Comparison

MyGrowth vs HVAC 3D Design Learning Studio

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

Head to head
About

MyGrowth

This app offers bite-sized daily lessons in various subjects that can be read or listened to. It aims to replace mindless scrolling with engaging microlearning to boost focus, memory, and self-improvement.

Highlights
  • Bite-sized daily lessons
  • Read or listen options
  • Short video lessons
  • Fun quizzes
  • Streak and achievement tracking
  • Fresh topics
Read full description

MyGrowth – your go-to app for microlearning! Tired of mindlessly scrolling? Time to end doomscrolling and turn those spare moments into real growth. MyGrowth gives you quick, fun microlearning lessons you can read or listen to anywhere. No heavy textbooks, no boring lectures — just bite-sized learning that fits your day. Whether you’re into Biology, Anatomy, History, Math, Art, Communication, or other themes, our microlearning lessons are built to keep you curious and help your knowledge stick. Why you’ll love MyGrowth: - Short daily bite-sized lessons — easy to start, hard to quit - Read or listen — pick your vibe - Learn easily with short videos every day - Fun quizzes to lock in your knowledge - Track your streaks and achievements for visible self-growth - Fresh topics for expanding your general knowledge Perfect for anyone who wants learning apps for adults that work. Just a few minutes a day can boost your focus, improve your memory, and help with self-improvement. Instead of wasting another hour online, use MyGrowth to stop doomscrolling and fill your brain with something new. We believe microlearning is the easiest way to make learning a habit. Each microlearning lesson is designed for quick wins, but also for long-term self-growth. And with flexible formats, learning becomes part of your day without effort. Download MyGrowth today — and make every scroll count toward your knowledge and your goals. SUBSCRIPTION The app offers the following subscription plans: a monthly plan at $24.99 with a 7-day free trial, and a yearly plan at $69.99. After downloading the app, you can select the subscription option that best fits your goals. Your MyGrowth subscription automatically renews at the end of each period (monthly, yearly, or according to the selected plan) unless it is canceled. If you choose to cancel, you will continue to have full access to all features until the end of your current period. When a free trial is activated, the subscription fee shown on the payment screen will be charged automatically for the selected period unless the trial is canceled at least 24 hours before it ends. Please note that removing the app from your device does not cancel your subscription. To manage or cancel your subscription, go to Settings → [your name] → Subscription → Select MyGrowth, then tap Cancel. Privacy Policy: https://quiz.mygrowth.one/privacy-policy Terms of Service: https://quiz.mygrowth.one/terms-of-use

About

HVAC 3D Design Learning Studio

Features
Read full description

HVAC3D is a professional-grade HVAC reference and learning tool built around an interactive 3D model of a fully engineered 3-story commercial building. Tap any component — AHU, chiller, VAV box, DDC controller — to see its specs, code references, and system connections in real time. Version 3.0 adds six major tools: Duct Sizing Calculator — SMACNA equal-friction and velocity method sizing for round and rectangular ducts, with live ASHRAE velocity and friction limit checking. ASHRAE 62.1 Ventilation Calculator — Multi-zone Ventilation Rate Procedure (VRP) with space-type lookup from Table 6-1, zone-by-zone breathing zone OA, and system outdoor air (Vot) output. Hydronic Pipe Sizing — Darcy-Weisbach pipe sizing for chilled water, hot water, and condenser water. Input GPM, tons, or MBH and get a recommended pipe size with Reynolds number and friction factor. Sequence of Operations Library — Six complete BAS control sequences: Economizer, DCV, Supply Air Temperature Reset, Morning Warm-Up, Chiller Staging, and VAV Box Control — all per ASHRAE Guideline 36. A2L Refrigerant Safety Guide — 2025 installation requirements for R-454B and R-32 including detector placement, machinery room ventilation, charge limits, and EPA AIM Act compliance per ASHRAE 15-2022. PDF Export — Share the Equipment Schedule, ASHRAE 180 Inspection Checklist, and Calc Sheets as formatted PDFs via AirDrop, email, or Files. The full feature set includes: 3D interactive building model • Floor-by-floor and system filtering • Component info panels with code citations • Learning Hub (Quiz, Glossary, Fault Simulator, Load Calculator, Guided Tour, Violations, Inspection Checklist) • Psychrometric Chart (SI + IP) • System Design Wizard • Refrigerant Phase-Out Guide • Floor Plans • Riser Diagrams • Equipment Schedule • Operation Matrix • Gallery of 49 professional HVAC diagrams Standards covered: ASHRAE 62.1 / 90.1 / 15 / 180 / Guideline 36 • IMC • SMACNA • ACCA Manual J • NFPA 90A / 92 / 96 • EPA AIM Act For educational and reference use only. All system designs must be reviewed and stamped by a licensed mechanical engineer before implementation. ASHRAE, SMACNA, NFPA, ACCA, ANSI, ASME, IMC, IBC, UL, and EPA are trademarks or registered trademarks of their respective organizations. HVAC3D is an independent educational application and is not affiliated with, endorsed by, or sponsored by any of these organizations. All standard references are cited for informational purposes only and do not constitute legal or engineering advice.

Screenshots

MyGrowth4 screens
HVAC 3D Design Learning Studio4 screens

Verdict

The call

The clearest difference is price: MyGrowth at Free against HVAC 3D Design Learning Studio's $9.99. HVAC 3D Design Learning Studio's advantage is in-app purchases (none vs 3) and ads (none vs shown). On update cadence, device support and iOS requirement 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

MyGrowth is free to download; HVAC 3D Design Learning Studio costs $9.99 up front. MyGrowth sells 3 in-app purchases, starting at $24.99 per month. HVAC 3D Design Learning Studio asks for nothing beyond the download.

UpkeepUpdate frequency

MyGrowth ships an update every 10 days, HVAC 3D Design Learning Studio every 3 weeks. The most recent releases landed on November 8, 2026 and November 9, 2026 respectively.

Scorecard3 real differences · 7 level
MyGrowth versus HVAC 3D Design Learning Studio: the parameters behind the verdict, then further details
ParameterMyGrowthHVAC 3D Design Learning Studio
PriceFree — better$9.99
Rating4.5 (2.5K ratings) — better—
Positive reviews21.1% of reviews—
Number of ratings2.5K — better—
Update frequencyEvery 10 days — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad — better
Requires iOS1716.0 — better
Further details — not scored
Size140 MB207 MB
Age rating4+4+
DeveloperEXTRAMILE LIMITEDYuhsiu Lai

Bugs and requests

MyGrowth

Reported bugs

1 issue
  • No art quiz as advertised

Requested features

2 requests
  • Ability to zoom in on small text
  • Addition of art history content

HVAC 3D Design Learning Studio

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

MyGrowth

Subscriptions3
  • Monthly Premium Access3 Days trial$24.991 Month
  • Monthly Premium Access7 Days trial$24.991 Month
  • Yearly Premium Access$69.991 Year
None

HVAC 3D Design Learning Studio

No in-app purchases

Questions

Is MyGrowth free?
MyGrowth is free to download, with in-app purchases available.
Is HVAC 3D Design Learning Studio free?
HVAC 3D Design Learning Studio costs $9.99, with no in-app purchases.
Do MyGrowth or HVAC 3D Design Learning Studio have ads?
MyGrowth shows ads; HVAC 3D Design Learning Studio does not.
Which is updated more often, MyGrowth or HVAC 3D Design Learning Studio?
MyGrowth ships an update every 10 days, and HVAC 3D Design Learning Studio every 3 weeks. Most recently, MyGrowth was updated on November 8, 2026 and HVAC 3D Design Learning Studio on November 9, 2026.

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