# Billing Case vs 3s Kakeibo

The clearest difference is in-app purchases: Billing Case at none against 3s Kakeibo's 1. Billing Case also leads on ads (none vs shown) and iOS requirement (15.1 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. 3s Kakeibo sells 1 one-off in-app purchase. Billing Case asks for nothing beyond the download.

Billing Case ships an update every 4 days, 3s Kakeibo every 3 days. The most recent releases landed on October 10, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Billing Case | 3s Kakeibo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 days | **Every 3 days** |
| Size | 25 MB | 7 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yuliia Aliekseienko](https://appshunter.io/developer/1896230779) | [丽佳 施](https://appshunter.io/developer/1894580777) |

## What reviewers say

### Billing Case

[App page](https://appshunter.io/ios/app/billing-case/id6766191524)

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

**In-app purchases:** none


### 3s Kakeibo

[App page](https://appshunter.io/ios/app/3s-kakeibo-quick-expense/id6794604259)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Billing Case free?

Billing Case is free to download, with no in-app purchases.

### Is 3s Kakeibo free?

3s Kakeibo is free to download, with in-app purchases available.

### Do Billing Case or 3s Kakeibo have ads?

3s Kakeibo shows ads; Billing Case does not.

### Which is updated more often, Billing Case or 3s Kakeibo?

Billing Case ships an update every 4 days, and 3s Kakeibo every 3 days. Most recently, Billing Case was updated on October 10, 2026 and 3s Kakeibo on October 4, 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.*