# groupay vs tatetsu

The clearest difference is in-app purchases: tatetsu at none against groupay's 4. tatetsu also leads on ads (none vs shown). groupay's advantage is update cadence (every 2 weeks vs every 26 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. groupay sells 4 one-off in-app purchases. tatetsu asks for nothing beyond the download.

groupay ships an update every 2 weeks, tatetsu every 26 months. The most recent releases landed on September 18, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | groupay | tatetsu |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 61.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 26 months |
| Monetization | Free with in-app purchases | — |
| Size | 7 MB | 25 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Akihiro Usui](https://appshunter.io/developer/1387267485) | [Tetsuya Nishikawa](https://appshunter.io/developer/1454906652) |

## What reviewers say

### groupay

[App page](https://appshunter.io/ios/app/groupay-adjust-split-bill/id1387267486)

Easily track and settle shared expenses for group activities like travel and events. Input who paid what, and the app calculates exactly who owes whom. Features allow for adjustments and selective cost splitting among participants.

**Highlights:** Split bill calculation, Expense tracking, Payment adjustments, Selective cost splitting, Group settlement

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hide Ads | $0.49 | one-time |
| Snack-Sized Tip | $0.49 | one-time |
| Coffee-Sized Tip | $1.99 | one-time |
| Lunch-Sized Tip | $3.99 | one-time |


### tatetsu

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

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

**In-app purchases:** none


## Frequently asked questions

### Is groupay free?

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

### Is tatetsu free?

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

### Do groupay or tatetsu have ads?

groupay shows ads; tatetsu does not.

### Which is updated more often, groupay or tatetsu?

groupay ships an update every 2 weeks, and tatetsu every 26 months. Most recently, groupay was updated on September 18, 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.*