# Gravitational Force vs DuctPro

The clearest difference is update cadence: DuctPro at weekly against Gravitational Force's every 6 months. Gravitational Force's advantage is iOS requirement (13.0 vs 17.0). 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.

Gravitational Force ships an update every 6 months, DuctPro weekly. The most recent releases landed on October 27, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Gravitational Force | DuctPro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Size | 43 MB | 3 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Stage Coding](https://appshunter.io/developer/1637068135) | [High Intent Labs](https://appshunter.io/developer/6771761657) |

## What reviewers say

### Gravitational Force

[App page](https://appshunter.io/ios/app/gravitational-force-calcon/id1619685815)

**Features:** macOS Compatibility

**In-app purchases:** none


### DuctPro

[App page](https://appshunter.io/ios/app/ductpro/id6771761655)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Gravitational Force free?

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

### Is DuctPro free?

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

### Do Gravitational Force or DuctPro have ads?

Neither Gravitational Force nor DuctPro shows ads.

### Which is updated more often, Gravitational Force or DuctPro?

Gravitational Force ships an update every 6 months, and DuctPro weekly. Most recently, Gravitational Force was updated on October 27, 2026 and DuctPro on September 19, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*