Comparison

IMTHome vs CEM Exam Study Guide

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

Head to head
About

IMTHome

Features
Read full description

IMTHome is IMTLazarus's parental control app for families. It allows parents to monitor and manage how their children use their school devices at home, ensuring a safe and balanced digital environment. MAIN FEATURES • Web browsing filters • YouTube control • App filter • Device lock • Activity reports • Device location • Screen time • Custom filters IMTHome works in coordination with the school and requires prior family consent in compliance with GDPR. Access credentials are provided by the school.

About

CEM Exam Study Guide

Features
Read full description

Prepare for the AEE CEM (Certified Energy Manager) exam with a focused, comprehensive study companion aligned to the current Body of Knowledge 2.0. CEM Study Guide organizes everything into the fourteen exam subject sections — Energy & Sustainability Policies, Codes & Standards; Energy Rates, Tariffs & Supply Options; Energy Audits & Instrumentation; Energy Accounting & Economics; Electrical Power Systems & Motors; Lighting Systems; HVAC Systems & Building Envelope; Building Automation, Controls & AI; Energy Storage Systems; Boiler & Steam Systems; Distributed Generation & Renewables; Industrial Systems; Operations, Maintenance & Commissioning; and Energy Savings Performance Contracting & M&V — so you study exactly what the exam tests. WHAT'S INSIDE • 160+ flashcards — tap to flip, tagged by subject section • 125+ multiple-choice practice questions with instant feedback and fully worked solutions • 110+ glossary terms and key acronyms, fully searchable • 40+ energy engineering formulas with variables and usage notes TOPICS COVERED • Policies & codes: decarbonization, GHG accounting, ASHRAE 90.1/62.1/211, IECC, ISO 50001, LEED, ENERGY STAR • Rates & tariffs: rate structures, demand charges, ratchets, procurement, demand-side management • Audits: ASHRAE Level 1/2/3 audits, instrumentation, EUI/ECI, load factor • Economics: time value of money, NPV, IRR, SIR, life-cycle cost, simple payback, depreciation • Electrical: power factor correction, three-phase power, motors, VFDs, affinity laws • Lighting: efficacy, footcandles, zonal cavity method, LED retrofits, lighting controls • HVAC & envelope: COP/EER/kW-per-ton, chillers, heat pumps, psychrometrics, R- and U-values, degree days • Controls & BAS: PID control, DDC, BACnet, optimum start/stop, energy management systems • Energy storage, boilers & steam, CHP & renewables, compressed air, commissioning, ESPC and IPMVP M&V Start free with a preview of every section. Unlock Premium with a monthly subscription or a one-time lifetime purchase — both include the entire question bank, glossary, and formula library. This app is an independent study aid and is not affiliated with, endorsed by, or sponsored by the Association of Energy Engineers (AEE). CEM® and Certified Energy Manager® are registered trademarks of the Association of Energy Engineers. Always verify current exam content at aeecenter.org. SUBSCRIPTION & PURCHASE OPTIONS • Monthly subscription — $2.99 per month, auto-renews monthly • Lifetime unlock — $19.99 one-time purchase Both unlock identical content. Subscriptions are billed to your Apple ID and renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel any time in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.dmpenterprisellc.com/privacy-policy

Screenshots

IMTHome3 screens
CEM Exam Study Guide4 screens

Verdict

The call

The clearest difference is update cadence: IMTHome at every 2 days against CEM Exam Study Guide's every 3 months. CEM Exam Study Guide's advantage is iOS requirement (17.0 vs 26.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

IMTHome ships an update every 2 days, CEM Exam Study Guide every 3 months. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 4 level
IMTHome versus CEM Exam Study Guide: the parameters behind the verdict, then further details
ParameterIMTHomeCEM Exam Study Guide
PriceFreeFree
Update frequencyEvery 2 days — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size1 MB2 MB
Age rating4+4+
DeveloperIMTCloudDMP ENTERPRISE LLC

In-app purchases

None

IMTHome

No in-app purchases

None

CEM Exam Study Guide

No in-app purchases

Questions

Is IMTHome free?
IMTHome is free to download, with no in-app purchases.
Is CEM Exam Study Guide free?
CEM Exam Study Guide is free to download, with no in-app purchases.
Do IMTHome or CEM Exam Study Guide have ads?
Neither IMTHome nor CEM Exam Study Guide shows ads.
Which is updated more often, IMTHome or CEM Exam Study Guide?
IMTHome ships an update every 2 days, and CEM Exam Study Guide every 3 months. Most recently, IMTHome was updated on October 31, 2026 and CEM Exam Study Guide on November 6, 2026.

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