Comparison

Sumizeit vs KeepMind

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

Head to head
About

Sumizeit

Access concise summaries of non-fiction books in text, audio, infographic, podcast, and video formats. Learn key insights from experts in personal development, career, health, and more, in just minutes a day. Offers short audio courses for further learning.

Highlights
  • Text, audio, video book summaries
  • Infographic and podcast summaries
  • Short audio courses
  • Personal development topics
  • Career and success advice
  • Expert-curated content
  • Send summaries to Kindle
Features
Read full description

Sumizeit is more than a book summary app. It's your all-in-one app for learning, personal growth, and mindfulness. It a book summary app / micro learning app / and super cool learning app. Get the key ideas from 1,000+ bestselling nonfiction books in just 15 minutes — or even 5. Then go beyond books with bite-sized courses, skill-building lessons, daily challenges, riddles, podcast summaries, and guided sessions for meditation, sleep, relaxation, and focus. Whether you have 5 minutes or an hour, Sumizeit helps you make the most of your time. READ LESS. LEARN MORE. GROW EVERY DAY. WHY SUMIZEIT? Most book summary apps stop at summaries. Sumizeit goes further. Read a book summary on your commute. Take a quick course during lunch. Challenge your brain with a daily riddle. Build a practical skill. Listen to a podcast summary while walking. Or unwind with a guided meditation before bed. One app. More ways to grow. WHAT YOU GET WITH SUMIZEIT • 2,500+ BOOK SUMMARIES Discover the key ideas from bestselling nonfiction books including Atomic Habits, The Lean Startup, Thinking, Fast and Slow, The 4-Hour Workweek, and hundreds more. • 10,000+ PODCASt SUMMARIES Get comprehensive summaries of your favorite podcasts episodes. • 5 & 15-MINUTE SUMMARIES Short on time? Choose between quick 5-minute summaries and more detailed 15-minute versions. • TEXT, AUDIO, VIDEO & INFOGRAPHICS Learn your way. Read, listen, watch, or explore visual summaries. • BITE-SIZED COURSES Go beyond books with short courses covering fascinating and useful topics. Learn something new without sitting through hours of lectures. • MIND: MEDITATION, SLEEP & FOCUS Learning isn't always about consuming more information. Give your mind time to reset with guided sessions for meditation, relaxation, sleep, focus, and mindfulness. • DAILY CHALLENGES & RIDDLES Exercise your brain every day with quizzes, riddles, interesting questions, and challenges. Earn points, build streaks, and turn learning into a daily habit. • SKILL CARDS Build useful skills through bite-sized lessons and practical exercises. • QUIZZES & EXERCISES Test what you've learned and turn ideas into action with quizzes, exercises, and expert analysis. • PODCAST SUMMARIES Get the biggest ideas and takeaways from popular podcast episodes in minutes. • PERSONALIZED RECOMMENDATIONS Tell us your interests and goals, and we'll help you discover what to learn next. • HIGHLIGHTS & NOTES Save important ideas, highlight passages, and build your own personal knowledge library. • COMMUNITY Discuss books, exchange ideas, and learn with other curious people. • SEND TO KINDLE Send summaries directly to your Kindle and read wherever you prefer. • DARK MODE Enjoy a comfortable reading experience day or night. • NEW CONTENT EVERY WEEK New summaries and learning experiences are added regularly. MAKE 5 MINUTES COUNT Read a summary. Learn a new skill. Take a course. Solve a riddle. Test your knowledge. Discover a podcast. Meditate. Relax before bed. Sumizeit turns the small moments in your day into opportunities to learn, think, grow, and recharge. WHAT REVIEWERS ARE SAYING "It's like Spark Notes for adults." — Mashable "An incredibly easy way to absorb the biggest of thoughts." — Cult of Mac "An excellent tool for those looking to expand their knowledge efficiently." — AppReview360 Start learning today. Terms and Conditions: https://sumizeit.com/terms Privacy Policy: https://sumizeit.com/privacy

About

KeepMind

This app provides structured learning and AI-era insights to help professionals stay valuable in a rapidly changing job market. It offers curated learning paths, deep book summaries, and a unique assessment to track your progress and build a competitive edge.

Highlights
  • AI-era learning paths
  • EvolveScore assessment
  • Deep book insights
  • Audio mode
  • Structured growth system
  • Daily strategic insights
Features
Read full description

