# Relation　Nail vs MAINSAIL

Relation　Nail 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.

Both ship on a similar rhythm, roughly every 39 months. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Relation　Nail | MAINSAIL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | Every 39 months |
| Size | 15 MB | 16 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KIYOMI MATSUFUSA](https://appshunter.io/developer/1445924948) | [MAIN SAIL, K.K.](https://appshunter.io/developer/1501125367) |

## What reviewers say

### Relation　Nail

[App page](https://appshunter.io/ios/app/relation-nail/id1445924949)

**In-app purchases:** none


### MAINSAIL

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

**In-app purchases:** none


## Frequently asked questions

### Is Relation　Nail free?

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

### Is MAINSAIL free?

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

### Do Relation　Nail or MAINSAIL have ads?

Neither Relation　Nail nor MAINSAIL shows ads.

### Which is updated more often, Relation　Nail or MAINSAIL?

Relation　Nail ships an update every 39 months, and MAINSAIL every 39 months. Most recently, Relation　Nail was updated on November 11, 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.*