Decibel Meter vs Fish Helper Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Decibel Meter
Easily measure sound levels with this accurate and intuitive tool. It displays current, maximum, and average decibel values, along with a graphical overview for quick comprehension. This utility is completely free to use.
- Simple and easy to use
- Quick and accurate dB measuring
- All-in-one meter
- Maximum, current, and average values
- Gauge meter display
- Values displayed in graph
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Understand the sound levels around you with a clear live meter, responsive graph, and session recording. FREE FEATURES • Live estimated sound-level readings • Current, minimum, average, and maximum values • Real-time history graph • Manual calibration offset • Recording playback PREMIUM FEATURES • Ad-free measuring • Advanced response-time options • Additional frequency modes • Automatic recording saves • Saved measurement history Decibel Meter uses your device microphone only while measuring. Phone microphone readings are estimates and are not a substitute for a calibrated professional sound-level meter or workplace safety equipment. Subscription pricing and trial availability are shown before purchase and may vary by region. Subscriptions renew automatically unless cancelled in your App Store account settings. Terms of Use: https://www.devnex.nl/terms Privacy Policy: https://www.devnex.nl/privacy-policy.html
Fish Helper Pro
This app enhances universal fish detectors using XDX encoding. It displays underwater curves, sonar maps, fish schools, and water temperature. Users can adjust detection sensitivity and display settings for a better fishing experience.
- XDX encoding support
- Underwater curve display
- Original and disk sonar maps
- Fish school detection
- Water temperature display
- Adjustable detection sensitivity
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This is an enhanced general fish detector APP, which is suitable for all fish detectors using XDX encoding. It can display the underwater curve, original sonar map, disk sonar map, large and small schools of fish, water plants, water temperature and other information related to fish detectors. It can set detection sensitivity, display background, refresh speed and other parameters. Friendly interface and convenient operation, it is a good helper for fishing enthusiasts.
Screenshots
Verdict
The clearest difference is review sentiment: Fish Helper Pro at 100% against Decibel Meter's 57%. Fish Helper Pro also leads on in-app purchases (none vs 4) and ads (none vs shown). Decibel Meter's advantage is rating (4.6 vs 1.0) and update cadence (every 6 weeks vs every 37 months). On price 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
Both are free to download. Decibel Meter sells 4 in-app purchases, starting at $1.99 per 7 days. Fish Helper Pro asks for nothing beyond the download.
Decibel Meter holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Decibel Meter has 715 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 57% of Decibel Meter's written reviews are positive against 100% of Fish Helper Pro's, so the app with the better star average is not the one people write more warmly about.
Decibel Meter ships an update every 6 weeks, Fish Helper Pro every 37 months. The most recent releases landed on September 22, 2026 and June 11, 2026 respectively.
| Parameter | Decibel Meter | Fish Helper Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (715 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 56.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 715 — better | 1 |
| Update frequency | Every 6 weeks — better | Every 37 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.1 | 11.0 — better |
| Further details — not scored | ||
| Size | 35 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Devnex | 定敢 刘 |
Customer experience
Decibel Meter
Fish Helper Pro
Bugs and requests
Decibel Meter
Reported bugs
2 issues- Unable to close the app or cancel Google requests
- Recordings not saving despite claims of free saving
Requested features
3 requests- Add ability to save/export recordings
- Provide more customization options (weighting, etc.)
- Improve stability and reduce crashes
Fish Helper Pro
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Decibel Meter
- Weekly subscription3 Days trial$1.997 Days
- Monthly Subscription$2.991 Month
- Weekly Subscription3 Days trial$3.997 Days
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- Half-Yearly Subscription$9.496 Months
Fish Helper Pro
No in-app purchases









