Comparison

HVACsim vs Untilt

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

Head to head
About

HVACsim

This app offers interactive learning and real-world data analysis to help HVAC professionals diagnose and troubleshoot systems. It provides personalized training plans, skill assessments, and team management tools for contractors.

Highlights
  • Technical Knowledge Evaluator
  • Individualized Learning Plans
  • Real-World Data Analysis
  • Team Management Tools
  • Continuous Learning Library
Features
Read full description

Master HVAC Skills with the HVAC Simulator App! The HVAC Simulator app revolutionizes training by combining real-world data analysis with interactive learning. Designed for technicians, contractors, and educators, this app helps you build confidence in diagnosing and troubleshooting HVAC systems efficiently. Key Features Technical Knowledge Evaluator Assess your HVAC skills through realistic scenarios. Identify gaps in understanding and get targeted recommendations. Individualized Learning Plans (ILP) Personalized training paths tailored to your specific needs. Evolve and reassess as you progress, ensuring continuous improvement. Real-World Practice Analyze system data like electrical readings, pressures, and temperatures. Simulate real-life scenarios in a risk-free environment. Team Management Tools (for Contractors) Assess and track your team’s technical knowledge. Create custom in-house training programs based on performance data. Continuous Learning Stay updated with new HVAC technologies and techniques. Access a library of courses covering both basics and advanced topics. Why Choose HVAC Simulator? Build diagnostic accuracy with data-driven learning. Strengthen critical thinking and troubleshooting skills. Reduce callbacks with more efficient team training. Interactive and engaging simulations for practical learning. For Technicians: Boost your confidence and master HVAC diagnostics through hands-on scenarios. For Contractors: Empower your team with tools to create stronger, more skilled technicians. For Educators: Enhance classroom learning with real-world-focused training resources. Download HVAC Simulator Now and Start Your Journey to HVAC Mastery! Transform the way you learn, train, and excel in the HVAC industry today!

About

Untilt

This app helps you block access to sports betting apps and websites on your iPhone. It utilizes Apple Screen Time to enforce timed restrictions, with options for flexible blocking durations and enhanced security features to prevent early termination.

Highlights
  • Blocks 50 betting apps and 50 websites
  • Timed blocking durations
  • Pro version for advanced blocking
  • Prevents app removal during blocks
  • Private by design, no account needed
  • Ad-free experience
Read full description

Block betting apps on your iPhone. Untilt blocks DraftKings, FanDuel, Kalshi and 47 more betting and prediction-market apps, plus 50 sites, until the time you choose. Only betting apps and sites are locked. Scores, streams and texts still work. HOW IT WORKS • Choose how long: Tonight (until 3 AM), a Week, a Month, or Always. • Press and hold Hold to close. Betting apps and sites stay locked until then. • Close it again whenever you need it, or add time to a running lock. • During your free week, locks run up to its end. A Month or Always lock takes Untilt Pro. 7 DAYS FREE, THEN ONE PAYMENT Your first 7 days are free, with no card and nothing to cancel. They start with your first lock, and Untilt shows when they end. After that, new locks and added time take Untilt Pro: one payment, no subscription. It costs less if you get it during your free week, and the app shows both prices before you buy. A lock you started keeps running. ENDING EARLY • Locks of 24 hours or less can't end early. • Longer locks, and locks with no end date, take a 24-hour wait to end early. Betting stays blocked while you wait. WHAT GETS BLOCKED 50 apps and 50 sites: sportsbooks, pick'em and fantasy, prediction markets, offshore and sweepstakes books, casino and poker, and horse racing. That includes DraftKings, FanDuel, Kalshi, PrizePicks, Underdog, BetMGM, Caesars, Fanatics, theScore Bet and Polymarket. See the full list in the app before you pay. Only listed apps and sites are blocked, and adding new ones takes an app update. PRIVATE BY DESIGN • No account. No VPN. • Built on Apple Screen Time. Untilt can't see your screen, messages, bets or browsing. • App analytics can be turned off in Settings. KNOW WHAT TO EXPECT • Needs iOS 17 or later and Screen Time access, asked once at your first lock. • Covers this iPhone only. • Safari Private Browsing is unavailable while a lock is on. • Every lock starts with your hold. Paying never starts one, and Untilt never starts one on its own. • You stay in control of your iPhone: deleting Untilt, or turning off its Screen Time access in iOS Settings, ends a lock. NEED TO TALK TO SOMEONE? In the U.S., call or text the National Problem Gambling Helpline at 1-800-MY-RESET (1-800-697-3738). Settings links to it, to self-exclusion options for your state, and to written emails asking sportsbooks to close your accounts, free for everyone. EXISTING SUBSCRIBERS Untilt Pro subscriptions bought before version 1.2.0 keep working and renew until canceled in your App Store account settings. DraftKings, FanDuel, Kalshi and the other names above are trademarks of their owners. Untilt isn't affiliated with or endorsed by them. Terms of Service: https://tryuntilt.com/terms Apple's standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://tryuntilt.com/privacy

Screenshots

HVACsim4 screens
Untilt4 screens

Verdict

The call

The clearest difference is rating: Untilt at 5.0 against HVACsim's 2.6. Untilt also leads on update cadence (every 5 days vs every 2 months). HVACsim's advantage is iOS requirement (13.4 vs 17.0). On price, ratings volume, ads and in-app purchases 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. HVACsim sells 1 one-off in-app purchase and Untilt sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Untilt holds the better App Store score, 5.0 against 2.6. Both are backed by a comparable volume of ratings — 10 and 4 respectively.

UpkeepUpdate frequency

HVACsim ships an update every 2 months, Untilt every 5 days. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 6 level
HVACsim versus Untilt: the parameters behind the verdict, then further details
ParameterHVACsimUntilt
PriceFreeFree
Rating2.6 (10 ratings)5.0 (4 ratings) — better
Number of ratings10 — better4
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPod — betteriPhone
Requires iOS13.4 — better17.0
Further details — not scored
Size20 MB21 MB
Age rating4+17+
DeveloperNauman Innovation Group LLCEarlyCo, Inc.

Customer experience

HVACsim

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%

Untilt

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

HVACsim

One-time1
  • Full Access$29.99
2 purchases

Untilt

Subscriptions2
  • Untilt Pro$9.991 Month
  • Untilt Pro$49.991 Year

Questions

Is HVACsim free?
HVACsim is free to download, with in-app purchases available.
Is Untilt free?
Untilt is free to download, with in-app purchases available.
Which has better reviews, HVACsim or Untilt?
Untilt is rated higher. HVACsim averages 2.6 out of 5 from 10 ratings, while Untilt averages 5.0 from 4 ratings.
Do HVACsim or Untilt have ads?
Neither HVACsim nor Untilt shows ads.
Which is updated more often, HVACsim or Untilt?
HVACsim ships an update every 2 months, and Untilt every 5 days. Most recently, HVACsim was updated on October 7, 2026 and Untilt on October 15, 2026.

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