Comparison

Sound Meter vs HotCar pro

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

Head to head
About

Sound Meter

Features
Read full description

Turn your iPhone into a professional-grade sound level meter. dBMeter measures your environment in real time with precision — from a quiet library to a roaring concert. Whether you're protecting your hearing at work, checking noise levels at home, or monitoring a live event, dBMeter gives you the data you need. REAL-TIME MEASUREMENT â€Ē Live decibel (dB) and frequency (Hz) readings â€Ē Color-coded sound level indicator with environment context â€Ē Visual meter bar with instant response â€Ē Tap to switch between dB and Hz display HEARING PROTECTION â€Ē Built-in Dosimeter tracks your daily noise dose â€Ē NIOSH and OSHA standards with exchange rate comparison â€Ē Time-Weighted Average (TWA) and projected dose â€Ē 7-day exposure history â€Ē Threshold alerts — get notified the moment sound exceeds your limit RECORD & ANALYZE â€Ē Save unlimited sessions with full waveform charts â€Ē Combined dB + frequency timeline â€Ē GPS location tagging — remember exactly where you measured â€Ē Add notes to any recording â€Ē Export as CSV or PDF report CAMERA MODE â€Ē Capture photos and videos with live dB overlay â€Ē Perfect for documenting noise complaints or job site conditions BACKGROUND MONITORING â€Ē Keep measuring even when the app is in the background â€Ē Threshold alerts fire even with the screen off PRIVACY FIRST â€Ē All data stays on your device — nothing is sent to servers â€Ē No account required PROFESSIONAL TOOLS â€Ē Calibration offset for accurate readings with external microphones â€Ē Haptic feedback on loud peaks Note: Smartphone microphones have an accuracy of approximately Âą2–5 dB. dBMeter is designed as a practical monitoring tool and should not be used as a substitute for certified measurement equipment in regulated environments. ................ Terms & Conditions: https://dikr.org/terms/ EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://dikr.org/privacy-policy/

About

HotCar pro

Features
Read full description

HotCar Pro- The Ultimate Cold Weather Warm-Up Timer Never guess how long to warm up your car again. HotCar uses a scientific algorithm to calculate the optimal warm-up time based on real-time weather, your vehicle type, engine type, and whether you have a block heater plugged in. Key Features: SMART WARM-UP CALCULATION - Scientific algorithm considers temperature, vehicle type, and engine type - Automatic adjustments for block heater usage (50% time reduction when plugged in) - Supports compact cars, sedans, SUVs, and trucks - Works with gasoline, diesel, hybrid, and electric vehicles REAL-TIME WEATHER INTEGRATION - Automatic location detection for accurate temperature data - Current temperature and tomorrow morning forecast - Powered by Open-Meteo weather API TESLA REMOTE START - Direct integration with Tesla vehicles - Start climate control remotely from the app - Real-time monitoring of cabin temperature - Automatic shut-off when warm-up completes COUNT DOWN TIMER - Visual countdown with progress tracking - Local notifications when warm-up is complete - Background timer support - Haptic feedback for glove-friendly operation FUEL SAVINGS & STATISTICS - Track total warm-up sessions - Calculate money saved on fuel - Monitor CO2 emissions reduced - View warm-up trends over time MULTI-VEHICLE SUPPORT - Manage multiple vehicles in your garage - Set primary vehicle for quick access - Configure each vehicle with specific settings - VIN decoder for easy vehicle setup WIDGETS & LIVE ACTIVITIES - Home screen widgets for quick access - Lock screen live activities - Temperature and timer status at a glance - No need to open the app PRIVACY-FIRST DESIGN - All data stored locally on your device - No cloud sync, no tracking - No analytics or third-party SDKs - Complete user privacy guaranteed FAIR PRICING - One-time purchase only - No subscriptions, no recurring fees - No ads, no in-app purchases - All features included forever COLD WEATHER OPTIMIZED - Dark mode first for better visibility - Large touch targets for glove operation - High contrast for snow glare conditions - Large, easy-to-read fonts PERFECT FOR: - Drivers in cold climates (Northern USA, Canada, Nordic countries) - Tesla owners wanting remote climate control - Fleet managers tracking multiple vehicles - Anyone wanting to save fuel and reduce emissions - People who value privacy and fair pricing WHY HOTCAR IS BETTER: - Works with ALL vehicle brands, not just one OEM - Scientific calculations, not guesswork - Privacy-focused with no data collection - One-time purchase, no subscription fatigue - Cold weather optimized UI - Widgets and live activities included Download HotCar Pro today and make winter driving easier, more efficient, and better for the environment. Compatible with iOS 17.0 and later.

Screenshots

Sound Meter4 screens
HotCar pro4 screens

Verdict

The call

The clearest difference is price: Sound Meter at Free against HotCar pro's $2.99. HotCar pro's advantage is in-app purchases (none vs 3). On ads, 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

Sound Meter is free to download; HotCar pro costs $2.99 up front. Sound Meter sells 3 in-app purchases, starting at $1.99 per 7 days. HotCar pro asks for nothing beyond the download.

Scorecard2 real differences · 4 level
Sound Meter versus HotCar pro: the parameters behind the verdict, then further details
ParameterSound MeterHotCar pro
PriceFree — better$2.99
Update frequencyEvery 5 months—
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better17.0
Further details — not scored
Size6 MB3 MB
Age rating4+9+
DeveloperCHARAFA BOUKHALFAčīš å‘Ļ

In-app purchases

3 purchases

Sound Meter

Subscriptions3
  • Weekly PRO3 Days trial$1.997 Days
  • Monthly PRO3 Days trial$2.991 Month
  • Yearly PRO$14.991 Year
None

HotCar pro

No in-app purchases

Questions

Is Sound Meter free?
Sound Meter is free to download, with in-app purchases available.
Is HotCar pro free?
HotCar pro costs $2.99, with no in-app purchases.
Do Sound Meter or HotCar pro have ads?
Neither Sound Meter nor HotCar pro shows ads.

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