Comparison

DevPrep vs Last Days Devs

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

Head to head
About

DevPrep

Features
Read full description

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? โ€ข AI GRADING ENGINE: Our local vector-based AI analyzes your speech for technical accuracy, logic, and clarity. Get a score (0-100) instantly. โ€ข PRIVACY & FAST: All grading happens securely on your device. Your voice recording is processed locally. โ€ข 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

Last Days Devs

Features
Read full description

Whether or not it is the last days for devs, we will be devs. Stop losing precious learning time to spotty WiFi and buffering videos. Last Days Devs is the developer learning platform built for how you actually live โ€” on the subway, in waiting rooms, during lunch breaks, or anywhere life takes you. Download once and learn forever, with zero internet required. Passive video watching doesn't build skills. Our method does: - 1,750+ bite-sized lessons you can finish in 5-10 minutes - 15,000+ practice questions that test real understanding - Multiple formats: code output, fill-in-blank, multiple choice - Instant feedback and detailed explanations LANGUAGES Python, JavaScript, TypeScript, Java, C#, Go, Rust, Ruby FRAMEWORKS React, Vue.js, Angular, Next.js, Spring Boot, ASP.NET Core, Blazor, NET MAUI DEVOPS & TOOLS Docker & Kubernetes, Git, Terminal Mastery CAREER PREP Algorithms & Data Structures, System Design, Interview Mastery MODERN SKILLS Prompt Engineering, Database Design, CSS & Tailwind 300+ IN-DEPTH READING RESOURCES Deep-dive guides on React patterns, authentication, Rust, C#, .NET frameworks, and more all available offline. START FREE, NO TRICKS Five complete tracks are 100% free, forever: - Python - JavaScript - React - Java - CSS No trial periods. No credit card required. No "first lesson free" bait-and-switch. UPGRADE WHEN YOU'RE READY Last Days Devs Pro unlocks all 55 tracks, including advanced frameworks, interview preparation, and emerging skills like Prompt Engineering. BUILT FOR REAL LIFE - Works on planes, trains, and anywhere without WiFi - Pick up exactly where you left off - Track your progress across all courses - Dark mode for late-night study sessions WHO THIS IS FOR - Career changers breaking into tech - Bootcamp grads filling knowledge gaps - Self-taught developers going deeper - Interview candidates who need to practice - Professionals learning new stacks - Anyone tired of coding apps that need constant internet Your commute. Your lunch break. Your time. Make it count. Download Last Days Devs and start learning today Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://docs.google.com/document/d/1cHQ6ijQAnIjswrMV3Bj5dHNTcPJXcDIWu7-iqSTtmCg/edit?usp=sharin

Screenshots

DevPrep4 screens
Last Days Devs4 screens

Verdict

The call

The clearest difference is update cadence: DevPrep at every 2 days against Last Days Devs's every 6 months. Last Days Devs's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support 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. DevPrep sells 5 one-off in-app purchases and Last Days Devs sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

DevPrep ships an update every 2 days, Last Days Devs every 6 months. The most recent releases landed on September 24, 2026 and September 8, 2026 respectively.

Scorecard2 real differences ยท 4 level
DevPrep versus Last Days Devs: the parameters behind the verdict, then further details
ParameterDevPrepLast Days Devs
PriceFreeFree
Update frequencyEvery 2 days โ€” betterEvery 6 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.113.0 โ€” better
Further details โ€” not scored
Size149 MB61 MB
Age rating4+4+
DeveloperThieu KhueSeungil Park

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
2 purchases

Last Days Devs

Subscriptions1
  • Monthly Subscription$3.991 Month
One-time1
  • Lifetime Access$5.99

Questions

Is DevPrep free?
DevPrep is free to download, with in-app purchases available.
Is Last Days Devs free?
Last Days Devs is free to download, with in-app purchases available.
Do DevPrep or Last Days Devs have ads?
Neither DevPrep nor Last Days Devs shows ads.
Which is updated more often, DevPrep or Last Days Devs?
DevPrep ships an update every 2 days, and Last Days Devs every 6 months. Most recently, DevPrep was updated on September 24, 2026 and Last Days Devs on September 8, 2026.

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