# DataONE FSM vs FSM Grid

The clearest difference is iOS requirement: FSM Grid at 11.0 against DataONE FSM's 15.1. On price, update cadence, 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.

DataONE FSM ships an update every 2 months, FSM Grid every 6 weeks. The most recent releases landed on October 25, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | DataONE FSM | FSM Grid |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Size | 46 MB | 172 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DataOne Systems, LLC](https://appshunter.io/developer/1619087029) | [FSM Global Technologies FZ-LLC](https://appshunter.io/developer/1622610764) |

## What reviewers say

### DataONE FSM

[App page](https://appshunter.io/ios/app/dataone-fsm/id1619087027)

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

**In-app purchases:** none


### FSM Grid

[App page](https://appshunter.io/ios/app/fsm-grid/id1622610762)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DataONE FSM free?

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

### Is FSM Grid free?

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

### Do DataONE FSM or FSM Grid have ads?

Neither DataONE FSM nor FSM Grid shows ads.

### Which is updated more often, DataONE FSM or FSM Grid?

DataONE FSM ships an update every 2 months, and FSM Grid every 6 weeks. Most recently, DataONE FSM was updated on October 25, 2026 and FSM Grid on October 8, 2026.

---

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