Comparison

4.Do vs When Did I…? Routine Memory

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

Head to head
About

4.Do

This app helps you organize and prioritize tasks using the Eisenhower Matrix. Break down projects, set reminders, and collaborate with others to boost your productivity and achieve your goals.

Highlights
  • Eisenhower Matrix 4-Quadrant organization
  • Focused Mode for specific quadrants
  • Subtasks and checklists
  • Task attachments (photos)
  • Smart reminders and recurring tasks
  • Seamless multi-device sync
  • Collaboration features
Features
Read full description

Boost Your Productivity with 4.Do – The Eisenhower Matrix Task Organizer Tired of feeling overwhelmed? Struggling to decide what to work on first? 4.Do helps you focus on what truly matters with the Eisenhower Matrix, the prioritization method featured in Dr. Stephen R. Covey's The 7 Habits of Highly Effective People. 4.Do is your checklist and task management tool, empowering you to organize, prioritize, and tackle goals with ease. Not sure which quadrant a task belongs in? Let on-device AI suggest it. Capture tasks by voice, from a photo, with Siri, or straight from a notification, then see your week at a glance in Calendar view. With 4.Do Cloud, everything stays in sync across iPhone, iPad, Mac, and other platforms. Key Features 4-Quadrant Matrix: Visualize and prioritize tasks by urgency and importance. On-Device AI Suggestions: Type a task and 4.Do recommends which quadrant it belongs in. Runs entirely on your device, so your tasks never leave it. Capture Anywhere: Add tasks by voice, scan them from a photo or screenshot, or use Quick-Add right from a notification. Siri & Spotlight: Add, find, and complete tasks by voice or from your home screen search. Calendar View: See your tasks grouped by due date so nothing sneaks up on you. 4.Do Cloud: Sync across all your Apple devices and other platforms. Focused Mode: Zoom in on a single quadrant to work without distraction. Subtasks & Checklists: Break projects into actionable steps and track progress. Reminders & Recurring Tasks: Stay ahead of deadlines and build lasting habits. Smart Search: Fuzzy matching finds your task even if you misspell it. Filters & Sorting: Organize your to-do list by priority, due date, or custom tags. Attachments: Add photos for context. Collaboration: Share lists and tasks with others. Make It Yours: Rename quadrants, choose color tones, adjust contrast, pick empty-state animations, and add widgets. Your Productivity, Simplified Whether you're tackling errands, managing a checklist, planning long-term goals, or building daily habits, 4.Do keeps you focused and efficient, helping you achieve more in less time while staying aligned with your priorities. Start Today Download 4.Do and take control of your tasks, time, and goals. 4.Do is free, with a Premium upgrade for full access to all features. Subscription plans: – Monthly – $4.99/month – Yearly – $29.99/year The subscription automatically renews unless auto-renewal is turned off at least 24 hours before the end of the current period. Payment will be charged to your iTunes account at confirmation of purchase. Account will be charged for renewal within 24 hours of the end of the current period, and the cost of the renewal will be provided. Subscriptions may be managed by the user. Auto-renewal may be turned off by going to the user's Account Settings after purchase. No cancellation of the current subscription is allowed during active subscription period. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication. For more information: Terms of Use - https://www.4do.app/about/termsandconditions/ios Privacy Policy - https://www.4do.app/about/privacy-policies/ios

About

When Did I…? Routine Memory

Features
Read full description

Remember the things life makes easy to forget. When Did I…? helps you remember when you last did the routines that matter. Whether it's changing the bedsheets, watering the plants, cleaning the coffee machine, replacing the water filter, taking medication or tracking your daily water intake, everything is only a tap away. No complicated habit tracking. No streaks to lose. No pressure. Just a calm record of life's recurring routines. Designed for real life • Record tasks with a single tap • See instantly what needs your attention • Track time-based and count-based routines • Build routines that fit your own life • Interactive widgets for quick updates • Beautiful themes • Works beautifully in Light and Dark Mode Built around calm, not guilt Most habit trackers are designed to push you. When Did I…? is designed to reassure you. The app simply answers the question: "When did I last do that?" Privacy first Your routines stay on your device. No account. No advertising. No tracking. No unnecessary data collection. Premium Unlock unlimited routines with a simple one-time purchase. No subscriptions. No recurring fees. Buy once and keep it forever. Privacy Policy: https://when-did-i.com/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

4.Do4 screens
When Did I…? Routine Memory4 screens

Verdict

The call

The clearest difference is update cadence: 4.Do at every 5 days against When Did I…? Routine Memory's every 2 months. 4.Do also leads on device support (3 vs 1). When Did I…? Routine Memory's advantage is iOS requirement (18.6 vs 26.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 4.Do sells 6 in-app purchases, starting at $1.99 per month and When Did I…? Routine Memory sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

4.Do ships an update every 5 days, When Did I…? Routine Memory every 2 months. The most recent releases landed on September 28, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level
4.Do versus When Did I…? Routine Memory: the parameters behind the verdict, then further details
Parameter4.DoWhen Did I…? Routine Memory
PriceFreeFree
Rating4.9 (17 ratings) — better—
Positive reviews90.0% of reviews—
Number of ratings17 — better—
Update frequencyEvery 5 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS26.018.6 — better
Further details — not scored
Size160 MB12 MB
Age rating4+4+
DeveloperAyodeji ShoolaMartyn Thompson

In-app purchases

6 purchases

4.Do

Subscriptions6
  • Monthly7 Days trial$1.991 Month
  • Monthly7 Days trial$4.991 Month
  • Monthly Premium$4.991 Month
Show 3 more
  • Yearly14 Days trial$19.991 Year
  • Yearly Premium$29.991 Year
  • Yearly7 Days trial$29.991 Year
2 purchases

When Did I…? Routine Memory

Subscriptions2
  • When Did I Premium$3.991 Month
  • When Did I Premium7 Days trial$19.991 Year

Questions

Is 4.Do free?
4.Do is free to download, with in-app purchases available.
Is When Did I…? Routine Memory free?
When Did I…? Routine Memory is free to download, with in-app purchases available.
Do 4.Do or When Did I…? Routine Memory have ads?
Neither 4.Do nor When Did I…? Routine Memory shows ads.
Which is updated more often, 4.Do or When Did I…? Routine Memory?
4.Do ships an update every 5 days, and When Did I…? Routine Memory every 2 months. Most recently, 4.Do was updated on September 28, 2026 and When Did I…? Routine Memory on October 7, 2026.

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