# Sloth vs Echo回声练习

The clearest difference is in-app purchases: Echo回声练习 at none against Sloth's 11. Sloth's advantage is update cadence (every 9 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Sloth sells 11 in-app purchases, starting at $0.99 per month. Echo回声练习 asks for nothing beyond the download.

Sloth ships an update every 9 days, Echo回声练习 every 3 weeks. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Sloth | Echo回声练习 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/sloth-free-space-and-diary/id6443441021/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 104 MB | 118 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Wuhan Weizhi Hudong Technology Co., Ltd.](https://appshunter.io/developer/1581782791) | [锐华 甘](https://appshunter.io/developer/6787809326) |

## What reviewers say

### Sloth

[App page](https://appshunter.io/ios/app/sloth-free-space-and-diary/id6443441021)

This app provides a private and stress-free space for daily journaling, allowing users to record thoughts, feelings, and memories through text, images, video, or voice. It offers extensive customization options for a personalized experience and ensures data security with an independent app lock.

**Highlights:** Stress-free private journaling, Record text, images, video, voice, Customizable space decoration, Time letters to future self, Independent app lock for security, Unlimited free storage, AI assistant integration

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP连续包月 | $0.99 | per month |
| 获取AI点数-基础档 | $0.99 | one-time |
| 12元购买84钻石 | $1.99 | one-time |
| AI互动特权 - 28元/月 | $3.99 | one-time |
| 获取AI点数-提升档 | $3.99 | one-time |
| 获取AI点数-pro档 | $7.99 | one-time |
| AI互动特权 - 68元/季度 | $9.99 | one-time |
| 98元购买686钻石 | $14.99 | one-time |
| 获取AI点数-Max档 | $14.99 | one-time |
| 198元购买1386钻石 | $29.99 | one-time |
| AI互动特权 - 198元/年 | $29.99 | one-time |


### Echo回声练习

[App page](https://appshunter.io/ios/app/echo/id6787870760)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sloth free?

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

### Is Echo回声练习 free?

Echo回声练习 is free to download, with no in-app purchases.

### Do Sloth or Echo回声练习 have ads?

Neither Sloth nor Echo回声练习 shows ads.

### Which is updated more often, Sloth or Echo回声练习?

Sloth ships an update every 9 days, and Echo回声练习 every 3 weeks. Most recently, Sloth was updated on October 24, 2026 and Echo回声练习 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.*