# Lapis 公式アプリ vs Oshilog

The clearest difference is in-app purchases: Lapis 公式アプリ at none against Oshilog's 2. Lapis 公式アプリ also leads on ads (none vs shown) and iOS requirement (12.0 vs 17.0). Oshilog's advantage is update cadence (every 4 days vs every 35 months). On price and device support there is nothing between them.

Both are free to download. Oshilog sells 2 in-app purchases, starting at $1.99 per month. Lapis 公式アプリ asks for nothing beyond the download.

Lapis 公式アプリ ships an update every 35 months, Oshilog every 4 days. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Lapis 公式アプリ | Oshilog |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 35 months | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 15 MB | 11 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [JUN TANAKA](https://appshunter.io/developer/1490075932) | [KUREHO](https://appshunter.io/developer/1884942706) |

## What reviewers say

### Lapis 公式アプリ

[App page](https://appshunter.io/ios/app/lapis/id1490075933)

**In-app purchases:** none


### Oshilog

[App page](https://appshunter.io/ios/app/oshilog-fan-activity-tracker/id6775257663)

Track your fan activities, from daily events to merchandise purchases, with a unified timeline and calendar. Visualize spending, log memories, and generate listing templates for unwanted items. Offers unlimited entries and advanced features with a Pro subscription.

**Highlights:** Unified event timeline, Monthly calendar view, Merchandise logging, Spending visualization, Graduation Notebook, Mercari listing templates, Home screen widgets

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus (Monthly) | $1.99 | per month |
| Plus (Lifetime) | $14.99 | one-time |


## Frequently asked questions

### Is Lapis 公式アプリ free?

Lapis 公式アプリ is free to download, with no in-app purchases.

### Is Oshilog free?

Oshilog is free to download, with in-app purchases available.

### Do Lapis 公式アプリ or Oshilog have ads?

Oshilog shows ads; Lapis 公式アプリ does not.

### Which is updated more often, Lapis 公式アプリ or Oshilog?

Lapis 公式アプリ ships an update every 35 months, and Oshilog every 4 days. Most recently, Lapis 公式アプリ was updated on October 10, 2026 and Oshilog on October 25, 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.*