Comparison

BubbleMomo vs BlackLock

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

Head to head
About

BubbleMomo

This app uses persistent, customizable reminders to help you complete tasks. It features varied reminder messages and a fun 'Crazy Bubble Mode' for stress relief. The goal is to ensure you finish what you start with a cute and clingy approach.

Highlights
  • Persistent reminders until task completion
  • Customizable reminder frequency
  • Varied daily reminder messages
  • Crazy Bubble Mode for stress relief
  • Task bubbles to pop upon completion
Features
Read full description

BubbleMomo is an adorably clingy memo app that keeps reminding you until you actually finish your task — ovo Each task becomes a bubble and joins the app. Once you're done, come back and pop it! After you pop it, it won’t keep bugging you anymore~ Features: - Persistent Reminders: Even if you close the app, it’ll keep reminding you until you finish the task and come back to pop the bubble. - Custom Reminder Frequency: From every 30 minutes to once a week, or even no notifications at all — totally up to your mood. - Varied Reminder Messages: The style of reminders changes daily — like gently saying “Don’t forget your homework~” today, playfully asking “Still haven’t done your homework?” tomorrow, and then firmly warning “This is really your last reminder — do it now!” Keeps things interesting. - Crazy Bubble Mode: Feeling stressed? Enter the frenzy mode to furiously pop bubbles and earn points. Super relaxing and satisfying! BubbleMomo is a super clingy and super cute app! Sometimes gently reminding, sometimes a bit naggy — but always with one goal: to help you get things done. All reminder notifications are used purely to help you remember your tasks. No ads, no weird stuff. Promise.

About

BlackLock

This app is a comprehensive study tool that helps you capture notes, link concepts, and visualize relationships. It transforms your material into flashcards and quizzes, offering active recall practice and the ability to import and annotate documents.

Highlights
  • Rich text note-taking
  • Concept linking with backlinks and tags
  • Interactive mind map visualization
  • AI-powered flashcard generation
  • Active recall blackout study mode
  • PDF, image, and slide import
  • Annotation with Apple Pencil
Features
Read full description

BlackLock The all-in-one study system that connects your ideas and turns them into mastery. BlackLock isn't just a notes app, it's a thinking tool. Capture rich notes, link concepts, visualize relationships, and instantly transform your material into flashcards and quizzes — all in one seamless workspace. Notes That Think With You Write in a powerful rich text editor with headers, bold, italic, highlights, checklists, and more. Use [[backlinks]] and #tags to connect ideas naturally. As your knowledge grows, backlinks build automatically — turning scattered notes into a structured web of understanding. Mind View (Pro Feature) See your knowledge as a living, interactive graph. Hexagonal nodes float in a physics-based layout, revealing how your ideas connect. Filter by tags, group by color, and fine-tune layout forces to explore your thinking from every angle. Your notes don't just sit in folders — they form a network. AI-Powered Flashcards (Pro Feature) Turn highlights into study material instantly. Generate multiple choice, select-all-that-apply, or free response flashcards with one tap. Study in quiz mode with instant feedback and score tracking so you always know where you stand. Blackout Study Mode (Pro Feature) Transform any note into active recall practice. Use a precision slider to control how much content is hidden. BlackLock intelligently prioritizes key terms, nouns, and verbs to maximize retention. Mark essential concepts with the Always Blackout highlighter so they're hidden every time — no matter the setting. Import & Annotate Bring everything into one place. Import PDFs, images, and PowerPoint slides. Annotate with Apple Pencil using built-in markup tools, and keep your study materials seamlessly integrated with your notes. BlackLock helps you move from collecting information to mastering it. BlackLock Pro Features are available after purchase. EULA - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

BubbleMomo4 screens
BlackLock4 screens

Verdict

The call

The clearest difference is rating: BlackLock at 5.0 against BubbleMomo's 4.4. BubbleMomo's advantage is review sentiment (60% vs 50%) and ratings volume (10 vs 2). On price, update cadence, 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. BubbleMomo sells 2 in-app purchases, starting at $0.99 per month and BlackLock sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

BlackLock holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: BubbleMomo has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 60% of BubbleMomo's written reviews are positive against 50% of BlackLock's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

BubbleMomo ships an update fortnightly, BlackLock every 3 weeks. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.

Scorecard4 real differences · 6 level
BubbleMomo versus BlackLock: the parameters behind the verdict, then further details
ParameterBubbleMomoBlackLock
PriceFreeFree
Rating4.4 (10 ratings)5.0 (2 ratings) — better
Positive reviews60.0% of reviews — better50.0% of reviews
Number of ratings10 — better2
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better26.0
Further details — not scored
Size39 MB20 MB
Age rating4+4+
DeveloperPop Up LimitedGOAT STEW LLC

Customer experience

BubbleMomo

All ratings10 ratings
Positive80.0%
Neutral10.0%
Negative10.0%
Written reviews5 reviews
Positive60.0%
Neutral20.0%
Negative20.0%

BlackLock

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

2 purchases

BubbleMomo

Subscriptions1
  • BubbleMomo Pro$0.991 Month
One-time1
  • BubbleMomo Full Functions$5.99
2 purchases

BlackLock

Subscriptions2
  • Monthly3 Days trial$4.991 Month
  • Yearly3 Days trial$39.991 Year

Questions

Is BubbleMomo free?
BubbleMomo is free to download, with in-app purchases available.
Is BlackLock free?
BlackLock is free to download, with in-app purchases available.
Which has better reviews, BubbleMomo or BlackLock?
BlackLock is rated higher. BubbleMomo averages 4.4 out of 5 from 10 ratings, while BlackLock averages 5.0 from 2 ratings.
Do BubbleMomo or BlackLock have ads?
Neither BubbleMomo nor BlackLock shows ads.
Which is updated more often, BubbleMomo or BlackLock?
BubbleMomo ships an update fortnightly, and BlackLock every 3 weeks. Most recently, BubbleMomo was updated on October 24, 2026 and BlackLock on October 6, 2026.

Other comparisons