# DayInBook vs FIRE資産計算

The clearest difference is in-app purchases: FIRE資産計算 at none against DayInBook's 4. FIRE資産計算 also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). DayInBook's advantage is ads (none vs shown). On price and update cadence there is nothing between them.

Both are free to download. DayInBook sells 4 in-app purchases, starting at $1.99 per month. FIRE資産計算 asks for nothing beyond the download.

DayInBook ships an update every 3 days, FIRE資産計算 every 5 days. The most recent releases landed on October 4, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | DayInBook | FIRE資産計算 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 5 days |
| Size | 15 MB | 31 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [阳 曹](https://appshunter.io/developer/1599300891) | [Hiroto Ouchi](https://appshunter.io/developer/1871793341) |

## What reviewers say

### DayInBook

[App page](https://appshunter.io/ios/app/dayinbook-fire/id6756570968)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO月订阅 | $1.99 | per month |
| PRO年订阅 | $9.99 | per year |
| AI积分100 | $1.99 | one-time |
| AI积分1000 | $17.99 | one-time |


### FIRE資産計算

[App page](https://appshunter.io/ios/app/fire/id6758258484)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DayInBook free?

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

### Is FIRE資産計算 free?

FIRE資産計算 is free to download, with no in-app purchases.

### Do DayInBook or FIRE資産計算 have ads?

FIRE資産計算 shows ads; DayInBook does not.

### Which is updated more often, DayInBook or FIRE資産計算?

DayInBook ships an update every 3 days, and FIRE資産計算 every 5 days. Most recently, DayInBook was updated on October 4, 2026 and FIRE資産計算 on September 30, 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.*