# Gravity One vs Coimin

The clearest difference is in-app purchases: Gravity One at none against Coimin's 1. Gravity One also leads on ads (none vs shown). Coimin's advantage is update cadence (every 3 weeks vs every 9 months) and iOS requirement (15.6 vs 18.0). On price and device support there is nothing between them.

Both are free to download. Coimin sells 1 in-app purchase, starting at $0.99 per month. Gravity One asks for nothing beyond the download.

Gravity One ships an update every 9 months, Coimin every 3 weeks. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Gravity One | Coimin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Size | 15 MB | 35 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sami Salkosuo](https://appshunter.io/developer/820432278) | [Matically Inc.](https://appshunter.io/developer/1786584470) |

## What reviewers say

### Gravity One

[App page](https://appshunter.io/ios/app/gravity-one/id820432275)

**Features:** macOS Compatibility

**In-app purchases:** none


### Coimin

[App page](https://appshunter.io/ios/app/coimin/id6739703285)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coimin premium options | $0.99 | per month |


## Frequently asked questions

### Is Gravity One free?

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

### Is Coimin free?

Coimin is free to download, with in-app purchases available.

### Do Gravity One or Coimin have ads?

Coimin shows ads; Gravity One does not.

### Which is updated more often, Gravity One or Coimin?

Gravity One ships an update every 9 months, and Coimin every 3 weeks. Most recently, Gravity One was updated on October 26, 2026 and Coimin on October 25, 2026.

---

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