# Mailmind vs 古往今猜

The clearest difference is in-app purchases: Mailmind at none against 古往今猜's 3. Mailmind also leads on update cadence (every 2 days vs every 2 weeks) and iOS requirement (13.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. 古往今猜 sells 3 in-app purchases, starting at $0.99 per 7 days. Mailmind asks for nothing beyond the download.

Mailmind ships an update every 2 days, 古往今猜 every 2 weeks. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Mailmind | 古往今猜 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mailmind/id1549119125/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Monetization | Free | — |
| Size | 490 MB | 28 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Chengdu DUYE Culture Communication Co., Ltd](https://appshunter.io/developer/1549119397) | [杭杰 叶](https://appshunter.io/developer/1799458800) |

## What reviewers say

### Mailmind

[App page](https://appshunter.io/ios/app/mailmind/id1549119125)

A decentralized social media platform for sharing thoughts, culture, and art. It focuses on spiritual needs and intellectual discussion, offering a space for creative expression and the exploration of abstract concepts.

**Highlights:** Decentralized social media platform, Focus on spiritual needs and intellectual discussion, Artistic and academic content sharing, Video content for expressing thoughts, Community discussions on abstract concepts, Global community with shared values

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

**In-app purchases:** none


### 古往今猜

[App page](https://appshunter.io/ios/app/ai/id6757539986)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $0.99 | per 7 days |
| 月会员 | $0.99 | per month |
| 年会员 | $4.99 | per year |


## Frequently asked questions

### Is Mailmind free?

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

### Is 古往今猜 free?

古往今猜 is free to download, with in-app purchases available.

### Do Mailmind or 古往今猜 have ads?

Neither Mailmind nor 古往今猜 shows ads.

### Which is updated more often, Mailmind or 古往今猜?

Mailmind ships an update every 2 days, and 古往今猜 every 2 weeks. Most recently, Mailmind was updated on October 8, 2026 and 古往今猜 on October 10, 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.*