# postcardCafe Atelier vs WhoseUp

The clearest difference is price: WhoseUp at Free against postcardCafe Atelier's $2.49. WhoseUp also leads on update cadence (fortnightly vs every 2 months). postcardCafe Atelier's advantage is in-app purchases (none vs 1) and iOS requirement (15.0 vs 17.6). On ads and device support there is nothing between them.

WhoseUp is free to download; postcardCafe Atelier costs $2.49 up front. WhoseUp sells 1 one-off in-app purchase. postcardCafe Atelier asks for nothing beyond the download.

postcardCafe Atelier ships an update every 2 months, WhoseUp fortnightly. The most recent releases landed on September 26, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | postcardCafe Atelier | WhoseUp |
| --- | --- | --- |
| Price | $2.49 | **Free** |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/whoseup/id6759379778/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 73 MB | 12 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kunio Takeuchi](https://appshunter.io/developer/851499887) | [Jimmy Park](https://appshunter.io/developer/1878353188) |

## What reviewers say

### postcardCafe Atelier

[App page](https://appshunter.io/ios/app/postcardcafe-atelier/id1490956031)

**In-app purchases:** none


### WhoseUp

[App page](https://appshunter.io/ios/app/whoseup/id6759379778)

Effortlessly track who's next to pay for group expenses like coffee, lunches, or dinners. Create custom circles for different groups, log payments, and let the app automatically manage fair turn rotations. View payment history and confirm transactions for accountability.

**Highlights:** Fair turn tracking, Unlimited group circles, Payment statistics and history, Payment confirmation, Customizable group banners, Data export to CSV, Dark mode support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Who's Paying Pro | $2.99 | one-time |


## Frequently asked questions

### Is postcardCafe Atelier free?

postcardCafe Atelier costs $2.49, with no in-app purchases.

### Is WhoseUp free?

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

### Do postcardCafe Atelier or WhoseUp have ads?

Neither postcardCafe Atelier nor WhoseUp shows ads.

### Which is updated more often, postcardCafe Atelier or WhoseUp?

postcardCafe Atelier ships an update every 2 months, and WhoseUp fortnightly. Most recently, postcardCafe Atelier was updated on September 26, 2026 and WhoseUp on August 16, 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.*