Comparison

DevPrep vs DeveloperCards

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

Head to head
About

DevPrep

Features
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You have the coding skills, but can you explain them clearly under pressure? DevPrep is the Offline-First AI Interview Coach designed specifically for Software Engineers. Stop practicing in your head. Start speaking. DevPrep simulates the pressure of a real interview, records your answer, and uses an advanced on-device AI engine to grade your response against ideal technical answers. WHY DEVPREP? • AI GRADING ENGINE: Our local vector-based AI analyzes your speech for technical accuracy, logic, and clarity. Get a score (0-100) instantly. • PRIVACY & FAST: All grading happens securely on your device. Your voice recording is processed locally. • ZERO FLUFF: 250+ curated questions from the current tech industry standards. 5 SPECIALIZED TRACKS: - SOFT SKILLS & LEADERSHIP - DATA STRUCTURES & ALGORITHMS (pro) - SYSTEM DESIGN ARCHITECT (pro) - MODERN FRONTEND ENGINEERING (pro) - BACKEND & DISTRIBUTED SYSTEMS (pro) FEATURES: - Realistic "Interviewer" Audio to simulate pressure. - "Silent Mode" for practicing on the go (multi-choice questions). - Local progress feature to track your mastery. - Offline-First architecture (Privacy focused).

About

DeveloperCards

Features
Read full description

Preparing for a .NET interview, the AWS SAA-C03 or the Claude Developer Foundations exam? DeveloperCards 2.0 turns the prep into a card collection: studying earns most of the draws that fill it. WHAT'S INSIDE Three free decks, all in English: • .NET & C# Interview: 217 cards for .NET 8 / C# 12, junior to mid. 90 question-and-answer cards and 127 multiple-choice cards; every wrong option is explained and every card quotes Microsoft Learn. • AWS Associate Architect: 371 cards for the SAA-C03, including 165 multiple-choice cards with every wrong option explained. • Claude Developer Foundations (CCDV-F): 441 cards across all 8 exam domains, including 142 multiple-choice cards. HOW DRAWS WORK • Pick a goal (add an exam date if you have one: reviews finish the day before the exam), then take a 5-card starter lesson: study each card, then check what you recall. The lesson ends with 3 draws for that pack. • Learn a new card to earn a draw for its pack: the first time you answer Remembered, Hard, Good or Easy, or get a multiple-choice card right. Clearing all due cards adds one more draw, once a day. Every other pack gives 3 draws the first time you open it. • Draws are earned, never sold. • No repeat draws: a card you have drawn never comes up again. • After 10 Commons in a row, a rare card is guaranteed: the next card is Rare or better while the pack still has a Rare or Legendary you are missing. • Open 1 or Open 10. You only spend draws for cards you receive. • Each pack saves up to 60 draws, plus 5 extra draws waiting. With nothing left to study and no draws, you get 1 free draw a day per pack. HOW STUDY WORKS Two buttons by default, Forgot and Remembered; turn on all four (Again / Hard / Good / Easy) in Settings › Study. On a multiple-choice card you decide first, tap Show options, then answer Sure, Not sure or I don't know. Reviews are scheduled with FSRS, the open-source spaced-repetition algorithm (default parameters), never more than 90 days out. A card counts as Mastered once its next review is 15 or more days away. Cards you miss go to the Mistake Book. Progress by domain shows card counts for each exam domain, never a score. Many cards show their source. Reminders are optional and you can turn them off. OFFLINE AND ACCOUNT The first cards of each deck ship inside the app, so your first lesson works with no connection. The full deck downloads when your phone is online; after that, study works offline. An account is optional: signing in adds cloud backup and lets you report a problem with a card. FROM ONE DEVELOPER DeveloperCards is an indie project: one developer built the app and the backend. Cards are drafted with AI assistance from official documentation (AWS, Anthropic, Microsoft Learn), checked by automated checks and AI review passes. If a card looks wrong, sign in and tap Report a problem under its answer. All three decks are free. LINKS Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://tartan-tortoise-e81.notion.site/DevCards-Spaced-Recall-Privacy-Policy-2bfa758eb54580db99a3ed89369f9a13 Not official exam material and not an exam simulator. AWS is a trademark of Amazon.com, Inc. Claude and Anthropic are trademarks of Anthropic, PBC. .NET and C# are trademarks of Microsoft Corporation. DeveloperCards is not affiliated with, sponsored by, or endorsed by Amazon, Anthropic or Microsoft.

Screenshots

DevPrep4 screens
DeveloperCards4 screens

Verdict

The call

The clearest difference is update cadence: DevPrep at every 2 days against DeveloperCards's every 5 days. On price, ads, in-app purchases and device support there is nothing between them.

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

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

Both are free to download. DevPrep sells 5 one-off in-app purchases and DeveloperCards sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

DevPrep ships an update every 2 days, DeveloperCards every 5 days. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

Scorecard1 real difference Ā· 5 level
DevPrep versus DeveloperCards: the parameters behind the verdict, then further details
ParameterDevPrepDeveloperCards
PriceFreeFree
Update frequencyEvery 2 days — betterEvery 5 days
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size149 MB51 MB
Age rating4+4+
DeveloperThieu KhueTimeAwake Limited

In-app purchases

5 purchases

DevPrep

One-time5
  • Backend Scale pack$9.99
  • Data Structure & Algorithms pack$9.99
  • System Design pack$9.99
Show 2 more
  • Frontend Engineering pack$9.99
  • Unlock all Pro Packs$29.99
1 purchases

DeveloperCards

Subscriptions1
  • DeveloperCards Premium$2.991 Month

Questions

Is DevPrep free?
DevPrep is free to download, with in-app purchases available.
Is DeveloperCards free?
DeveloperCards is free to download, with in-app purchases available.
Do DevPrep or DeveloperCards have ads?
Neither DevPrep nor DeveloperCards shows ads.
Which is updated more often, DevPrep or DeveloperCards?
DevPrep ships an update every 2 days, and DeveloperCards every 5 days. Most recently, DevPrep was updated on October 10, 2026 and DeveloperCards on October 8, 2026.

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