爱思星球 vs LeftRightDiary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
爱思星球
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【硬件产品绑定】 蓝牙绑定点读笔，点读笔远程控制，状态同步 【海量书籍推荐】 根据点读笔点读数据，多维度分析，针对性推荐，培养孩子阅读兴趣
LeftRightDiary
This app allows you to record life's moments using text and images, with support for Markdown editing. It prioritizes privacy by storing all data locally on your device and offers various ways to review past entries.
- Markdown and Rich Text editing
- Mixed text and image layout
- Heatmap and Calendar views
- Random memory recall
- Local data storage
- WebDAV and Alibaba Cloud Disk sync
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**Capture Every Moment** With Zuoyou Diary, record every moment of your life! 【Product Introduction】 Zuoyou Diary is a simple and pure diary app! It supports writing journals in Markdown, combining text and images. All basic features are completely free. All diary data is stored only on your device — your privacy is our top priority, so you never have to worry about data leaks. In addition, you can easily review past entries through various views such as Heatmap, Calendar, Random Recall, and "On This Day in the Past." Everything is clearly laid out so you can effortlessly keep track of life's little moments. 【Key Features】 * Supports both Markdown and Rich Text editors * Mixed text and image layout * Heatmap support * Calendar view (with heatmap) * Calendar image view * On this day in the past * Random memory recall * Privacy-focused: data stored locally on your device * Sync via WebDAV * Sync with Alibaba Cloud Disk
Screenshots
Verdict
The clearest difference is review sentiment: 爱思星球 at 100% against LeftRightDiary's 50%. 爱思星球 also leads on in-app purchases (none vs 3) and iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. LeftRightDiary sells 3 one-off in-app purchases. 爱思星球 asks for nothing beyond the download.
爱思星球 ships an update every 2 months, LeftRightDiary every 3 weeks. The most recent releases landed on October 13, 2026 and October 28, 2026 respectively.
| Parameter | 爱思星球 | LeftRightDiary |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 23 MB | 81 MB |
| Age rating | 4+ | 4+ |
| Developer | 深圳市好学多科技有限公司 | 候军 袁 |
Customer experience
爱思星球
LeftRightDiary
In-app purchases
爱思星球
No in-app purchases
LeftRightDiary
- Upgrade to PRO$3.99
- 请作者吃大餐$9.99
- 大力支持$29.99
