Comparison

Memo Stacker vs Bedtime Quest

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

Head to head
About

Memo Stacker

Features
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Stack your everyday life. A memo app for building up your thoughts like blocks. Memo Stacker is a memo app that makes “writing” and “looking back” as simple as possible. Ideas that come to you in the moment, diary entries, ToDos, life logs. Stack every kind of record like blocks and visualize your everyday life. “What was I thinking back then?” With Memo Stacker, you never have to wonder. By using iCloud Drive, which iOS users can use for free, Memo Stacker is designed so your data is not locked inside the app. If you use the same iCloud account, your data will not be lost when you change devices, and your important notes will remain even if you delete the app. Of course, your notes belong only to your account, so no one else, including the developer, can see them. Write: Start typing as soon as you open the app. Timestamps are added automatically. Stack: Notes are stacked chronologically and automatically organized by date. View: Browse your past records beautifully in a refined timeline format. ■ Timeline Format With No Organizing Needed Open the home screen and all your notes are arranged chronologically. No more creating folders or managing file names. Just swipe to instantly revisit your past self. ■ Automatically Organized Timeline View Notes are automatically organized by date. With intuitive navigation by year, month, and day, you can find records from years ago in an instant. ■ Stats That Reveal Your Habits See how much you have written through a heatmap. The joy of continuing to write helps support your habit. ■ Customization That Feels Like You Includes beautiful modern fonts and an eye-friendly dark mode. Because it is something you use every day, Memo Stacker is designed with care for both writing comfort and appearance. Even when using Local Mode without iCloud Drive: ■ Privacy and Backup You Can Trust Notes are stored only on your device with a local-first design. When changing devices, you can easily migrate your data to the cloud using your Google account. When using Memo Stacker on a MacBook, the optimized iPad version is available.

About

Bedtime Quest

Features
Read full description

Bedtime Quest is a sleep habit game that turns keeping your bedtime into a nightly quest. You manually record the time you get into bed and the time you wake up. Based on your preset ideal bedtime, wake-up time, and sleep duration, the app evaluates your achievement. Meeting the conditions counts as a success, extends your streak, and unlocks badges. Notifications sent 30 minutes before your planned bedtime and at wake-up time naturally prompt you to take action. Key Features Manual logging of bedtime and wake-up time Custom ideal bedtime, wake-up time, and sleep duration Achievement evaluation (within ±15 minutes of ideal times) Streak tracking and badge unlocking History view showing successful days Bedtime preparation and wake-up notifications By building up moments of “I kept it today,” Bedtime Quest helps you maintain a healthy bedtime habit—naturally and without pressure.

Screenshots

Memo Stacker4 screens
Bedtime Quest3 screens

Verdict

The call

The clearest difference is in-app purchases: Bedtime Quest at none against Memo Stacker's 2. Bedtime Quest also leads on ads (none vs shown). Memo Stacker's advantage is device support (3 vs 1) and iOS requirement (16.4 vs 18.0). On price and update cadence 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. Memo Stacker sells 2 in-app purchases, starting at $2.99 per month. Bedtime Quest asks for nothing beyond the download.

UpkeepUpdate frequency

Memo Stacker ships an update every 2 weeks, Bedtime Quest weekly. The most recent releases landed on September 17, 2026 and September 15, 2026 respectively.

Scorecard4 real differences · 2 level
Memo Stacker versus Bedtime Quest: the parameters behind the verdict, then further details
ParameterMemo StackerBedtime Quest
PriceFreeFree
Update frequencyEvery 2 weeksWeekly — better
AdsYesNo — better
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS16.4 — better18.0
Further details — not scored
Size90 MB6 MB
Age rating4+4+
DeveloperTrivial Venturestanabe yutaka

In-app purchases

2 purchases

Memo Stacker

Subscriptions1
  • Pro plan Monthly$2.991 Month
One-time1
  • Remove Ads$2.99
None

Bedtime Quest

No in-app purchases

Questions

Is Memo Stacker free?
Memo Stacker is free to download, with in-app purchases available.
Is Bedtime Quest free?
Bedtime Quest is free to download, with no in-app purchases.
Do Memo Stacker or Bedtime Quest have ads?
Memo Stacker shows ads; Bedtime Quest does not.
Which is updated more often, Memo Stacker or Bedtime Quest?
Memo Stacker ships an update every 2 weeks, and Bedtime Quest weekly. Most recently, Memo Stacker was updated on September 17, 2026 and Bedtime Quest on September 15, 2026.

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