# StampCalender vs 開運カレンダー/かわいいアイコンで吉凶日がわかる！

The clearest difference is in-app purchases: StampCalender at none against 開運カレンダー/かわいいアイコンで吉凶日がわかる！'s 6. 開運カレンダー/かわいいアイコンで吉凶日がわかる！'s advantage is ads (none vs shown) and update cadence (every 2 months vs every 5 months). On price, review sentiment, monetization model and device support there is nothing between them.

Both are free to download. 開運カレンダー/かわいいアイコンで吉凶日がわかる！ sells 6 in-app purchases, starting at $3.99 per month. StampCalender asks for nothing beyond the download.

StampCalender ships an update every 5 months, 開運カレンダー/かわいいアイコンで吉凶日がわかる！ every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | StampCalender | 開運カレンダー/かわいいアイコンで吉凶日がわかる！ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (5 ratings)](https://appshunter.io/ios/app/stampcalender/id459369355/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | **53.2% of reviews** | 52.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 51 MB | 55 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ZAIZEN Co., Ltd.](https://appshunter.io/developer/380406945) | [GUUPON, INC.](https://appshunter.io/developer/1624667443) |

## What reviewers say

### StampCalender

[App page](https://appshunter.io/ios/app/stampcalender/id459369355)

Organize your schedule with decorative stamps. Drag and drop stamps onto your calendar to mark appointments and events. Easily view your plans at a glance and prioritize important tasks.

**Highlights:** Drag-and-drop stamp scheduling, Visual calendar overview, Icon sorting for prioritization, Appointment planning, Schedule at a glance

**Features:** Vision Pro support

**In-app purchases:** none


### 開運カレンダー/かわいいアイコンで吉凶日がわかる！

[App page](https://appshunter.io/ios/app/id1624667441)

This app combines a traditional calendar with auspicious and inauspicious day information, featuring cute icons for easy understanding. It also offers daily fortunes and access to web-based spiritual and astrological content. Plan your events with a focus on lucky days.

**Highlights:** Auspicious and inauspicious day calendar, Cute icons for lucky/unlucky days, Daily fortune messages, Access to web-based spiritual content, Standard calendar with event scheduling, Lunar phase information

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン(月額) | $3.99 | per month |
| プレミアムプラン(年額) | $34.99 | per year |
| りんごちゃん 仕事セット | $1.99 | one-time |
| 茶トラ 日常セット | $1.99 | one-time |
| うさちゃん 日常セット | $1.99 | one-time |
| うさちゃん 美容セット | $1.99 | one-time |


## Frequently asked questions

### Is StampCalender free?

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

### Is 開運カレンダー/かわいいアイコンで吉凶日がわかる！ free?

開運カレンダー/かわいいアイコンで吉凶日がわかる！ is free to download, with in-app purchases available.

### Do StampCalender or 開運カレンダー/かわいいアイコンで吉凶日がわかる！ have ads?

StampCalender shows ads; 開運カレンダー/かわいいアイコンで吉凶日がわかる！ does not.

### Which is updated more often, StampCalender or 開運カレンダー/かわいいアイコンで吉凶日がわかる！?

StampCalender ships an update every 5 months, and 開運カレンダー/かわいいアイコンで吉凶日がわかる！ every 2 months. Most recently, StampCalender was updated on October 23, 2026 and 開運カレンダー/かわいいアイコンで吉凶日がわかる！ on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*