Memory Ark vs Dinox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Memory Ark
This app helps users combat forgetting by using the Ebbinghaus Forgetting Curve to create personalized review schedules. It offers features like task management, progress tracking, and smart rescheduling to make learning more efficient and effective.
- Ebbinghaus Forgetting Curve integration
- Daily and calendar task management
- Task categorization with tags
- Detailed review session data
- Customizable memory curves
- Smart task rescheduling
- Retroactive check-in for missed tasks
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The biggest challenge in memory is combating forgetting. Forgetting is a natural human tendency, and this principle was discovered long ago by Ebbinghaus, known as the famous Ebbinghaus Forgetting Curve. Our software incorporates the Ebbinghaus Curve to create detailed reminder plans. Users only need to complete their daily tasks on time to achieve long-term memory, making learning more efficient. Learning itself is complex, and designing a simple and user-friendly app is our core principle. Features of this software: 1. Today's Tasks: Review the intelligently scheduled daily tasks on time. 2. Calendar Tasks: View the number of daily tasks at a glance for better planning. 3. All Tasks: All tasks are grouped by status, keeping progress fully under control. 4. Node Preview: Track detailed data on each review session for strategic planning. 5. Custom Curve: Customize your memory curve based on personal habits—what suits you best. 6. Task Tags: Categorize tasks systematically, with home page tasks displayed in tag order. 7. Smart Postponement: Delayed task nodes are automatically rescheduled, preventing memory confusion. 8. Retroactive Check-in: A powerful make-up feature—no matter how many days you missed, you can still check in. Auto-Renewable Subscription Service Description Subscription Services: Monthly Membership (Auto-Renewable Monthly) Annual Membership (Auto-Renewable Yearly) Subscription Prices: Monthly Membership: $0.99/month (approx. 3 CNY) Annual Membership: $2.99/year (approx. 18 CNY) Payment: Payment will be charged to your iTunes account upon confirmation of purchase. Auto-Renewal: Your iTunes account will be charged within 24 hours before the end of the current subscription period. Upon successful payment, the subscription period will be extended for another term. Cancellation: You can turn off auto-renewal at any time by going to your iTunes/Apple ID settings at least 24 hours before the end of the current subscription period. No further charges will be applied after cancellation. Contact Us: If you encounter any issues, please contact us at: zhiledaoyuan@sina.com Terms of Use: https://www.yuque.com/zldy/ni1wwu/etyg8a76ok26n9c1 Privacy Policy: https://www.yuque.com/zldy/ni1wwu/upx1vcs1g1ng60pr
Dinox
This app offers AI-powered real-time voice transcription with over 98% accuracy, alongside a personal AI assistant for your notes. It prioritizes data security with a local-first approach and includes features like clipping, AI reading companion, and automatic bi-directional linking for efficient knowledge management.
- Real-time AI voice transcription (98%+ accuracy)
- Personal AI assistant for notes
- Local-first data storage for security
- Clipping and AI reading companion
- Automatic bi-directional linking
- Knowledge base support
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Dinox 是一款AI 语音实时转录笔记,支持的特性有： 1. 实时转录语音，识别率 98%+，支持边转录边记录 2.内置私人专属笔记 AI 助理，询问任何关于自己笔记的内容 3.Local-First 本地优先，不用担心笔记数据的安全问题 4. 使用条款（EULA）：https://dinox.info/guides/service/terms/ 4.支持剪藏功能，AI 伴读 5.自动双链，无需手动维护，解放大脑 6. 支持知识库 7. 支持自定义智能体 8. 使用条款（EULA）：https://www.apple.com/legal/internet-services/itunes/dev/stdeula 9. 隐私政策：https://www.termsfeed.com/live/e6db53d5-a3fa-43d0-814d-943ec2420767
Screenshots
Verdict
The clearest difference is rating: Memory Ark at 5.0 against Dinox's 3.7. Dinox's advantage is update cadence (every 3 days vs every 2 months) and ratings volume (6 vs 1). On price, ads, in-app purchases and monetization model 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. Memory Ark sells 2 in-app purchases, starting at $0.99 per month and Dinox sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Memory Ark holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Dinox has 6 ratings behind it against 1, so its average is the more settled of the two.
Memory Ark ships an update every 2 months, Dinox every 3 days. The most recent releases landed on September 19, 2026 and September 20, 2026 respectively.
| Parameter | Memory Ark | Dinox |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 3.7 (6 ratings) |
| Positive reviews | — | 25.0% of reviews |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 6 MB | 232 MB |
| Age rating | 4+ | 17+ |
| Developer | 世超 徐 | 美勇 周 |
Customer experience
Memory Ark
Dinox
In-app purchases
Memory Ark
- Monthly Membership$0.991 Month
- Annual Membership$2.991 Year
Dinox
- 黄金月度会员$4.991 Month
- 年度会员$19.991 Year
- Dinox 永久会员$69.99
