Comparison

Krumbs vs Critical Thinking for Coding

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

Head to head
About

Krumbs

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Turn spare moments into coding skills. Krumbs gives you tiny, hand-crafted exercises designed to help you practice programming one question at a time. Practice different ways of thinking about code: - Verbalize concepts - Predict what code does - Find bugs - Fill in the blanks Explore 500+ hand-crafted questions across courses in C# fundamentals and object-oriented programming, track your progress, and keep learning at your own pace. A few questions here and there can add up to a lot of learning. Krumbs is free to use with a daily question limit. Upgrade to Krumbs Pro to learn without daily limits. No account required. Your learning progress stays on your device. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Critical Thinking for Coding

Features
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Critical Thinking for Coding is an independent study app that helps you build better engineering judgment for real coding work. Instead of memorizing trivia, you practice reasoning through design choices, debugging paths, edge cases, and tradeoffs. It is made for students, self-taught developers, bootcamp learners, and working engineers preparing for interviews, exams, or daily project decisions. Practice 160 questions across four categories: Fundamentals, Practical Skills, Common Pitfalls, and Advanced Concepts. - Spaced repetition with FSRS interval scheduling - Weak-point heatmap to spot recurring mistakes - Daily challenge for consistent progress - Mock exams for timed, exam-like sessions - Every question includes a clear explanation - Offline practice anytime, anywhere Independent study app for Critical Thinking for Coding practice. Not affiliated with, endorsed by, or sponsored by any company, certification body, exam operator, or vendor. All trademarks belong to their respective owners. Practice offline, no login required.

Screenshots

Krumbs4 screens
Critical Thinking for Coding4 screens

Verdict

The call

The clearest difference is in-app purchases: Critical Thinking for Coding at none against Krumbs's 2. Krumbs's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Krumbs sells 2 in-app purchases, starting at $7.99 per month. Critical Thinking for Coding asks for nothing beyond the download.

Scorecard2 real differences ยท 4 level
Krumbs versus Critical Thinking for Coding: the parameters behind the verdict, then further details
ParameterKrumbsCritical Thinking for Coding
PriceFreeFree
Update frequencyโ€”Daily
AdsNo โ€” betterYes
In-app purchasesYesNo โ€” better
DevicesiPhone, iPodiPhone, iPad, iPod โ€” better
Requires iOS15.0 โ€” better15.1
Further details โ€” not scored
Size50 MB37 MB
Age rating4+4+
DeveloperChristopher OkhraviAFTW LLC

In-app purchases

2 purchases

Krumbs

Subscriptions2
  • Krumbs Pro Monthly$7.991 Month
  • Krumbs Pro Annual$29.991 Year
None

Critical Thinking for Coding

No in-app purchases

Questions

Is Krumbs free?
Krumbs is free to download, with in-app purchases available.
Is Critical Thinking for Coding free?
Critical Thinking for Coding is free to download, with no in-app purchases.
Do Krumbs or Critical Thinking for Coding have ads?
Critical Thinking for Coding shows ads; Krumbs does not.

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