Decibel Meter Plus vs EVJN
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Decibel Meter Plus
Measure ambient sound levels and understand their impact on hearing. This app provides real-time decibel readings, exposure time guidelines, and information on noise-induced hearing loss. It helps you identify loud environments and learn how to protect your hearing.
- Measure sound levels
- Display average, peak, and max values
- Plotted history of average values
- Information on NIHL
- Decibel exposure time guidelines
- Calibrate measurements
- Record and export data
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Decibel Meter helps you quickly check the sound level around you using your device’s built-in microphone. Open the app and instantly see the current sound level in decibels. You can use it to get a general idea of everyday noise levels at home, in the office, in classrooms, outdoors, or in other environments. Key Features: • Real-time sound level measurement • Clear decibel display • Average, peak, and maximum values • Simple visual meter and history graph • Calibration adjustment for different devices and environments • Easy-to-use interface for quick checks • Support for iPhone and iPad • Multiple language support • In-app Support for feedback and questions Please note: Decibel readings may vary depending on your device microphone, case, distance from the sound source, background noise, and calibration settings. This app is designed for general reference and everyday use. It is not a replacement for a certified professional sound level meter. Download Decibel Meter and check the sound around you with ease.
EVJN
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Simple event journal.
Screenshots
Verdict
The clearest difference is price: EVJN at Free against Decibel Meter Plus's $0.99. EVJN also leads on iOS requirement (12.4 vs 15.8). Decibel Meter Plus's advantage is update cadence (every 6 weeks vs every 4 months). On ads, in-app purchases 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
EVJN is free to download; Decibel Meter Plus costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Decibel Meter Plus ships an update every 6 weeks, EVJN every 4 months. Both last shipped on October 19, 2026.
| Parameter | Decibel Meter Plus | EVJN |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.0 (125 ratings) — better | — |
| Positive reviews | 35.7% of reviews | — |
| Number of ratings | 125 — better | — |
| Update frequency | Every 6 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.8 | 12.4 — better |
| Further details — not scored | ||
| Size | 14 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | 华芳 张 | The Boring Two Cents Games Inc. |
Bugs and requests
Decibel Meter Plus
Reported bugs
7 issues- App requires developer updates and iOS compatibility fixes
- Baseline reading of 50-80 dB even in complete silence
- Readings spike dramatically with minimal sound input
- Graph display lacks user control
- Inconsistent measurements in same environment
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- Microphone sensitivity cannot be adjusted
- App crashes or fails to function on some devices
Requested features
6 requests- Calibration function to adjust readings
- Higher maximum dB limit (120+ dB) for loud events
- Ability to attach photos with meter readings
- Better baseline reset to 0 dB in silence
- dB(A) weighting filter option
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- Improved control over graphical display
EVJN
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Decibel Meter Plus
No in-app purchases
EVJN
No in-app purchases
Questions
Is Decibel Meter Plus free?
Is EVJN free?
Do Decibel Meter Plus or EVJN have ads?
Which is updated more often, Decibel Meter Plus or EVJN?
Other comparisons
