Memory Ark vs Notifyman
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
Notifyman
This app helps you stay organized with persistent reminders that stay on your lock screen until completed. It automatically categorizes tasks and offers features like checklists and calendar sync to manage your life effectively.
- Persistent lock screen reminders
- Smart task categorization
- Checklists for task completion
- Calendar sync
- Statistics and insights
- Notification widgets
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The Most Powerful Reminder App Yet Stay laser-focused with persistent reminders that never disappear from your Lock Screen—until you mark them as done. Every time you unlock your phone, your active tasks are right in front of you. No more forgetting. No more excuses. In Reminder List, every task must have a time. No more overlooked tasks because you forgot to set a reminder. If you don’t specify a time, the default is now—and the notification will appear immediately and stay until completed. “Own your Reminder List, own a productive and disciplined life.” Key Features: • Smart Categorization: Automatically sorts your reminders into To-dos, Repeating Tasks, and Scheduled Events—no manual organization needed. • Task Lists: Plan work, manage errands, organize shopping lists—stay in control of your life. • Checklists: Tasks can’t be marked as complete until every item in the checklist is done. • Persistent Alerts: Set reminders using either relative time or exact dates—default is now, so you never miss a beat. • Unlimited Reminders: Notifications can repeat at intervals until acknowledged—never miss what matters. • Ongoing Reminders: Notifications keep prompting you until the task is marked as done. • Repeating Tasks: Create reminders that repeat every X minutes, hours, or days. • Scheduled Tasks: Set daily, weekly, or monthly recurring tasks—even with multiple trigger times. • Notification Widgets: View, snooze, or complete tasks directly from the notification center—no need to open the app. • Statistics & Insights: Track your task completion rates and habit streaks. • Calendar Sync: Automatically syncs your reminders to your system calendar. Three Types of Reminders • Instant Tasks: Great for quick plans—“Remind me to pick up the package at 6 PM tonight”, “Remind me to go to the store tomorrow at 5 PM.” • Repeating Tasks: Perfect for routines like hydration, taking medicine, or posture breaks. • Scheduled Tasks: Build long-term habits—“Exercise for 30 minutes every day”, “Study vocabulary daily”, “Clock in and out for work.” 【Subscription】 1. Subscription Service Continuous annual (12-month) subscription for Notifyman members 2. Subscription Price Continuous annual subscription for Notifyman members is 9.99$ per year 3. Payment The user confirms the purchase and payment will be charged to their iTunes account 4. Automatic Renewal: The Apple iTunes account will be charged 24 hours before the expiration date, and after successful payment, the subscription will be extended for another period 5. Cancel Service: You can go to "Settings" -> "iTunes Store and App Store" -> "Apple ID" -> "View Apple ID" on your iPhone, enter the account settings page, click on "Subscriptions", and manage automatic subscription services. To cancel, turn off the service 24 hours before each billing cycle. No more charges will be made within 24 hours before expiration. 6. Service Agreement Terms of Use: https://github.com/WhiteCosmos/Tougher-App-Support/blob/main/TermsOfService Privacy Policy: https://github.com/WhiteCosmos/Tougher-App-Support/blob/main/Privacy%20Policy
Screenshots
Verdict
The clearest difference is monetization model: Memory Ark at free with in-app purchases against Notifyman's subscription. Memory Ark also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). Notifyman's advantage is update cadence (every 3 days vs every 2 months) and ratings volume (11 vs 1). On price, rating, ads and in-app purchases 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 Notifyman sells 3 in-app purchases, starting at $2.99 per year. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Memory Ark against 4.9 for Notifyman. That said, the two scores are not equally well evidenced: Notifyman has 11 ratings behind it against 1, so its average is the more settled of the two.
Memory Ark ships an update every 2 months, Notifyman every 3 days. The most recent releases landed on September 19, 2026 and October 8, 2026 respectively.
| Parameter | Memory Ark | Notifyman |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.9 (11 ratings) |
| Positive reviews | — | 87.0% of reviews |
| Number of ratings | 1 | 11 — better |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Subscription |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 6 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | 世超 徐 | 斌斌 沈 |
Customer experience
Memory Ark
Notifyman
In-app purchases
Memory Ark
- Monthly Membership$0.991 Month
- Annual Membership$2.991 Year
Notifyman
- Annully Subscription7 Days trial$2.991 Year
- Lifetime$3.99
- Lifetime$19.99









