September 12, 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.*