# Bukumemo vs SEIBI

The clearest difference is update cadence: SEIBI at every 2 days against Bukumemo's every 6 months. Bukumemo's advantage is iOS requirement (10.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Bukumemo sells 1 one-off in-app purchase and SEIBI sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Bukumemo ships an update every 6 months, SEIBI every 2 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Bukumemo | SEIBI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 days** |
| Monetization | — | Freemium |
| Size | 23 MB | 37 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Taku Inoue](https://appshunter.io/developer/412489390) | [Daisuke Hanano](https://appshunter.io/developer/945362806) |

## What reviewers say

### Bukumemo

[App page](https://appshunter.io/ios/app/bukumemo-book-memo/id466265917)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Advertisement | $1.99 | one-time |


### SEIBI

[App page](https://appshunter.io/ios/app/seibi/id6737248176)

Manage your car's maintenance history and inspection schedules in one place. This app helps you keep track of regular check-ups and part replacements to maintain optimal vehicle performance.

**Highlights:** Record maintenance history, Edit maintenance items, Aggregate maintenance costs, Visualize costs with bar graphs, iCloud backup (subscription)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月額会員 | $0.99 | per month |


## Frequently asked questions

### Is Bukumemo free?

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

### Is SEIBI free?

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

### Do Bukumemo or SEIBI have ads?

Neither Bukumemo nor SEIBI shows ads.

### Which is updated more often, Bukumemo or SEIBI?

Bukumemo ships an update every 6 months, and SEIBI every 2 days. Most recently, Bukumemo was updated on October 26, 2026 and SEIBI 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.*