# 3 vs Declarando Bitcoin

The clearest difference is update cadence: 3 at monthly against Declarando Bitcoin's every 20 months. 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.

3 ships an update monthly, Declarando Bitcoin every 20 months. The most recent releases landed on September 18, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 3 | Declarando Bitcoin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/3-body/id6642661687/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 20 months |
| Monetization | Free | — |
| Size | 9 MB | 41 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cubic Insights LLC](https://appshunter.io/developer/1763432190) | [The Members](https://appshunter.io/developer/1653824858) |

## What reviewers say

### 3

[App page](https://appshunter.io/ios/app/3-body/id6642661687)

Explore the wonders of gravity with this 2D N-body simulator. Experiment with celestial mechanics, create mesmerizing patterns, and customize your simulations. It's a fun and educational playground for anyone curious about physics.

**Highlights:** Simulate gravity interactions, Explore preset configurations, Customize body size, color, and trails, Educational and fun physics experiments, Create mesmerizing visual patterns

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

**In-app purchases:** none


### Declarando Bitcoin

[App page](https://appshunter.io/ios/app/declarando-bitcoin/id6737680687)

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

**In-app purchases:** none


## Frequently asked questions

### Is 3 free?

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

### Is Declarando Bitcoin free?

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

### Do 3 or Declarando Bitcoin have ads?

Neither 3 nor Declarando Bitcoin shows ads.

### Which is updated more often, 3 or Declarando Bitcoin?

3 ships an update monthly, and Declarando Bitcoin every 20 months. Most recently, 3 was updated on September 18, 2026 and Declarando Bitcoin on October 13, 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.*