Comparison

QuiddityML vs Machine Learning Engineer Prep

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

Head to head
About

QuiddityML

Master machine learning and AI with interactive coding exercises and spaced repetition. This app offers structured learning paths, practical projects, and interview preparation to build deep understanding and practical skills.

Highlights
  • Structured AI learning tracks
  • Hands-on coding exercises
  • Spaced repetition for retention
  • Beginner-friendly explanations
  • Interview preparation
  • Real-world projects
Features
Read full description

QuiddityML is for anyone who wants to truly understand machine learning and AI, not just watch videos and forget everything a week later. Short daily lessons and hands-on practice that make it stick. A Clear Roadmap Every track lays out every concept you need and the order to learn them in, so you always know what's ahead and where your gaps are. Follow the curriculum or jump straight to any concept. Short Lessons Each concept is a few slides you can finish in a busy day, with clear analogies, diagrams, real math, and worked code, instead of a 40-hour course you never finish. 11 Types Of Hands-On Exercises Reading is passive. QuiddityML makes you do the work: fill in implementations, spot bugs, trace tensors, write code from scratch. Progress through 4 tiers of difficulty with feedback on every answer. Spaced Repetition Built In Your review schedule is built from how you do in the exercises. What you struggle with comes back sooner, what you ace stays away, so you don't forget last week's concept. Math In Context, Not Up Front The Math track covers only the basics you need to start. The ML lessons teach the rest where it comes up, so you see what each equation is for. Everything In One Place Python, PyTorch, math for ML, ML foundations, NLP, computer vision, and more, in one curriculum that doesn't assume something different in every course. New tracks and concepts are added all the time. Interview Questions And Projects Every unit ends with interview questions and portfolio projects tied to what you just learned, so you walk into your next interview ready. Free: all Python, PyTorch, and Math units plus Unit 1 of every other track. Pro unlocks everything. Learn it once, then keep it. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Machine Learning Engineer Prep

Features
Read full description

Study on your phone. Continue on desktop. Use your phone on the move and a tablet or desktop when you want more room to study. Connect the same StudyCert account to continue your learning in the app and on the desktop web. Prepare for Google Cloud Professional Machine Learning Engineer with 500 practice questions and 110 key terms. Study coverage · 6 areas • Architecting low-code AI solutions • Collaborating within and across teams to manage data and models • Scaling prototypes into ML models • Serving and scaling models • Automating and orchestrating ML pipelines • Monitoring AI solutions 1. Build your foundation with key terms Use flashcards to learn meanings, exam context and selection cues. Mark terms as known or not yet known, then revisit unstudied or unfamiliar cards. Edit card content to suit your learning and restore the original when needed. 2. Practice and understand each answer Study in 50-question sets, by domain or by difficulty. Work through single- and multiple-choice questions, then read the explanation for the answer and each option. Choose all, unfinished or wrong questions; shuffle questions and choices; use a study timer; and resume where you left off. From the results of domain study, continue with key terms and related questions in the next domain. 3. Review mistakes and uncertain concepts Choose recent errors, review marks or repeated mistakes on the Review screen and practice them again. Check accuracy by domain alongside the terms you know or still need to learn. The glossary report shows term-learning status and accuracy on related questions together. 4. Check your preparation with a mock exam Practice time management with 50 questions in 120 minutes. Change answers before submission, resume a saved exam and receive grading when time expires. Afterwards, see correct, wrong and unanswered counts, your score and domain results, then revisit mistakes. This practice feature uses the included questions and does not determine an official exam score or pass result. Tools that fit your study routine Optional audio study reads terms and meanings aloud. Choose whether to include exam context and selection cues, set repeats and pauses, and control playback with the mini player. A study calendar, learning streaks, weekly goals, reminders for unmet goals and light, dark or system themes support your routine. Learning records are managed for each supported language. Some features require paid access. Check the included features and price on the purchase screen. Purchase restoration is supported. This is an independent study aid, not an official, affiliated or endorsed app of any exam administrator or certification body. Exam names and trademarks belong to their respective owners.

Screenshots

QuiddityML4 screens
Machine Learning Engineer Prep4 screens

Verdict

The call

QuiddityML and Machine Learning Engineer Prep are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both are free to download. QuiddityML sells 2 in-app purchases, starting at $19.99 per month and Machine Learning Engineer Prep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

QuiddityML ships an update weekly, Machine Learning Engineer Prep every 10 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

ScorecardNo meaningful differences
QuiddityML versus Machine Learning Engineer Prep: the parameters behind the verdict, then further details
ParameterQuiddityMLMachine Learning Engineer Prep
PriceFreeFree
Rating5.0 (7 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings7 — better—
Update frequencyWeekly — betterEvery 10 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.115.1
Further details — not scored
Size51 MB98 MB
Age rating4+4+
DeveloperQuiddityML LLCCHOI SEONGMIN

In-app purchases

2 purchases

QuiddityML

Subscriptions2
  • QuiddityML Pro Monthly$19.991 Month
  • QuiddityML Pro Yearly7 Days trial$149.991 Year
1 purchases

Machine Learning Engineer Prep

One-time1
  • Lifetime Access$4.99

Questions

Is QuiddityML free?
QuiddityML is free to download, with in-app purchases available.
Is Machine Learning Engineer Prep free?
Machine Learning Engineer Prep is free to download, with in-app purchases available.
Do QuiddityML or Machine Learning Engineer Prep have ads?
Neither QuiddityML nor Machine Learning Engineer Prep shows ads.
Which is updated more often, QuiddityML or Machine Learning Engineer Prep?
QuiddityML ships an update weekly, and Machine Learning Engineer Prep every 10 days. Most recently, QuiddityML was updated on November 5, 2026 and Machine Learning Engineer Prep on October 31, 2026.

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