AI is reshaping the job market faster than ever. The real question isn't how many books you read. It's whether you're upgrading fast enough. KeepMind is not just a book summary app. It's a structured learning system designed to help you stay valuable in the age of AI. Turn your daily minutes into long-term competitive advantage. ◇ WHAT YOU GET ▶ EvolveScore — Know Where You Stand Before you read a single book, measure your real AI-era exposure. A 3-minute assessment gives you a score across Automation Risk, Career Resilience, and Adaptability — with a clear action plan. Every book you complete moves your score. ▶ AI-Era Learning Paths Curated knowledge tracks focused on AI leverage, career resilience, strategic thinking, and income growth. ▶ Deep Insights in 40 Minutes Go beyond surface summaries. Understand frameworks, decisions, and mental models that matter. ▶ Audio Mode Anywhere Upgrade your thinking while commuting, walking, or working out. ▶ Structured Growth System Not random reading — intentional learning aligned with the AI economy. ▶ Daily Strategic Insights Stay ahead with fresh perspectives every day. ▶ Highlights & Notes Capture ideas that sharpen your competitive edge. ◇ WHY KEEPMIND? ◆ Stay Valuable in the Age of AI Build skills that machines can't easily replace. ◆ Strengthen Career Resilience Develop long-term strategic thinking and adaptability. ◆ Increase Your Leverage Learn how to work with AI — not compete against it. ◆ Turn Downtime into Upgrade Time Every commute becomes an investment in your future. ◇ WHO IT'S FOR • Professionals navigating AI disruption • Founders and operators seeking strategic advantage • Career switchers planning their next move • Lifelong learners who want more than surface knowledge ◇ USER FEEDBACK ■ "Helped me rethink how AI impacts my career." ■ "Feels less like an app, more like a system." ■ "Finally a learning app aligned with today's world." ◇ CALL TO ACTION Upgrade yourself before AI does. Download KeepMind and start building your edge today.

Screenshots

Sumizeit4 screens
KeepMind4 screens

Verdict

The call

The clearest difference is rating: KeepMind at 5.0 against Sumizeit's 4.5. KeepMind also leads on review sentiment (100% vs 78%). Sumizeit's advantage is ratings volume (282 vs 4) and update cadence (every 4 days vs fortnightly). On price, ads, in-app purchases and monetization model 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. Sumizeit sells 19 in-app purchases, starting at $0.99 per year and KeepMind sells 4 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

KeepMind holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Sumizeit has 282 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 78% of Sumizeit's written reviews are positive against 100% of KeepMind's.

UpkeepUpdate frequency

Sumizeit ships an update every 4 days, KeepMind fortnightly. The most recent releases landed on October 29, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
Sumizeit versus KeepMind: the parameters behind the verdict, then further details
ParameterSumizeitKeepMind
PriceFreeFree
Rating4.5 (282 ratings)5.0 (4 ratings) — better
Positive reviews77.8% of reviews100.0% of reviews — better
Number of ratings282 — better4
Update frequencyEvery 4 days — betterFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size59 MB46 MB
Age rating4+4+
DeveloperScomy IncBeijing Zhongxiang Enterprise Management Consulting Co., Ltd.

Customer experience

Sumizeit

All ratings282 ratings
Positive88.7%
Neutral3.2%
Negative8.2%
Written reviews27 reviews
Positive77.8%
Neutral3.7%
Negative18.5%

KeepMind

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Sumizeit

Reported bugs

8 issues
  • Crashes when opening Challenges
  • Crashes when bookmarking
  • Crashes when selecting interests
  • App crashes immediately on various actions
  • Login with Gmail not working
Show 3 more
  • Account not updating from free to lifetime
  • Dark mode not functioning correctly
  • Summaries oversimplified, missing key information

Requested features

2 requests
  • More video summaries
  • Sign In with Apple

KeepMind

Not enough reviews yet to summarise bugs or requests.

In-app purchases

19 purchases

Sumizeit

Subscriptions14
  • Sumizeit Yearly Subscription$0.991 Year
  • Sumizeit Monthly Subscription$0.991 Month
  • SumizeitMonthly$4.991 Month
Show 11 more
  • Sumizeit Monthly Subscription$4.991 Month
  • Sumizeit Monthtly Subscription$5.991 Month
  • Sumizeit Monthly$6.991 Month
  • Sumizeit Yearly Subscription$7.991 Year
  • Sumizeit Premium Monthly$12.991 Month
  • SumizeItYearlySubscription$24.991 Year
  • Sumizeit Yearly 50% off$24.991 Year
  • Sumizeit Yearly Subscription$39.991 Year
  • Subscription Annual $39.99$39.991 Year
  • Sumizeit Yearly Subscription$49.991 Year
  • Sumizeit Yearly Subscription$69.001 Year
One-time5
  • Intelligence Type Test Results$0.99
  • 20 Infographics$9.99
  • 20+ Infographics$19.99
Show 2 more
  • Sumizeit Lifetime Subscription$69.99
  • Sumizeit Lifetime$99.99
4 purchases

KeepMind

Subscriptions4
  • Premium (Weekly)$4.997 Days
  • Premium (Monthly)$12.991 Month
  • Premium (Yearly Special)$29.991 Year
Show 1 more
  • Premium (Yearly)3 Days trial$49.991 Year

Questions

Is Sumizeit free?
Sumizeit is free to download, with in-app purchases available.
Is KeepMind free?
KeepMind is free to download, with in-app purchases available.
Which has better reviews, Sumizeit or KeepMind?
KeepMind is rated higher. Sumizeit averages 4.5 out of 5 from 282 ratings, while KeepMind averages 5.0 from 4 ratings.
Do Sumizeit or KeepMind have ads?
Neither Sumizeit nor KeepMind shows ads.
Which is updated more often, Sumizeit or KeepMind?
Sumizeit ships an update every 4 days, and KeepMind fortnightly. Most recently, Sumizeit was updated on October 29, 2026 and KeepMind on October 8, 2026.

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