Comparison

Wastewater Operator Prep vs LogicBrain

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

Head to head
About

Wastewater Operator Prep

Prepare for your wastewater operator certification exam with extensive practice questions and detailed explanations. This app covers all treatment processes and offers personalized study plans, timed modes, and progress tracking to boost your confidence and understanding.

Highlights
  • 1,027 practice questions
  • Detailed explanations for each answer
  • Full treatment process coverage
  • Personalized daily study plans
  • Timed practice modes
  • Progress tracking and pass probability
Features
Read full description

Walk into your wastewater operator certification exam ready. Wastewater Operator Prep gives you 1,027 practice questions with a clear explanation for every single answer, so you don't just memorize the right choice - you understand the treatment science behind it. Built for candidates preparing for ABC/state wastewater treatment operator certification exams. WHY IT WORKS Passing isn't about cramming. It's about repeated, targeted practice across every area the exam tests - then reinforcing exactly what you got wrong until it sticks. - 1,027 questions written to match the real exams' style and difficulty - An explanation on every answer, so each question teaches you something - Full treatment-process coverage: Preliminary & Primary Treatment - Activated Sludge - Secondary Clarification - Disinfection - Nutrient Removal - Solids Handling & Biosolids - Laboratory & Sampling - Collection Systems - Math & Dosage Calculations - Safety & Regulations STUDY YOUR WAY - Daily Plan that sizes itself to your exam date and keeps you on pace - Quick 10 for a fast review between shifts - Timed Mode to build exam-day speed and stamina - Smart Review using spaced repetition to resurface weak spots - Full-Length Mock Exam that simulates the real thing - Missed Questions queue so nothing slips through - Custom Quiz to drill any topic on demand TRACK YOUR PROGRESS - Pass probability that updates as you practice - Accuracy broken down by topic - Streaks to keep you consistent - Exam countdown WHO IT'S FOR Wastewater treatment operators preparing for ABC or state certification exams at any grade level. START TODAY Your exam date isn't moving. Start a free trial, take your first Quick 10 today, and watch your pass probability climb. --- SUBSCRIPTION DETAILS Full access is available through an auto-renewing subscription: - Weekly: $5.99 - Monthly: $14.99 A free trial is available for new subscribers. Payment will be charged to your Apple ID account at confirmation of purchase. Your subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. Terms of Use: https://hermesdigitalbr-spec.github.io/wastewater-legal/terms.html Privacy Policy: https://hermesdigitalbr-spec.github.io/wastewater-legal/privacy.html Terms of Use (EULA): https://www.apple.com/legal/itunes/appstore/dev/stdeula/

About

LogicBrain

Features
Read full description

Every day, someone tries to fool you — ads, headlines, statistics, that guy in the meeting. LogicBrain trains you to catch them, 5 minutes a day. Not memory tricks. Not parlor games. Real reasoning. FIGHT THE FALLACY VILLAINS Every bad argument has a face. Baron Bandwagon, The Strawman, Captain Sunk Cost — 20 collectible villains, each one a real reasoning error. They ambush your workouts. Beat them twice to capture them. TRAIN FIVE FACULTIES Deduction, Argument, Probability, Systems, Decision. Adaptive workouts built from real-world material meet you exactly at your level. WATCH YOUR LQ RISE Your Logic Quotient tracks your in-app training progress. Miss a question? It returns days later as a 3x-XP rematch — spaced repetition, disguised as revenge. BUILT TO RESPECT YOU One workout a day free, forever. No ads. Your training history and progress stay on your device. The app anonymously checks logicbrain.ai for content updates. LOGICBRAIN PRO Unlimited workouts, all 10 games, every villain. Monthly, annual with a 7-day free trial for eligible new subscribers, and a one-time lifetime unlock are available at the prices shown in the app for your storefront. Payment is charged to your Apple Account. Subscriptions renew automatically unless cancelled at least 24 hours before the period ends; manage or cancel in Settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://logicbrain.ai/privacy

Screenshots

Wastewater Operator Prep4 screens
LogicBrain3 screens

Verdict

The call

Wastewater Operator Prep and LogicBrain 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. Wastewater Operator Prep sells 2 in-app purchases, starting at $5.99 per 7 days and LogicBrain sells 3 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Wastewater Operator Prep ships an update every 3 weeks, LogicBrain every 5 weeks. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

ScorecardNo meaningful differences
Wastewater Operator Prep versus LogicBrain: the parameters behind the verdict, then further details
ParameterWastewater Operator PrepLogicBrain
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size3 MB9 MB
Age rating4+4+
DeveloperHermes Inteligencia Digital LtdaPhu Ho

In-app purchases

2 purchases

Wastewater Operator Prep

Subscriptions2
  • Wastewater Prep Weekly$5.997 Days
  • Wastewater Prep Monthly3 Days trial$14.991 Month
3 purchases

LogicBrain

Subscriptions2
  • LogicBrain Pro Monthly$12.991 Month
  • LogicBrain Pro Annual7 Days trial$59.991 Year
One-time1
  • LogicBrain Pro Lifetime$149.99

Questions

Is Wastewater Operator Prep free?
Wastewater Operator Prep is free to download, with in-app purchases available.
Is LogicBrain free?
LogicBrain is free to download, with in-app purchases available.
Do Wastewater Operator Prep or LogicBrain have ads?
Neither Wastewater Operator Prep nor LogicBrain shows ads.
Which is updated more often, Wastewater Operator Prep or LogicBrain?
Wastewater Operator Prep ships an update every 3 weeks, and LogicBrain every 5 weeks. Most recently, Wastewater Operator Prep was updated on October 12, 2026 and LogicBrain on October 16, 2026.

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