Sumizeit vs FlashBooks
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
FlashBooks
Access actionable insights from hundreds of non-fiction books in 20 minutes or less. Listen to professionally narrated audiobook summaries designed for motivation and learning on the go. Download content for offline access.
- Book summaries in under 20 minutes
- Audiobook summaries
- Actionable insights
- Offline download
- Monthly new titles
- Professionally narrated audio
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Don't let that stack of books gathering dust get you down. With FlashBooks, you can read or listen to actionable insights from the world's greatest non-fiction books—quickly and easily. With hundreds of non-fiction book summaries, and new titles added to the library each month, you'll always have something new to sharpen your skills, expand your knowledge, and get motivated to accomplish your goals. GET A BOOK'S BIG IDEAS IN 20 MINUTES OR LESS. Reading a 300 page book can take weeks. Get your knowledge fix as close to now as possible... In about 20 minutes, you can digest the core concepts of the books you don't have time to read. PREMIUM AUDIOBOOK SUMMARIES. Our summaries are available as audiobooks—each of which are engaging, actionable, and inspiring... Did we mention inspiring? Our summaries are professionally narrated by motivational speaker and award-winning presenter, Dean Bokhari. Members are always telling us about how they listen to our audio book summaries over and over again as refreshers, or whenever they need a spark of motivation. Whether you're driving, relaxing, running or anything else—now you can learn and motivate yourself no matter what you're doing. DESIGNED FOR ACTION. Get actionable insights from best-selling Self-Help and Business books. Our summaries include an actionable insight with every Big Idea so that you can put your newfound knowledge to good use. With a wide range of topics to choose from, you'll always have something to learn about and take action on: Self-Improvement, Habits, Motivation, Leadership, Productivity, Negotiation, Money, Career, Business, Love, Social Skills, Relationships, Networking, Goal-Setting and more! DOWNLOAD FOR OFFLINE READING AND LISTENING. Our book summaries and audio summaries are formatted for easy reading or listening. No matter where you are. Simply select and download any summary to your mobile device and you're good to go! A paid subscription is required to access the content in the app. Try the app with the 7-day free trial. Privacy policy: https://www.getflashnotes.com/privacy/ Terms and conditions: https://www.getflashnotes.com/terms/
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Verdict
The clearest difference is monetization model: Sumizeit at free with in-app purchases against FlashBooks's subscription. Sumizeit also leads on ratings volume (282 vs 9). FlashBooks's advantage is rating (5.0 vs 4.5) and review sentiment (100% vs 78%). On price, ads, in-app purchases and device support 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
Both are free to download. Sumizeit sells 19 in-app purchases, starting at $0.99 per year and FlashBooks sells 3 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.
FlashBooks 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 9, 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 FlashBooks's.
| Parameter | Sumizeit | FlashBooks |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (282 ratings) | 5.0 (9 ratings) — better |
| Positive reviews | 77.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 282 — better | 9 |
| Update frequency | Every 4 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Subscription |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 11.0 — better |
| Further details — not scored | ||
| Size | 59 MB | 76 MB |
| Age rating | 4+ | 4+ |
| Developer | Scomy Inc | FLASHBOOKS, LLC |
Customer experience
Sumizeit
FlashBooks
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
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- 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
FlashBooks
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Sumizeit
- Sumizeit Yearly Subscription$0.991 Year
- Sumizeit Monthly Subscription$0.991 Month
- SumizeitMonthly$4.991 Month
Show 11 moreShow fewer
- 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
- Intelligence Type Test Results$0.99
- 20 Infographics$9.99
- 20+ Infographics$19.99
Show 2 moreShow fewer
- Sumizeit Lifetime Subscription$69.99
- Sumizeit Lifetime$99.99
FlashBooks
- Monthly Plan7 Days trial$14.991 Month
- Yearly Plan7 Days trial$149.001 Year
- Lifetime Subscription$599.99








