Pool Operator vs Prepared Scout
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pool Operator
This app helps pool operators calculate precise chemical dosages for water balance and understand water chemistry. It also includes a daily operations log, turnover rate calculator, and extensive practice questions and mock exams for CPO certification.
- Precise chemical dosage calculation
- Langelier Saturation Index analysis
- Turnover Rate Calculator
- Daily Pool Operations Log with CSV export
- 700+ CPO practice questions with explanations
- Full mock CPO exam simulation
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Know exactly how much chlorine to add. The Pool Chemical Balancer takes your current water test results — pH, free chlorine, alkalinity, cyanuric acid, calcium hardness — and tells you the exact amount of each chemical to add for your pool size. Liquid chlorine, cal-hypo, dichlor, trichlor, muriatic acid, soda ash, sodium bicarb. Exact ounces and pounds. No more guessing, no more overdosing, no more chasing chemistry all day. Langelier Saturation Index built in. Enter your numbers, see instantly if your water is balanced, corrosive, or scaling. Green means balanced. Red means fix it now. Turnover Rate Calculator shows how long your filtration system takes to cycle the entire pool volume. Input pool gallons and pump flow rate. See if you meet the 6-hour health code requirement or if you need to investigate flow issues. Daily Pool Operations Log replaces your paper logbook. Tap to enter water test results, bather load, chemicals added, weather conditions. History stored for 6 months — matching health department record retention requirements. Export to CSV for inspections. This is the tool you open every morning before the pool opens. 700+ practice questions covering everything on the CPO exam: water chemistry and balance (pH, chlorine, alkalinity, CYA, calcium hardness, LSI), disinfection and sanitization (breakpoint chlorination, shocking, fecal incident response), filtration systems (sand, DE, cartridge, backwashing), pool and spa calculations (volume, dosage, turnover, flow rate), health and safety regulations (record keeping, pool closures, bather load), mechanical systems (pumps, heaters, valves, skimmers), water quality testing (DPD vs OTO, testing frequency), facility operations (opening/closing, winterizing, emergency procedures), spa and hot tub operations (temperature limits, drain frequency, higher sanitizer levels), codes and standards (VGB Act, ADA, barrier requirements). Every question includes a detailed explanation. Calculation questions show step-by-step math so you learn the method, not just the answer. Full mock exam: 50 questions, 2-hour timer, open-book format matching the real CPO exam. Category-weighted. Pass/fail result with breakdown showing exactly which topics need more work. PRO — LIFETIME ACCESS: Unlimited questions, full chemical balancer, daily log with export, turnover calculator, mock exam, smart weak-area practice, Pass Promise coverage. No subscriptions. Download now. Pass your CPO certification the first time. Privacy Policy: https://www.voltexam.com/privacy Terms & Conditions: https://www.voltexam.com/terms Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Prepared Scout
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Prepared Scout is built for young people working through an outdoor programme, and for the leaders and parents helping them do it. Badge preparation, rank practice, and the record of what you have actually done, all offline. ADVANCEMENT Five stages of practice checkpoints that link straight into the guide, so a scout can go and study the skill they are stuck on. Alongside them are the three records every scout is asked for and never has to hand: service hours, nights camped, and months served in a role. Log them as you go, with eight patrol positions tracked by tenure. BADGE PREP Work through badge style requirement checklists at your own pace, with progress saved and each requirement linked to the section of the guide that helps you prepare for it. THE SKILLS GUIDE Eleven chapters written for a patrol: survival basics, first aid for your patrol and when to get an adult, camping with your group, laying out a patrol site and running a duty roster, navigation, fire and cooking, hiking, knots and lashings, water, reading weather and keeping a nature log, outdoor ethics, leading your peers, planning a service project, and scout skills with woods tools. STUDY GUIDE Flashcards and fill in the blank practice across every topic, including patrol leadership and what makes service actually count. IDENTIFY WHAT YOU FIND On device identification for plants, insects, fungi and lichen, animals, clouds, and rocks, plus offline map packs and a compass. Works fully offline. No account, no ads, no subscription. One optional purchase unlocks the full guide. Requirement text in this app is original practice material written for study and preparation. It is not any organization's official requirements, and real sign off happens with your own leader. Not affiliated with, endorsed by, or sponsored by Scouting America, Girl Scouts of the USA, or any scouting organization.
Screenshots
Verdict
The clearest difference is update cadence: Prepared Scout at every 9 days against Pool Operator's every 5 months. On price, ads, in-app purchases and device support 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
Both are free to download. Pool Operator sells 2 in-app purchases, starting at $9.99 per month and Prepared Scout sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Pool Operator ships an update every 5 months, Prepared Scout every 9 days. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.
| Parameter | Pool Operator | Prepared Scout |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 5 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 7 MB | 153 MB |
| Age rating | 4+ | 4+ |
| Developer | Deeun Inc. | SEDX LLC |
In-app purchases
Pool Operator
- Pool Operator Pro Monthly3 Days trial$9.991 Month
- Pool Operator Pro Lifetime$24.99
Prepared Scout
- Study Tools$0.99
Questions
Is Pool Operator free?
Is Prepared Scout free?
Do Pool Operator or Prepared Scout have ads?
Which is updated more often, Pool Operator or Prepared Scout?
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