# DataONE FSM vs Kiimo

DataONE FSM and Kiimo are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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, Kiimo every 6 weeks. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | DataONE FSM | Kiimo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Size | 46 MB | 55 MB |
| Requires iOS | 15.1 | **15** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DataOne Systems, LLC](https://appshunter.io/developer/1619087029) | [KIIMO TECHNOLOGIES D.O.O.E.L.](https://appshunter.io/developer/1804707053) |

## 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


### Kiimo

[App page](https://appshunter.io/ios/app/kiimo/id6755731128)

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

**In-app purchases:** none


## Frequently asked questions

### Is DataONE FSM free?

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

### Is Kiimo free?

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

### Do DataONE FSM or Kiimo have ads?

Neither DataONE FSM nor Kiimo shows ads.

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

DataONE FSM ships an update every 2 months, and Kiimo every 6 weeks. Most recently, DataONE FSM was updated on October 6, 2026 and Kiimo on October 10, 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.*