# Greenchecklist vs OceanFMS 2.1

The clearest difference is update cadence: OceanFMS 2.1 at fortnightly against Greenchecklist's every 2 months. Greenchecklist's advantage is iOS requirement (12.0 vs 15.1). 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.

Greenchecklist ships an update every 2 months, OceanFMS 2.1 fortnightly. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Greenchecklist | OceanFMS 2.1 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 53 MB | 56 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [i2i softwares private limited](https://appshunter.io/developer/1155899316) | [Probus Software](https://appshunter.io/developer/1781825469) |

## What reviewers say

### Greenchecklist

[App page](https://appshunter.io/ios/app/greenchecklist/id1659185502)

**Features:** macOS Compatibility

**In-app purchases:** none


### OceanFMS 2.1

[App page](https://appshunter.io/ios/app/oceanfms-21/id6753783551)

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

**In-app purchases:** none


## Frequently asked questions

### Is Greenchecklist free?

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

### Is OceanFMS 2.1 free?

OceanFMS 2.1 is free to download, with no in-app purchases.

### Do Greenchecklist or OceanFMS 2.1 have ads?

Neither Greenchecklist nor OceanFMS 2.1 shows ads.

### Which is updated more often, Greenchecklist or OceanFMS 2.1?

Greenchecklist ships an update every 2 months, and OceanFMS 2.1 fortnightly. Most recently, Greenchecklist was updated on October 27, 2026 and OceanFMS 2.1 on October 24, 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.*