Comparison

Mathematics 3rd grade vs Plumber Prep

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

Head to head
About

Mathematics 3rd grade

Features
Read full description

Mathematical exercises: addition, subtraction, multiplication and division

About

Plumber Prep

Calculate minimum pipe diameter and access over 500 practice questions for plumbing licensing exams. Study drainage, venting, and water supply systems offline with detailed code references. Track your progress to ensure exam readiness.

Highlights
  • Pipe diameter calculation
  • 500+ practice questions
  • IPC & UPC code coverage
  • Offline study mode
  • Progress tracking
  • Reference tables
Features
Read full description

Prepare for your plumbing licensing exam with practice questions, explanations, calculation tools, and progress tracking. PRACTICE AND STUDY More than 300 IPC 2021 questions, plus supplementary UPC 2021, IPC 2024, gas piping, and general content. Coverage varies by code; IPC 2021 is the primary question bank. Topics include drainage, venting, water supply, backflow prevention, and fixture units. PLUMBING TOOLS Use pipe slope, sizing, and offset calculators alongside reference material. These are study aids; verify the applicable code and local requirements before using results for an installation. OFFLINE STUDY Study the bundled content without internet and track progress by category. Purchasing and restoring access require a connection. PRO ACCESS See available plans and current prices in the app. Monthly access includes a 3-day free trial for eligible subscribers and renews automatically. Lifetime access is a one-time purchase with no free trial. Annual access is billed once per year with no free trial. Payment is charged to your Apple account. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage or cancel subscriptions in your App Store account settings. Privacy Policy: https://www.voltexam.com/privacy Terms: https://www.voltexam.com/terms Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Mathematics 3rd grade2 screens
Plumber Prep4 screens

Verdict

The call

The clearest difference is in-app purchases: Mathematics 3rd grade at none against Plumber Prep's 2. Mathematics 3rd grade also leads on device support (3 vs 1) and iOS requirement (8.0 vs 17.0). On price and ads 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. Plumber Prep sells 2 in-app purchases, starting at $6.99 per month. Mathematics 3rd grade asks for nothing beyond the download.

Scorecard3 real differences · 6 level
Mathematics 3rd grade versus Plumber Prep: the parameters behind the verdict, then further details
ParameterMathematics 3rd gradePlumber Prep
PriceFreeFree
Rating—5.0 (4 ratings) — better
Number of ratings—4 — better
Update frequency—Every 4 months
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS8.0 — better17.0
Further details — not scored
Size28 MB9 MB
Age rating4+4+
DeveloperSergey NovikovDeeun Inc.

In-app purchases

None

Mathematics 3rd grade

No in-app purchases

2 purchases

Plumber Prep

Subscriptions1
  • Plumber Prep Pro Monthly$6.991 Month
One-time1
  • Pro — Lifetime Access$17.99

Questions

Is Mathematics 3rd grade free?
Mathematics 3rd grade is free to download, with no in-app purchases.
Is Plumber Prep free?
Plumber Prep is free to download, with in-app purchases available.
Do Mathematics 3rd grade or Plumber Prep have ads?
Neither Mathematics 3rd grade nor Plumber Prep shows ads.

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