# otto（オット） vs grassroots

otto（オット） and grassroots 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.

otto（オット） ships an update every 23 months, grassroots every 17 months. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | otto（オット） | grassroots |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 17 months** |
| Size | 3 MB | 3 MB |
| Requires iOS | 8.0 | 8.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Naoya Takahashi](https://appshunter.io/developer/1301211980) | [Fujiko Meguro](https://appshunter.io/developer/1549502477) |

## What reviewers say

### otto（オット）

[App page](https://appshunter.io/ios/app/otto/id1333452661)

**In-app purchases:** none


### grassroots

[App page](https://appshunter.io/ios/app/grassroots/id1549502475)

**In-app purchases:** none


## Frequently asked questions

### Is otto（オット） free?

otto（オット） is free to download, with no in-app purchases.

### Is grassroots free?

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

### Do otto（オット） or grassroots have ads?

Neither otto（オット） nor grassroots shows ads.

### Which is updated more often, otto（オット） or grassroots?

otto（オット） ships an update every 23 months, and grassroots every 17 months. Most recently, otto（オット） was updated on November 11, 2026 and grassroots on November 3, 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.*