# Nail.Couleur vs FamSync 家族カレンダー・おたよりAI整理

The clearest difference is in-app purchases: Nail.Couleur at none against FamSync 家族カレンダー・おたよりAI整理's 1. Nail.Couleur also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). FamSync 家族カレンダー・おたよりAI整理's advantage is update cadence (every 4 days vs every 66 months). On price and device support there is nothing between them.

Both are free to download. FamSync 家族カレンダー・おたよりAI整理 sells 1 in-app purchase, starting at $2.99 per month. Nail.Couleur asks for nothing beyond the download.

Nail.Couleur ships an update every 66 months, FamSync 家族カレンダー・おたよりAI整理 every 4 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Nail.Couleur | FamSync 家族カレンダー・おたよりAI整理 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 66 months | **Every 4 days** |
| Size | 25 MB | 98 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ERICA KUROKI](https://appshunter.io/developer/1551920698) | [tsugutoshi toda](https://appshunter.io/developer/1861101538) |

## What reviewers say

### Nail.Couleur

[App page](https://appshunter.io/ios/app/nailcouleur/id1551920696)

**In-app purchases:** none


### FamSync 家族カレンダー・おたよりAI整理

[App page](https://appshunter.io/ios/app/famsync-ai/id6756513127)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FamSync ファミリープラン（月額） | $2.99 | per month |


## Frequently asked questions

### Is Nail.Couleur free?

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

### Is FamSync 家族カレンダー・おたよりAI整理 free?

FamSync 家族カレンダー・おたよりAI整理 is free to download, with in-app purchases available.

### Do Nail.Couleur or FamSync 家族カレンダー・おたよりAI整理 have ads?

FamSync 家族カレンダー・おたよりAI整理 shows ads; Nail.Couleur does not.

### Which is updated more often, Nail.Couleur or FamSync 家族カレンダー・おたよりAI整理?

Nail.Couleur ships an update every 66 months, and FamSync 家族カレンダー・おたよりAI整理 every 4 days. Most recently, Nail.Couleur was updated on November 7, 2026 and FamSync 家族カレンダー・おたよりAI整理 on October 31, 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.*