# Smart割り勘 vs tatetsu

The clearest difference is price: tatetsu at Free against Smart割り勘's $0.99. Smart割り勘's advantage is update cadence (every 4 months vs every 26 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

tatetsu is free to download; Smart割り勘 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Smart割り勘 ships an update every 4 months, tatetsu every 26 months. The most recent releases landed on September 21, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Smart割り勘 | tatetsu |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 26 months |
| Monetization | Paid | — |
| Size | 1 MB | 25 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Yasuyuki Someya](https://appshunter.io/developer/1205478560) | [Tetsuya Nishikawa](https://appshunter.io/developer/1454906652) |

## What reviewers say

### Smart割り勘

[App page](https://appshunter.io/ios/app/smart/id1205478561)

This app simplifies splitting bills for various social gatherings, from casual get-togethers to formal events. It allows for flexible calculations, including preferential treatment for certain individuals and detailed tracking of shared expenses for potluck-style events. Results can be easily shared with participants.

**Highlights:** Automatic bill splitting by amount and number of people, Customizable splits for preferential treatment, Detailed expense tracking for shared supplies, Round-off calculations in specific denominations, Share results via LINE or email

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

**In-app purchases:** none


### tatetsu

[App page](https://appshunter.io/ios/app/tatetsu/id1611326705)

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart割り勘 free?

Smart割り勘 costs $0.99, with no in-app purchases.

### Is tatetsu free?

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

### Do Smart割り勘 or tatetsu have ads?

Neither Smart割り勘 nor tatetsu shows ads.

### Which is updated more often, Smart割り勘 or tatetsu?

Smart割り勘 ships an update every 4 months, and tatetsu every 26 months. Most recently, Smart割り勘 was updated on September 21, 2026 and tatetsu on September 8, 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.*