Comparison

Calflow vs A Plan To Do(Ebbinghaus Curve)

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Calflow

This app integrates with your existing iOS Reminders and Calendars to help you track how you spend your time. It offers features for daily planning, time tracking, and goal setting, providing insights into your productivity within the Apple ecosystem.

Highlights
  • 2-way sync with iOS Reminders & Calendar
  • Time tracking for reminders and events
  • Time distribution insights
  • Powerful tag system for filtering
  • Goal and habit tracking
  • Apple Health and app usage sync
Features
Read full description

If you’re using Apple Reminders and iOS Calendar/ Google Calendar in your workflow, and you wonder how you spend your time, tasks, daily activities, etc, it’s for you. Calflow is a powerful time-tracking planner based on iOS Reminders & Calendar, helping you keep track of your day and stay productive within the Apple ecosystem. Daily & Weekly Planner ◆ 2-way sync with iOS Reminders & Calendar (Free) ◆ Use Spaces to separate personal and work tasks, helping you declutter your schedule and stay focused Streamline Time-tracking into your Apple Workflow ◆ Track how much time you spend on your Reminders & events: - Reminders: Auto-populate time entries in Apple Calendar - Events: Auto-update your planned event details in Apple Calendar Apple Calendar Time Insights ◆ Also supports Google Calendar ◆ Track your time distribution across day/week/month/year Powerful Tag System ◆ Create smart tags to filter your calendar event entries, and learn about their activity across day/week/month/year ◆ Create groups to analyze time from multiple perspectives Goals, Habits Tracking ◆ Track goals, habits based on your iOS Reminders & Calendars to help ensure your time align with your goals Track anything and sync them to iOS Calendar ◆ Apple Health sync (mindful minutes, sleep time, workout time) ◆ App usage time tracking (via Shortcuts) ◆ Daily activities (via tracker widgets) Need help or have ideas to share? We’re always here: contact@calflow.app Terms of Use(EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://calflow.app/privacypolicy/

About

A Plan To Do(Ebbinghaus Curve)

Organize tasks with multi-level Kanban boards and checklists. Improve learning efficiency using Ebbinghaus study plans and develop daily habits with quick clock-in features. A unified calendar view simplifies tracking all your tasks.

Highlights
  • Kanban and checklist task management
  • Ebbinghaus study plan creation
  • Daily habit development
  • Calendar view for schedules
  • Template library for scenarios
  • Multi-level task organization
Read full description

Keep your to-do tasks organized in multi-level management; Improve your learning efficiency with Ebbinghaus plans. ¶ Features ⇀ Kanban & checklist Multi-level management of to-do tasks with checklists, cards and Kanbans; Overview of global progress makes control easy; Out-of-the-box template library serves different scenarios. ⇀ Plan tasks Ebbinghaus plans save your plan creation and management effort; Custom plans give more controls on schedule a sequential of tasks; All for helping you focus on the execution rather than the tool. ⇀ Habits Easily develop good daily habits; Quick clock-in operation for success and failure; Each habit has concise log statistics. ⇀ Schedule Calendar view makes what to do each day noticeable; Unified entrance simplifies check out on different types of tasks. ¶ In-app purchases and auto-renewable subscriptions ⇀ Life Membership With one-time charge of US$19.99 or equivalent currency in your sale region, you can enjoy all the features for a life time. ⇀ Auto-renewing plans Subscription Annual Membership unlocks all the features for a year with a continuous charge of US$12.99 or equivalent currency in your sale region yearly. Subscription Monthly Membership unlocks all the features for a month with a continuous charge of US$2.99 or equivalent currency in your sale region monthly. You are automatically charged near the end of subscription until you manually cancel the subscription in your Subscription Management 24 hours before the auto-renewal. ¶ Services and terms ⇀ Privacy Terms https://www.xcdz123.com/a-plan-privacy-en.html ⇀ Service Terms https://www.xcdz123.com/a-plan-terms-en.html ⇀ Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ¶ Contact us ⇀ E-mail: support@xcdz123.com ⇀ Official website: www.xcdz123.com

