# atom.sim vs B2P Bridge Visualization Tool

The clearest difference is update cadence: atom.sim at every 7 months against B2P Bridge Visualization Tool's every 19 months. B2P Bridge Visualization Tool's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

atom.sim ships an update every 7 months, B2P Bridge Visualization Tool every 19 months. The most recent releases landed on October 11, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | atom.sim | B2P Bridge Visualization Tool |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 19 months |
| Size | 78 MB | 169 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hans Kovi](https://appshunter.io/developer/1493527465) | [Ove Arup & Partners International Ltd](https://appshunter.io/developer/501648778) |

## What reviewers say

### atom.sim

[App page](https://appshunter.io/ios/app/atomsim/id1493527466)

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

**In-app purchases:** none


### B2P Bridge Visualization Tool

[App page](https://appshunter.io/ios/app/b2p-bridge-visualization-tool/id1610522455)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is atom.sim free?

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

### Is B2P Bridge Visualization Tool free?

B2P Bridge Visualization Tool is free to download, with no in-app purchases.

### Do atom.sim or B2P Bridge Visualization Tool have ads?

Neither atom.sim nor B2P Bridge Visualization Tool shows ads.

### Which is updated more often, atom.sim or B2P Bridge Visualization Tool?

atom.sim ships an update every 7 months, and B2P Bridge Visualization Tool every 19 months. Most recently, atom.sim was updated on October 11, 2026 and B2P Bridge Visualization Tool on October 3, 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.*