# Gravitational Force vs Discover Douglas

The clearest difference is update cadence: Discover Douglas at every 2 months against Gravitational Force's every 6 months. Gravitational Force's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.6). On price, ads and in-app purchases 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, Discover Douglas every 2 months. The most recent releases landed on September 15, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Gravitational Force | Discover Douglas |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Size | 43 MB | 142 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [STAGE CODING, Travnik](https://appshunter.io/developer/1637068135) | [City of Douglas (Wyoming)](https://appshunter.io/developer/1784817555) |

## What reviewers say

### Gravitational Force

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Discover Douglas

[App page](https://appshunter.io/ios/app/discover-douglas/id6739315607)

**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 Discover Douglas free?

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

### Do Gravitational Force or Discover Douglas have ads?

Neither Gravitational Force nor Discover Douglas shows ads.

### Which is updated more often, Gravitational Force or Discover Douglas?

Gravitational Force ships an update every 6 months, and Discover Douglas every 2 months. Most recently, Gravitational Force was updated on September 15, 2026 and Discover Douglas on September 12, 2026.

---

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