Comparison

Test Prep vs Diggs

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

Head to head
About

Test Prep

Prepare for your math placement exam with extensive practice questions, detailed explanations, and timed tests. Track your progress, master key topics, and utilize flashcards for efficient studying. All content is available offline, with no account required.

Highlights
  • 317 practice questions with step-by-step explanations
  • Timed practice tests and speed drills
  • 185 flashcards for key terms and formulas
  • Topic-by-topic breakdown of results
  • Daily question goals and study streaks
  • Offline functionality, no account needed
Features
Read full description

Test Prep: ALEKS® Math Practice for the ALEKS® math placement assessment with 317 practice questions, step-by-step explanations, timed practice tests and flashcards, all in one simple app. Test Prep: ALEKS® Math covers 10 math topics, explains every answer, and shows you which topics need the most work. PRACTICE THAT EXPLAINS • 317 original practice questions, each with a step-by-step explanation • Check each answer as you go and see why it's right or wrong • Search and filter by topic and difficulty (basic, intermediate, advanced) • Practice only the questions you missed with one tap TEST YOURSELF • Placement-style practice: 30 mixed questions across all topics • Speed drills: 20 questions in 20 minutes • Topic tests: 15 questions on one topic in 20 minutes • Final review: 50 mixed questions in 75 minutes • Results with a topic-by-topic breakdown 185 FLASHCARDS • Key terms and formulas, from slope-intercept form to the quadratic formula • Swipe to sort cards into "Know it" and "Still learning" STAY ON TRACK • Daily question goal and study streak • Weekly activity chart • Accuracy and mastery for every topic 10 TOPICS • Arithmetic and Number Theory: operations, fractions, decimals, percents, primes • Algebra: linear equations, inequalities, polynomials, factoring, radicals • Functions: notation, graphs, slope, transformations, inverses • Geometry and Measurement: area, volume, angles, unit conversions • Trigonometry and Precalculus: trig values, identities, logarithms, exponentials • Statistics: mean, median, probability, distributions • Calculus basics: limits, derivatives, integrals PRIVATE AND OFFLINE No account needed. Everything works offline, and your progress stays on your device. FREE TO START The free plan includes 50 practice questions and 30 flashcards across every topic. Upgrade to Pro to unlock all 317 questions, all 185 flashcards and every test mode. PRO OPTIONS • Weekly subscription. Eligible new subscribers may get a free trial; the trial length and price are shown in the app before you buy. • Lifetime: a one-time purchase. Not a subscription. SUBSCRIPTION TERMS • Payment is charged to your Apple Account at confirmation of purchase, or when a free trial ends. • The subscription renews automatically each week unless cancelled at least 24 hours before the end of the current period. • Your account is charged for renewal within 24 hours before the end of the current period. • Manage or cancel your subscription anytime in your Apple Account settings. • Any unused part of a free trial is forfeited when you purchase a subscription. ALEKS® is a registered trademark of McGraw Hill LLC. This app is not endorsed by, sponsored by, or affiliated with McGraw Hill or ALEKS. Questions are original practice material, not actual assessment questions, and the app does not predict official scores. Support: https://www.becomechad.com/support Privacy Policy: https://www.becomechad.com/main-privacy-policy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Diggs

This AI-powered calculus tutor provides step-by-step solutions to problems, explains complex concepts, and offers adaptive practice quizzes. Visualize functions with the Graph Lab and personalize your study plan with a roadmap feature. Track your progress and stay consistent with daily goals.

