Comparison

Molnus vs Decibel Meter Ultra

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

Head to head
About

Molnus

Control and manage compatible cameras and their associated SIM cards. Receive instant notifications for events like image uploads and battery status, with secure cloud storage for your photos.

Highlights
  • Remote camera settings control
  • MolnusSIM card management
  • Event notifications (image upload, battery)
  • Secure cloud storage
  • Wildlife detection
  • Photo gallery
Features
Read full description

Manage all your Molnus-compatible cameras with full control over settings as well as managing your MolnusSIM Simcards. Get notifications for camera events like image-upload and battery-status. Features: - Free 30 day storage. - Share cameras with friends, either in app or via e-mail. - Control all your camera settings directly from Molnus. - Control your camera from browser or app. - Manage MolnusSIM Sim cards, keep track of all data used by your cameras, manage sim card and the cameras they're used in in one and the same place. - Secure upload and cloud storage. - AI powered wildlife Push notification to both browser and app. - Photo gallery for easy management of photos. - Get push-notifications when pictures are uploaded. - Take photos direct browser or app with swift delivery. - Register new cameras from browser or app. - Wildlife detection, Molnus will help you detect and identify wildlife captured in your images and video.

About

Decibel Meter Ultra

Measure, record, and analyze sound levels in your environment. This app offers precision metering, noise elimination tools, hearing protection features, and home audio calibration. It provides detailed reports and can be used with device microphones or external ones.

Highlights
  • Precision sound level metering
  • Noise logging and reporting
  • Hearing protection dosimeter
  • Fractional octave band analysis
  • Real-time analyzer
  • External microphone support
Features
Read full description

Measure, record and track sound levels in your environment with Decibel Meter Ultra, the all-in-one sound level meter, dosimeter and real-time analyzer. From monitoring sound levels at home, noise levels in the workplace, to calibrating the speakers of your hi-fi, Decibel Meter Ultra makes it easy to get the information that you need. Precision Metering For Sound: Get accurate sound level readings using industry standard measurement methodologies, selectable A, C and Z frequency weighting curves, fast and slow time-weightings, plus concurrent peak level measurement. Choose from the built-in microphones on your device or connect an external microphone* for an even broader dynamic range. Eliminate Nuisance Noise: Getting proof is as simple as tapping a button. Catch and log problem noise as it occurs. Overlay live video with sound levels, or create comprehensive acoustic analysis reports that you can share easily via PDF. Visualize sound levels over time and gather the evidence that you need to take decisive action. Safeguard Your Hearing: Stay aware of noise levels in the workplace and compare against industry-mandated safe levels using the built-in dosimeter. Select from default measurement profiles based on published recommendations from NIOSH and OSHA, or if you’re working against a different specification, create your own. Elevate Your Home Audio: Get the best from your home audio system with powerful fractional octave band analysis. Fine-tune your equipment using up to twelfth octave-band resolution, variable time weightings and peak level indicators so that you can enjoy music and movies like never before. Download now and take advantage of our free plan which includes our built-in metering profile and up to two-minute recording durations. Or choose one of our PRO plans and gain access to everything the app has to offer, including our full suite of professional metering options, custom meter profiles, analysis charts, PDF reports, background recording, unlimited recording durations and more. *External microphones require calibration against a reference sound level source The data provided by Decibel Meter Ultra is for educational and informational purposes only. Please refer to the disclaimer in the Terms of Use for further information. Terms of Use: https://decibelmeterultra.com/terms Privacy Policy: https://decibelmeterultra.com/privacy

Screenshots

Molnus4 screens
Decibel Meter Ultra4 screens

Verdict

The call

The clearest difference is review sentiment: Decibel Meter Ultra at 43% against Molnus's 13%. Molnus's advantage is monetization model (free vs free with in-app purchases) and device support (3 vs 1). On price, update cadence, 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. Molnus sells 3 one-off in-app purchases and Decibel Meter Ultra sells 4 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Molnus ships an update fortnightly, Decibel Meter Ultra every 10 days. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

Scorecard4 real differences · 6 level
Molnus versus Decibel Meter Ultra: the parameters behind the verdict, then further details
ParameterMolnusDecibel Meter Ultra
PriceFreeFree
Rating—4.6 (2.6K ratings) — better
Positive reviews12.5% of reviews43.3% of reviews — better
Number of ratings—2.6K — better
Update frequencyFortnightlyEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better18.6
Further details — not scored
Size12 MB92 MB
Age rating4++12
DeveloperHJL IT & DevelopmentUltrafine

Customer experience

Molnus

Written reviews8 reviews
Positive12.5%
Neutral0.0%
Negative87.5%

Decibel Meter Ultra

All ratings2,557 ratings
Positive91.2%
Neutral3.1%
Negative5.7%
Written reviews104 reviews
Positive43.3%
Neutral1.9%
Negative54.8%

Bugs and requests

Molnus

Not enough reviews yet to summarise bugs or requests.

Decibel Meter Ultra

Reported bugs

2 issues
  • Subscription charges continue after cancellation
  • Subscription cancellation page doesn't load

Requested features

2 requests
  • Lower subscription pricing
  • Improve subscription cancellation process

In-app purchases

3 purchases

Molnus

One-time3
  • 100 Molnus Credits$3.99
  • 200 Molnus Credits$7.99
  • 500 Molnus Credits$19.99
4 purchases

Decibel Meter Ultra

Subscriptions4
  • PRO Access7 Days trial2 variants$7.997 Days
  • PRO Access2 variants$11.991 Month
  • PRO Access3 Days trial$39.991 Year
Show 1 more
  • PRO Access2 variants$39.991 Year

Questions

Is Molnus free?
Molnus is free to download, with in-app purchases available.
Is Decibel Meter Ultra free?
Decibel Meter Ultra is free to download, with in-app purchases available.
Do Molnus or Decibel Meter Ultra have ads?
Neither Molnus nor Decibel Meter Ultra shows ads.
Which is updated more often, Molnus or Decibel Meter Ultra?
Molnus ships an update fortnightly, and Decibel Meter Ultra every 10 days. Most recently, Molnus was updated on November 2, 2026 and Decibel Meter Ultra on November 7, 2026.

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