# Last Message Will vs GapSync（ギャップシンク）/ 相性よりズレを知ろう

The clearest difference is ads: Last Message Will at none against GapSync（ギャップシンク）/ 相性よりズレを知ろう's shown. Last Message Will also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.6). GapSync（ギャップシンク）/ 相性よりズレを知ろう's advantage is update cadence (every 2 weeks vs every 5 weeks). On price and in-app purchases there is nothing between them.

Both are free to download. Last Message Will sells 1 in-app purchase, starting at $0.49 per month and GapSync（ギャップシンク）/ 相性よりズレを知ろう sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Last Message Will ships an update every 5 weeks, GapSync（ギャップシンク）/ 相性よりズレを知ろう every 2 weeks. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Last Message Will | GapSync（ギャップシンク）/ 相性よりズレを知ろう |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 27 MB | 7 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kenjiro Kanemaki](https://appshunter.io/developer/1511504115) | [ダウネットワーク株式会社](https://appshunter.io/developer/1845498423) |

## What reviewers say

### Last Message Will

[App page](https://appshunter.io/ios/app/last-message-will/id6740612665)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited plan | $0.49 | per month |


### GapSync（ギャップシンク）/ 相性よりズレを知ろう

[App page](https://appshunter.io/ios/app/gapsync/id6775158660)

This app helps you visualize the differences in values and lifestyles between you and another person. It's designed to foster understanding by highlighting discrepancies, rather than judging compatibility. Create shared questionnaires and receive reports with insights for discussion.

**Highlights:** Create relationship-specific diagnostic rooms, Respond via web browser (no app install needed for partner), Answer questions about values and lifestyle, View gap reports visualizing differences, Receive hints for constructive discussion, Save and review past reports

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告削除 | $1.99 | one-time |


## Frequently asked questions

### Is Last Message Will free?

Last Message Will is free to download, with in-app purchases available.

### Is GapSync（ギャップシンク）/ 相性よりズレを知ろう free?

GapSync（ギャップシンク）/ 相性よりズレを知ろう is free to download, with in-app purchases available.

### Do Last Message Will or GapSync（ギャップシンク）/ 相性よりズレを知ろう have ads?

GapSync（ギャップシンク）/ 相性よりズレを知ろう shows ads; Last Message Will does not.

### Which is updated more often, Last Message Will or GapSync（ギャップシンク）/ 相性よりズレを知ろう?

Last Message Will ships an update every 5 weeks, and GapSync（ギャップシンク）/ 相性よりズレを知ろう every 2 weeks. Most recently, Last Message Will was updated on October 6, 2026 and GapSync（ギャップシンク）/ 相性よりズレを知ろう on October 13, 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.*