Audio File Analyzer vs OtoCanvas
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Audio File Analyzer
Analyze audio files by viewing their waveform and real-time amplitude spectrum. Explore frequency components, transcribe speech, and customize display settings. A Pro version offers ad-free viewing and higher resolution analysis.
- Simultaneous waveform and spectrum display
- Real-time frequency analysis
- Speech transcription
- Channel switching (Mix/L/R)
- Spectrum zooming
- Pitch meter display
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This app supports simultaneous display of the "audio waveform" and the FFT-based "amplitude spectrum" (frequency magnitude) for audio files on your device. (FFT: Fast Fourier Transform) You can check the frequency components around the current playback position while playing the file. [Features] - Add audio files from "Files" or songs from "Music" to a playlist within this app. - Simultaneous display of audio waveform and a real-time spectrum linked to the playback position. - Supports both portrait and landscape orientation. - Channel display switching (Mix / L / R). - Displays the peak level of the spectrum and its frequency. - Supports zooming in the frequency direction of the spectrum. - Pitch meter display. - Supports transcription (iOS 26 ~). The Pro version offers Ad-Free Viewing and High-Resolution Analysis (FFT size: 16384). [Spectrum Display Settings] - Frequency Axis: Linear, Log - FFT Size: 1024, 2048, 4096, 8192, 16384 (* 16384 is available in the Pro version) - Window Function: Hann, Hamm, Blkman, None - Octave Analysis: FFT, 1/12, 1/6, 1/3, 1, Calc Method: Max, Ave [Transcription screen] (* Available on iOS 26 or later.) Transcribes speech in the selected audio file. The results are divided into recognized speech segments and displayed in cells with their start times. Tap a cell to move to that position. Swipe left on a cell to copy its text. ================================================ [Note] This app can't add songs of the following formats. - Songs from Apple Music, iCloud, iTunes Match - Songs that are protected by digital copyright (DRM) ================================================
OtoCanvas
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OtoCanvas は、端末内の音声ファイルを波形で確認しながら編集できるオンデバイス音声エディタです。 録音素材の不要部分を切り取りたいとき、音量を上げたいとき、雑音を抑えて聞き取りやすくしたいとき、書き出し形式を変えたいときに、ひとつのアプリでまとめて作業できます。 主な機能: - 波形表示とドラッグ操作による範囲選択 - カット / トリミング - FFT / Non-local Means によるノイズリダクション - ハイパス / ローパス / 3 バンド EQ - ゲイン調整、ラウドネス正規化、クリップ防止リミッター - 無音検知と無音一括削除 - テンポ変更、フェードイン / フェードアウト、エコー - WAV / MP3 / M4A / FLAC / OGG / AAC への書き出し こんな用途に向いています: - 音声素材の編集 - 会議録音やインタビュー音声の整理 - ナレーションや読み上げ素材の簡易調整 - ポッドキャストや配信用素材の下処理 - フィールドレコーディングの切り出しと整音
Screenshots
Verdict
The clearest difference is in-app purchases: OtoCanvas at none against Audio File Analyzer's 1. OtoCanvas also leads on ads (none vs shown) and iOS requirement (14.0 vs 18.0). 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. Audio File Analyzer sells 1 one-off in-app purchase. OtoCanvas asks for nothing beyond the download.
| Parameter | Audio File Analyzer | OtoCanvas |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Weekly | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | Loop-Sessions.LLC. | takashi masuda |
In-app purchases
Audio File Analyzer
- Pro (Remove ads, High-Res analysis)$10.99
OtoCanvas
No in-app purchases
Questions
Is Audio File Analyzer free?
Is OtoCanvas free?
Do Audio File Analyzer or OtoCanvas have ads?
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