Highlights
  • Step-by-step problem solutions
  • Concept explanations
  • Adaptive practice quizzes
  • Visual graph plotting
  • Personalized study roadmap
  • Progress tracking
Features
Read full description

Stop guessing. Start understanding. Diggs is your AI-powered calculus tutor and study companion — built to help you learn how to solve problems, not just copy answers. Snap a photo, type a question, or explore a concept and get clear, step-by-step guidance in seconds. Whether you're taking Calculus I, II, or III, Diggs helps you build confidence, strengthen weak spots, and stay consistent over time. SOLVE — Step-by-Step Solutions Type or photograph a calculus problem and get a complete walkthrough with the reasoning behind each step. Practice derivatives, integrals, limits, series, differential equations, and multivariable calculus with explanations designed to help you understand the process. EXPLAIN — Clear Concept Breakdowns Ask Diggs to explain topics like the chain rule, integration by parts, implicit differentiation, or convergence tests. Choose your depth: Simple or Standard. PRACTICE — Adaptive Quizzes and Exam-Style Practice Build accuracy with quizzes that respond to your level. Review feedback, improve over time, and generate exam-style practice when you want a bigger challenge. GRAPH LAB — Learn Visually Enter a function and explore it in Graph Lab. Diggs plots the graph and highlights key behavior, important points, and what to notice so you can connect formulas to visual intuition. MORE WAYS TO LEARN • Vault — Save questions from homework, notes, or textbooks and turn them into practice later. • Roadmap — Upload or paste your syllabus to build a personalized study plan around your course. • Bookmarks — Save helpful solutions and explanations for quick review. • Progress Tracking — Track accuracy, topic mastery, streaks, and learning momentum. • Daily Quests — Stay consistent with small daily goals and rewards. BUILT FOR CALCULUS STUDENTS Diggs covers limits, derivatives, integrals, series, differential equations, and multivariable calculus. It’s a private tutor in your pocket: available whenever you need help and ready to explain it one more time. FREE & PRO Diggs is free to use with limits on some features. Upgrade to Diggs Pro for unlimited hearts and expanded access across core learning features. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Privacy Policy: https://nexmath-1564f.web.app/privacy Terms of Use: https://nexmath-1564f.web.app/terms

Screenshots

Test Prep4 screens
Diggs4 screens

Verdict

The call

The clearest difference is rating: Diggs at 5.0 against Test Prep's 3.5. Diggs also leads on update cadence (every 6 weeks vs every 6 months). Test Prep's advantage is ratings volume (6 vs 2). On price, ads, in-app purchases and monetization model 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

Both are free to download. Test Prep sells 2 in-app purchases, starting at $4.99 per 7 days and Diggs sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Diggs holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 6 and 2 respectively.

UpkeepUpdate frequency

Test Prep ships an update every 6 months, Diggs every 6 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 6 level
Test Prep versus Diggs: the parameters behind the verdict, then further details
ParameterTest PrepDiggs
PriceFreeFree
Rating3.5 (6 ratings)5.0 (2 ratings) — better
Number of ratings6 — better2
Update frequencyEvery 6 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhoneiPhone, iPad — better
Requires iOS17.617.0 — better
Further details — not scored
Size2 MB98 MB
Age rating4+4+
DeveloperNikhil KumarELIAS BRUNO MENDOZAMOLEROS

Customer experience

Test Prep

All ratings6 ratings
Positive66.7%
Neutral0.0%
Negative33.3%

Diggs

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Test Prep

Subscriptions1
  • Weekly Premium3 Days trial$4.997 Days
One-time1
  • Lifetime Premium$29.99
2 purchases

Diggs

Subscriptions2
  • Diggs Pro Monthly$4.991 Month
  • Diggs Pro Annual$41.991 Year

Questions

Is Test Prep free?
Test Prep is free to download, with in-app purchases available.
Is Diggs free?
Diggs is free to download, with in-app purchases available.
Which has better reviews, Test Prep or Diggs?
Diggs is rated higher. Test Prep averages 3.5 out of 5 from 6 ratings, while Diggs averages 5.0 from 2 ratings.
Do Test Prep or Diggs have ads?
Neither Test Prep nor Diggs shows ads.
Which is updated more often, Test Prep or Diggs?
Test Prep ships an update every 6 months, and Diggs every 6 weeks. Most recently, Test Prep was updated on October 30, 2026 and Diggs on October 31, 2026.

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