# K1くんBIG vs Relationship Journal｜Memorio

The clearest difference is in-app purchases: K1くんBIG at none against Relationship Journal｜Memorio's 4. K1くんBIG also leads on iOS requirement (10.0 vs 15.6). Relationship Journal｜Memorio's advantage is update cadence (every 4 days vs every 15 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Relationship Journal｜Memorio sells 4 in-app purchases, starting at $3.99 per month. K1くんBIG asks for nothing beyond the download.

K1くんBIG ships an update every 15 months, Relationship Journal｜Memorio every 4 days. The most recent releases landed on October 13, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | K1くんBIG | Relationship Journal｜Memorio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (18 ratings)](https://appshunter.io/ios/app/relationship-journalmemorio/id1508929510/reviews)** |
| Number of ratings | — | **18** |
| Positive reviews | — | 87.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 97 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [株式会社アプリラボ](https://appshunter.io/developer/567688645) | [Tomohiro Suzuki](https://appshunter.io/developer/1195730335) |

## What reviewers say

### K1くんBIG

[App page](https://appshunter.io/ios/app/k1big/id571889448)

**Features:** macOS Compatibility

**In-app purchases:** none


### Relationship Journal｜Memorio

[App page](https://appshunter.io/ios/app/relationship-journalmemorio/id1508929510)

Organize your life by people and passions with a visual journal and calendar. Create AI avatars, track milestones, and log hobbies, from family events to sports stats and collectibles. Keep all your important memories in one beautiful, organized space.

**Highlights:** AI Avatar Creator, Visual Calendar, Smart Tagging, Relationship & Hobby Logging, Fan Life Tracking, Auto-Save & Sync

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $3.99 | per month |
| Small Business | $28.99 | per month |
| Premium | $34.99 | per year |
| Lifetime Premium | $119.99 | one-time |


## Frequently asked questions

### Is K1くんBIG free?

K1くんBIG is free to download, with no in-app purchases.

### Is Relationship Journal｜Memorio free?

Relationship Journal｜Memorio is free to download, with in-app purchases available.

### Do K1くんBIG or Relationship Journal｜Memorio have ads?

Neither K1くんBIG nor Relationship Journal｜Memorio shows ads.

### Which is updated more often, K1くんBIG or Relationship Journal｜Memorio?

K1くんBIG ships an update every 15 months, and Relationship Journal｜Memorio every 4 days. Most recently, K1くんBIG was updated on October 13, 2026 and Relationship Journal｜Memorio on October 27, 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.*