Comparison

Shortform Daily Book Summaries vs Training Interval Clock

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

Head to head
About

Shortform Daily Book Summaries

Access high-quality book summaries and analyses that go beyond key ideas, offering comparative insights and interactive exercises. Learn essential lessons from bestsellers and classics, reinforced through audio narration and offline reading.

Highlights
  • 1-page summaries
  • Chapter-by-chapter analysis
  • Audio narrations
  • Interactive exercises
  • Highlighting and note-taking
  • Offline mode
Features
Read full description

Join thousands of curious Shortform readers to get smarter, faster. Get the highest quality book summaries and analyses available in the world. Shortform summaries contain the book's key ideas, plus analysis comparing those ideas to other books. Remember the key lessons from books you’ve read, and discover new books you need to read. Reinforce the key lessons with interactive exercises that challenge you to reflect on your past and improve your life. Trust in writer quality. Shortform summaries are written by professional authors, PhD’s, and Ivy League graduates. Check out Shortform summaries of this week’s NY Times bestsellers: • Sapiens, by Yuval Harari • Educated, by Tara Westover • Born a Crime, by Trevor Noah • Why We Sleep, by Matthew Walker • 12 Rules for Life, by Jordan Peterson Check out Shortform summaries of these all-time classics: • How to Win Friends and Influence People, by Dale Carnegie • Thinking, Fast and Slow, by Daniel Kahneman • The 48 Laws of Power, by Robert Greene • The 7 Habits of Highly Effective People, by Stephen Covey ===================================== KEY FEATURES • Quick 1-page summaries to understand the book at a glance • Chapter-by-chapter comprehensive summaries and analysis • 550% more ideas covered than other services • Audio narrations so you can learn on the go • #1 Bestsellers and all-time classic books • Interactive exercises to apply the key lessons to your life • Highlight your favorite passages and take notes • Share key points with friends and co-workers • 18 book categories, including Business, Health, Self-Improvement, History, and more • Printable PDF downloads for your reading convenience • Offline mode to read without Internet • Features coming soon: publishing feed, reading tracker, and more... ===================================== WHAT OUR CUSTOMERS SAY "Shortform has by far the best book guides available anywhere. They cover key points and have much more original analysis and content than other summaries.” -- Andy T. "You guys really hit it out of the park with this summary! I’ve never seen such a complete yet concise summary of this book. The exercises are perfect – not overwhelming or meager, but just right. Thanks for making me smarter every day." -- Stacey M. “If real books are like fine wine, and book summaries are box wine, Shortform is 100-proof vodka.” -- Gregg P. ===================================== CONTACT US Have questions or feedback? Email us at help@shortform.com any time. Terms of Service: https://www.shortform.com/terms Privacy Policy: https://www.shortform.com/privacy

About

Training Interval Clock

Features
Read full description

Set practice and break durations. Get notified when time's up. Stay focused and rested with this simple timer app.

Screenshots

Shortform Daily Book Summaries4 screens
Training Interval Clock2 screens

Verdict

The call

The clearest difference is price: Shortform Daily Book Summaries at Free against Training Interval Clock's $0.99. Shortform Daily Book Summaries also leads on iOS requirement (15.0 vs 17.5). Training Interval Clock's advantage is in-app purchases (none vs 4). On update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Shortform Daily Book Summaries is free to download; Training Interval Clock costs $0.99 up front. Shortform Daily Book Summaries sells 4 in-app purchases, starting at $23.99 per month. Training Interval Clock asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 3, 2026 and October 6, 2026 respectively.

Scorecard3 real differences · 7 level
Shortform Daily Book Summaries versus Training Interval Clock: the parameters behind the verdict, then further details
ParameterShortform Daily Book SummariesTraining Interval Clock
PriceFree — better$0.99
Rating4.6 (1.4K ratings) — better—
Positive reviews31.0% of reviews—
Number of ratings1.4K — better—
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.5
Further details — not scored
Size48 MB2 MB
Age rating12+4+
DeveloperShortform Inc.kitakura kengo

Bugs and requests

Shortform Daily Book Summaries

Reported bugs

5 issues
  • App crashes and freezes frequently
  • Highlighting and bookmarking issues
  • Inconsistent behavior when exiting app
  • Search function is slow and unreliable
  • App doesn't remember user's last position

Requested features

6 requests
  • Offline reading mode
  • Ability to download summaries as PDFs
  • Sync audio progress with text
  • Improved search and navigation
  • Highlight words being read in audio
Show 1 more
  • Reading list/queue functionality

Training Interval Clock

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Shortform Daily Book Summaries

Subscriptions4
  • Monthly7 Days trial$23.991 Month
  • Monthly$23.991 Month
  • Annual7 Days trial$194.991 Year
Show 1 more
  • Annual14 Days trial$194.991 Year
None

Training Interval Clock

No in-app purchases

Questions

Is Shortform Daily Book Summaries free?
Shortform Daily Book Summaries is free to download, with in-app purchases available.
Is Training Interval Clock free?
Training Interval Clock costs $0.99, with no in-app purchases.
Do Shortform Daily Book Summaries or Training Interval Clock have ads?
Neither Shortform Daily Book Summaries nor Training Interval Clock shows ads.
Which is updated more often, Shortform Daily Book Summaries or Training Interval Clock?
Shortform Daily Book Summaries ships an update every 3 weeks, and Training Interval Clock every 3 weeks. Most recently, Shortform Daily Book Summaries was updated on November 3, 2026 and Training Interval Clock on October 6, 2026.

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