# Surprise Stories vs Stack｜自己投資アプリ

The clearest difference is update cadence: Stack｜自己投資アプリ at every 10 days against Surprise Stories's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Surprise Stories ships an update every 2 months, Stack｜自己投資アプリ every 10 days. The most recent releases landed on October 4, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Surprise Stories | Stack｜自己投資アプリ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Free | — |
| Size | 28 MB | 41 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Surprise.inc](https://appshunter.io/developer/1554081690) | [Nagato Kadoya](https://appshunter.io/developer/1575311338) |

## What reviewers say

### Surprise Stories

[App page](https://appshunter.io/ios/app/surprise-stories/id1554081688)

Access exclusive business and mindset content from Makonari President through daily audio and text articles. Explore summaries of business books and watch member-only seminar videos and live streams.

**Highlights:** Daily audio and text articles, Business book summaries and analysis, Exclusive seminar videos, Member-only live streams, Background playback

**Features:** macOS Compatibility

**In-app purchases:** none


### Stack｜自己投資アプリ

[App page](https://appshunter.io/ios/app/stack/id6745755185)

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

**In-app purchases:** none


## Frequently asked questions

### Is Surprise Stories free?

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

### Is Stack｜自己投資アプリ free?

Stack｜自己投資アプリ is free to download, with no in-app purchases.

### Do Surprise Stories or Stack｜自己投資アプリ have ads?

Neither Surprise Stories nor Stack｜自己投資アプリ shows ads.

### Which is updated more often, Surprise Stories or Stack｜自己投資アプリ?

Surprise Stories ships an update every 2 months, and Stack｜自己投資アプリ every 10 days. Most recently, Surprise Stories was updated on October 4, 2026 and Stack｜自己投資アプリ on September 28, 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.*