Screenshots

Calflow4 screens
A Plan To Do(Ebbinghaus Curve)4 screens

Verdict

The call

The clearest difference is ratings volume: Calflow at 131 against A Plan To Do(Ebbinghaus Curve)'s 1. Calflow also leads on device support (4 vs 2). On price, rating, update cadence and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Calflow sells 3 in-app purchases, starting at $3.99 per month and A Plan To Do(Ebbinghaus Curve) sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Calflow against 5.0 for A Plan To Do(Ebbinghaus Curve). That said, the two scores are not equally well evidenced: Calflow has 131 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Calflow ships an update every 10 days, A Plan To Do(Ebbinghaus Curve) weekly. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

Scorecard2 real differences · 8 level
Calflow versus A Plan To Do(Ebbinghaus Curve): the parameters behind the verdict, then further details
ParameterCalflowA Plan To Do(Ebbinghaus Curve)
PriceFreeFree
Rating4.9 (131 ratings)5.0 (1 ratings) — better
Positive reviews88.9% of reviews—
Number of ratings131 — better1
Update frequencyEvery 10 daysWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size183 MB34 MB
Age rating4+12+
DeveloperKyovan Ltd.Xiaochang Dazuo (Beijing) Technology Co., Ltd.

Customer experience

Calflow

All ratings129 ratings
Positive98.4%
Neutral0.8%
Negative0.8%
Written reviews108 reviews
Positive88.9%
Neutral4.6%
Negative6.5%

A Plan To Do(Ebbinghaus Curve)

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Calflow

Reported bugs

11 issues
  • Timer doesn't sync across devices (iPhone to iPad/Mac)
  • Live Activity not showing on iPad when timer active
  • Apple Watch timers not accessible on other devices
  • Widget display showing only black and white screen
  • Insights double-counting time on existing calendar events
Show 6 more
  • Goals feature sometimes fails to record correctly
  • iPad reminders list not syncing with iPhone
  • Timer in notification center and widget not syncing
  • iPad doesn't show timer notifications in notification center
  • Apple Watch connectivity issues after paid subscription activation
  • Mac and iPad timer not showing when started on iPhone

Requested features

27 requests
  • Dark mode support
  • Mac menu bar timer widget
  • Multiple simultaneous timers on iPhone
  • Larger font size options
  • Ability to copy and paste calendar events
Show 22 more
  • Custom goal cadences (not just daily/weekly/monthly)
  • Daily focus note area (like weekly focus)
  • Hashtag support in notes for better app integration
  • Apple Watch complications
  • Faster widget refresh rates
  • Drag and drop support for weekly plans
  • Collaboration/sharing features
  • Data export to CSV/Excel format
  • URL field for events and tasks
  • Callback URL support
  • Notification/reminder alerts for events
  • Milestone and skill tree features
  • Import data from other time tracking apps
  • Japanese language support
  • Custom day start time for analytics
  • Notebook/note-taking integration
  • Customizable todo background colors
  • Reminders list and tags binding
  • Mac automation scheduling
  • Website usage tracking on Mac
  • Ambient sounds and tick sounds for focus mode
  • Collaborative task management

A Plan To Do(Ebbinghaus Curve)

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Calflow

Subscriptions2
  • Monthly plan$3.991 Month
  • Annual plan7 Days trial$12.991 Year
One-time1
  • One-time purchase$37.99
3 purchases

A Plan To Do(Ebbinghaus Curve)

Subscriptions2
  • Monthly Membership$2.991 Month
  • Annual Membership$12.991 Year
One-time1
  • Life Membership$19.99

Questions

Is Calflow free?
Calflow is free to download, with in-app purchases available.
Is A Plan To Do(Ebbinghaus Curve) free?
A Plan To Do(Ebbinghaus Curve) is free to download, with in-app purchases available.
Which has better reviews, Calflow or A Plan To Do(Ebbinghaus Curve)?
A Plan To Do(Ebbinghaus Curve) is rated higher. Calflow averages 4.9 out of 5 from 131 ratings, while A Plan To Do(Ebbinghaus Curve) averages 5.0 from 1 ratings.
Do Calflow or A Plan To Do(Ebbinghaus Curve) have ads?
Neither Calflow nor A Plan To Do(Ebbinghaus Curve) shows ads.
Which is updated more often, Calflow or A Plan To Do(Ebbinghaus Curve)?
Calflow ships an update every 10 days, and A Plan To Do(Ebbinghaus Curve) weekly. Most recently, Calflow was updated on October 30, 2026 and A Plan To Do(Ebbinghaus Curve) on October 27, 2026.

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