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Best Octo alternatives: apps like Octo: Learn Base Conversion

10+ similar apps compared and reviewed

4.8 avg rating
10 free apps
Updated November 2026
Octo: Learn Base Conversion
📚 Education
🔧 Utilities

Octo is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to Octo

CCNA 200-301 Exam Prep - 2026#1

CCNA 200-301 Exam Prep - 2026 by Thanh Hung

Cisco Practice Tests & Quiz
Editor's Choice
📚 Education
4.8😊(486 ratings)
FreeAdsIn-App Purchases
CCNA 200-301 Exam Prep - 2026 screenshot 1
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CCNA 200-301 Exam Prep - 2026 screenshot 3
CCNA 200-301 Exam Prep - 2026 screenshot 4
CCNA 200-301 Exam Prep - 2026 screenshot 5
CCNA 200-301 Exam Prep - 2026 screenshot 6

Prepare for the Cisco CCNA 200-301 certification exam with comprehensive practice tests and quizzes. Features an AI study assistant, personalized study plans, and detailed explanations to help you pass on your first attempt.

What We Love

  • 🚀 Great study tool
  • 👍 Helpful explanations
  • 🚀 Effective for CCNA exam prep
  • 🚀 Useful practice questions
  • 👍 Simple and intuitive

Room to Improve

  • 🐛 Some incorrect answers
  • 🐛 Bugs and glitches
  • 💰 Expensive subscription
  • 💰 Ads in paid version
  • 🤔 Sync issues between devices
CompTIA A+ Practice Test 2026#2

CompTIA A+ Practice Test 2026 by Thanh Hung

Core 1&2 V15 220-1201/220-1202
Strong Contender
📚 Education
4.9😊(4.7K ratings)
FreeAdsIn-App Purchases
CompTIA A+ Practice Test 2026 screenshot 1
CompTIA A+ Practice Test 2026 screenshot 2
CompTIA A+ Practice Test 2026 screenshot 3
CompTIA A+ Practice Test 2026 screenshot 4
CompTIA A+ Practice Test 2026 screenshot 5
CompTIA A+ Practice Test 2026 screenshot 6

Prepare for your CompTIA A+ certification with realistic practice exams and AI-powered study tools. Master IT fundamentals, including hardware, networking, operating systems, and security, with detailed explanations and progress tracking.

What We Love

  • 🚀 Great study tool
  • 👍 Convenient for on-the-go learning
  • 💡 Helpful explanations for wrong answers
  • 🚀 Excellent practice questions
  • 👍 User-friendly interface
  • 👍 Comprehensive coverage of exam topics

Room to Improve

  • 🐛 Grammatical/wording issues in questions
  • 🔒 Paywall limits access to full features
  • 🐛 Incorrect/outdated answers in some questions
  • 🐛 Repeated questions in practice tests
CompTIA Security+ Exam Prep#3

CompTIA Security+ Exam Prep by Thanh Hung

SY0-701 Practice Test & Quiz
Worth Considering
📚 Education
4.9😊(6.6K ratings)
FreeAdsIn-App Purchases
CompTIA Security+ Exam Prep screenshot 1
CompTIA Security+ Exam Prep screenshot 2
CompTIA Security+ Exam Prep screenshot 3
CompTIA Security+ Exam Prep screenshot 4
CompTIA Security+ Exam Prep screenshot 5
CompTIA Security+ Exam Prep screenshot 6

Prepare for the CompTIA Security+ SY0-701 exam with realistic practice tests and AI-powered guidance. Master cybersecurity domains, track your progress, and receive personalized feedback to ensure you pass with confidence.

What We Love

  • 🚀 Well-organized modules
  • 👍 Helpful explanations for answers
  • 🚀 Ability to memorize important information
  • 👍 Gamified learning experience
  • 🚀 Excellent practice questions
  • 👍 Accurate to real exam questions
  • 🚀 Comprehensive study material
  • 👍 Useful for last-minute practice
  • 🚀 Effective study tool
  • 👍 Portable and convenient

Room to Improve

  • 💰 Premium version is expensive
  • 🐛 Inconsistent question formatting and wording
  • 🐛 Some incorrect answers and explanations
  • 🐛 Inability to revisit skipped questions
  • 🐛 Weak performance on cellular data
  • 🐛 Progress tracking issues when changing exam date

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Learn programming languages like Python, Java, and C# through interactive lessons and hands-on practice. This app offers bite-sized courses, coding challenges, and AI-powered support to help you build practical coding skills on the go. Join millions of learners worldwide advancing their careers and creating real-world solutions.

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edX online learning
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Access thousands of online courses and degree programs from top universities and companies. Upskill in critical disciplines, strengthen your resume, and advance your career on your own schedule. Stream content, download materials, and test your knowledge with quizzes and exams.

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Mimo: Learn Python Coding & AI
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Learn to code in Python, JavaScript, HTML, CSS, and SQL with hands-on projects and AI-assisted development tools. Build a portfolio of real-world applications and gain the skills needed for a developer career.

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Access and study your digital textbooks from anywhere. This app allows students to read, take notes, highlight, bookmark, and use text-to-speech for a flexible learning experience on the go.

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