# amiさいとう vs MAINSAIL

amiさいとう and MAINSAIL 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.

amiさいとう ships an update every 38 months, MAINSAIL every 39 months. The most recent releases landed on October 26, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | amiさいとう | MAINSAIL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 38 months** | Every 39 months |
| Size | 17 MB | 16 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NAOMI SAITO](https://appshunter.io/developer/1450937825) | [MAIN SAIL, K.K.](https://appshunter.io/developer/1501125367) |

## What reviewers say

### amiさいとう

[App page](https://appshunter.io/ios/app/ami/id1450937826)

**In-app purchases:** none


### MAINSAIL

[App page](https://appshunter.io/ios/app/mainsail/id1501125368)

**In-app purchases:** none


## Frequently asked questions

### Is amiさいとう free?

amiさいとう is free to download, with no in-app purchases.

### Is MAINSAIL free?

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

### Do amiさいとう or MAINSAIL have ads?

Neither amiさいとう nor MAINSAIL shows ads.

### Which is updated more often, amiさいとう or MAINSAIL?

amiさいとう ships an update every 38 months, and MAINSAIL every 39 months. Most recently, amiさいとう was updated on October 26, 2026 and MAINSAIL on November 7, 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.*