Comparison

Decibel Master X vs Plain|騒音を検知して環境音を自動再生

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

Head to head
About

Decibel Master X

This app offers precise real-time decibel monitoring with a visually stunning, skeuomorphic interface. It features detailed textures, intuitive layouts, and dynamic visual feedback, transforming your device into a sophisticated measurement tool. Record ambient sounds locally with total privacy.

Highlights
  • Skeuomorphic design
  • Real-time decibel tracking
  • Visual waveform graphs
  • High-quality sound recording
  • Local data storage
  • Intuitive interface
Features
Read full description

Where Analog Soul Meets Digital Precision – [Decibel Master X] Tired of boring, text-heavy utility apps? [Decibel Master X] is crafted with the philosophy of world-class product designers. Experience a high-end Skeuomorphic interface that feels like handling a premium physical device. Key Highlights: · Stunning Aesthetics: Detailed textures and an intuitive layout inspired by professional hardware. · Precision Monitoring: Real-time decibel (dB) tracking with clear guides like "Library Quiet." · Visual Immersion: Beautifully rendered waveform graphs and dynamic visual feedback during playback. · High-Quality Recording: Record ambient sounds and manage them locally with ease. · Total Privacy: No sign-ups, no servers. Your data stays securely on your device, always. A masterpiece of design and utility. With [Decibel Master X], your iPhone transforms into the most sophisticated measurement tool in your hand.

About

Plain|騒音を検知して環境音を自動再生

Features
Read full description

Plain は、周囲の音量を検知し、一定以上うるさくなったときだけ環境音を再生するアプリです。 乾燥機音や換気扇音のようなシンプルな音で、気になる生活音をやわらげ、作業や勉強に集中しやすい環境づくりをサポートします。 主な機能 ・騒音を検知して自動再生 ・DRY / VENT の2種類の音を選択可能 ・感度を3段階で調整可能 ・必要なときは手動再生にも対応 ・黒ベースの静かなミニマルUI Plain は必要なときだけ音で環境を整え、集中しやすい空気をつくることを目指しています。

Screenshots

Decibel Master X4 screens
Plain|騒音を検知して環境音を自動再生4 screens

Verdict

The call

The clearest difference is ads: Plain|騒音を検知して環境音を自動再生 at none against Decibel Master X's shown. Decibel Master X's advantage is iOS requirement (15.0 vs 26.2). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Decibel Master X ships an update fortnightly, Plain|騒音を検知して環境音を自動再生 weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 6 level
Decibel Master X versus Plain|騒音を検知して環境音を自動再生: the parameters behind the verdict, then further details
ParameterDecibel Master XPlain|騒音を検知して環境音を自動再生
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyFortnightlyWeekly — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better26.2
Further details — not scored
Size37 MB12 MB
Age rating9+4+
Developeryoungjin kimKIICHI STUDIO

In-app purchases

None

Decibel Master X

No in-app purchases

None

Plain|騒音を検知して環境音を自動再生

No in-app purchases

Questions

Is Decibel Master X free?
Decibel Master X is free to download, with no in-app purchases.
Is Plain|騒音を検知して環境音を自動再生 free?
Plain|騒音を検知して環境音を自動再生 is free to download, with no in-app purchases.
Do Decibel Master X or Plain|騒音を検知して環境音を自動再生 have ads?
Decibel Master X shows ads; Plain|騒音を検知して環境音を自動再生 does not.
Which is updated more often, Decibel Master X or Plain|騒音を検知して環境音を自動再生?
Decibel Master X ships an update fortnightly, and Plain|騒音を検知して環境音を自動再生 weekly. Most recently, Decibel Master X was updated on October 24, 2026 and Plain|騒音を検知して環境音を自動再生 on October 25, 2026.

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