Comparison

System Design interview prep vs Hanzi 300

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

Head to head
About

System Design interview prep

This app simulates system design interviews with an AI interrogator and interactive scenarios. Practice real-world architecture problems, receive instant feedback, and track your progress to ace your next tech interview.

Highlights
  • Interactive War Room for architecture scenarios
  • AI Interrogator challenges design decisions
  • Realistic system design interview questions
  • Daily practice drills for skill sharpening
  • Detailed performance analytics
  • Instant feedback and best practice learning
Features
Read full description

ArchSim is the ultimate training ground for software engineers preparing for system design interviews. Forget passive reading—ArchSim puts you in the driver’s seat of a high-stakes engineering simulation with a fast, value-first onboarding and a 60‑second drill preview to get you into the action quickly. Key Features: Interactive War Room: Solve real-world architecture scenarios in a dynamic environment. Define requirements, estimate capacity, and design your system component by component. AI Interrogator: Face off against an intelligent Prep AI that challenges your decisions, asks follow-up questions, and probes for weaknesses in your design. Realistic Scenarios: Tackle classic and modern interview questions like “Design a URL Shortener” and “Design a Social Network.” Perfect for your job search. Daily Drills: Short 5–10 minute practice sessions to build fundamentals, track streaks, and sharpen core skills. Detailed Analytics: Track your performance, identify knowledge gaps, and monitor your improvement over time with comprehensive metrics. Debrief & Learn: Get instant feedback on your design choices and learn best practices for scalability, reliability, and maintainability. Whether you are a junior developer or a staff engineer, ArchSim provides the practice you need to ace your next tech interview and land your dream job. ----------- Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. Terms of Use: https://calico-magnolia-61e.notion.site/archsim-terms-of-use-2c6 Privacy Policy: https://calico-magnolia-61e.notion.site/archsim-privacy-policy-2c

About

Hanzi 300

Read full description

Learn your first 300 everyday Chinese characters and make them easier to recognize, write, and remember. Hanzi Bamboo is a beginner-friendly way to learn Simplified Chinese characters through visual memory hooks, clear English meanings, pinyin, stroke order, and hands-on writing practice. Start with 30 characters free. Unlock the complete 300-character course with a one-time purchase — no subscription. REMEMBER, NOT JUST REPEAT Each character comes with a memorable visual hook that connects its shape to its meaning, helping you understand and recall it instead of relying on repetition alone. EACH CHARACTER INCLUDES • Pinyin and clear English meanings • Character structure and component guidance • Animated stroke order • Hands-on Chinese writing practice • Useful example words with pronunciation BUILD YOUR FIRST 300 HANZI Progress through 15 beginner-friendly levels built around useful, everyday Chinese characters. Start with simple, visual characters, then gradually learn new ones through familiar shapes and components you’ve already seen. LEARN A LITTLE EACH DAY Set a focused daily learning goal, review characters you’ve already learned, and watch your bamboo grow as you make progress. Whether you’re beginning Mandarin Chinese or simply curious about how Chinese writing works, Hanzi Bamboo gives you a clear path to understanding and remembering your first Chinese characters. 30 characters free. 300 characters total. One-time purchase. No subscription.

Screenshots

System Design interview prep4 screens
Hanzi 3004 screens

Verdict

The call

The clearest difference is price: System Design interview prep at Free against Hanzi 300's $1.99. Hanzi 300's advantage is in-app purchases (none vs 5) and ads (none vs shown). On device support and iOS requirement 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

System Design interview prep is free to download; Hanzi 300 costs $1.99 up front. System Design interview prep sells 5 in-app purchases, starting at $3.99 per 7 days. Hanzi 300 asks for nothing beyond the download.

UpkeepUpdate frequency

System Design interview prep ships an update monthly, Hanzi 300 every 3 days. The most recent releases landed on September 26, 2026 and October 16, 2026 respectively.

Scorecard4 real differences · 6 level
System Design interview prep versus Hanzi 300: the parameters behind the verdict, then further details
ParameterSystem Design interview prepHanzi 300
PriceFree — better$1.99
Rating1.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyMonthlyEvery 3 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.617 — better
Further details — not scored
Size89 MB19 MB
Age rating4+4+
DeveloperAbdelhak El Moussaoui慧霞 侯

In-app purchases

5 purchases

System Design interview prep

Subscriptions5
  • Unlimited access$3.997 Days
  • Unlimited access$4.997 Days
  • Unlimited access$6.991 Month
Show 2 more
  • Unlimited access7 Days trial$12.991 Month
  • Unlimited access7 Days trial$99.991 Year
None

Hanzi 300

No in-app purchases

Questions

Is System Design interview prep free?
System Design interview prep is free to download, with in-app purchases available.
Is Hanzi 300 free?
Hanzi 300 costs $1.99, with no in-app purchases.
Do System Design interview prep or Hanzi 300 have ads?
System Design interview prep shows ads; Hanzi 300 does not.
Which is updated more often, System Design interview prep or Hanzi 300?
System Design interview prep ships an update monthly, and Hanzi 300 every 3 days. Most recently, System Design interview prep was updated on September 26, 2026 and Hanzi 300 on October 16, 2026.

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