Comparison

AlgoNinja vs 100DaysOfCode

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

Head to head
About

AlgoNinja

Features
Read full description

AlgoNinja is your ultimate platform for honing coding skills and preparing for technical interviews. With a vast library of algorithmic challenges across various difficulty levels, AlgoNinja helps you master essential concepts, from data structures to advanced problem-solving techniques. Track your progress, receive instant feedback, and tackle new problems added regularly. Whether you’re a beginner or a seasoned coder, AlgoNinja provides the tools you need to succeed in your coding journey and ace your interviews. Elevate your coding game and join a community of learners committed to excellence

About

100DaysOfCode

Features
Read full description

100DaysOfCode is more than a coding tracker – it's your companion in building a real habit of programming. Inspired by the popular #100DaysOfCode challenge, this app is designed to keep you motivated, consistent, and connected throughout your learning journey. Start Your 100-Day Challenge Begin your personal coding journey with a structured tracker to mark each day’s progress. Daily Challenges & Learning Ideas Get fresh ideas every day β€” practice problems, project suggestions, and fun topics across languages. No Login, No Distractions Simple, clean interface designed to help you focus on progress, not profiles. Beginner-Friendly & Language-Agnostic Whether you're learning Python, Java, Reactjs, SQL β€” it’s for everyone.

Screenshots

AlgoNinja4 screens
100DaysOfCode4 screens

Verdict

The call

The clearest difference is iOS requirement: 100DaysOfCode at 15.1 against AlgoNinja's 17.5. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference Β· 4 level
AlgoNinja versus 100DaysOfCode: the parameters behind the verdict, then further details
ParameterAlgoNinja100DaysOfCode
PriceFreeFree
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS17.515.1 β€” better
Further details β€” not scored
Size4 MB26 MB
Age rating4+4+
DeveloperAleksandr TitovPraveen Kumar

In-app purchases

None

AlgoNinja

No in-app purchases

None

100DaysOfCode

No in-app purchases

Questions

Is AlgoNinja free?
AlgoNinja is free to download, with no in-app purchases.
Is 100DaysOfCode free?
100DaysOfCode is free to download, with no in-app purchases.
Do AlgoNinja or 100DaysOfCode have ads?
Neither AlgoNinja nor 100DaysOfCode shows ads.

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