MasterTone vs ConvertiSlowed
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MasterTone
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MasterTone は、 シンプルな操作で音源を仕上げるための オフライン・マスタリング/リマスタリングアプリです。 複雑な設定や視覚的な演出はありません。 必要なのは モード選択と Intensity ノブだけ。 2-pass オフライン処理により、 入力音源を解析し、過度な歪みを避けながら 実用的な音量とバランスに整えます。 主な特長 • 2-pass / offline processing 音源を解析後に書き出す、安定したオフライン処理 • Safe / Loud モード 配信向けのクリーンな仕上がり、または音圧を重視した仕上がり • Single Intensity control 音の方向性を一つのノブで調整 • Peak control with soft saturation クリッピングを抑え、耳障りなピークを穏やかに処理 • WAV / AAC 書き出し対応 • 完全オフライン動作 音源は端末内で処理され、外部に送信されません こんな用途に • 同人音楽・自主制作音源の最終仕上げ • 既存音源の軽いリマスタリング • 配信・提出用の音量調整 • iPad / iPhone 完結の制作環境 ※ 表示される Loudness / Peak 値は参考値(approx)です。 ※ 本アプリは専門的なマスタリング作業を置き換えるものではありません。
ConvertiSlowed
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Create the mood that fits you from your own tracks. ConvertiSlowed turns an audio file into slowed + reverb, nightcore, speed up or bass boost, right on your iPhone. IMPORT YOUR TRACK Choose an MP3, WAV, M4A, FLAC or OGG file from your phone. No account is required, and no track is ever sent to a server. TWEAK YOUR EDIT LIVE • Change speed from 0.5x to 2x • Add bass boost and reverb • Use Slowed + Reverb, Nightcore, Bass Boost and Speed Up presets • Hear the result instantly and fine-tune every setting EXPORT AND SHARE Export your edit as M4A or WAV, then share it with any app you choose. Exporting continues when your screen is locked or the app moves to the background. BUILT FOR PRIVACY All audio processing stays on your device. No account, no audio server and no microphone recording. Your first export is ad-free; an ad may occasionally appear before later exports.
Screenshots
Verdict
The clearest difference is price: ConvertiSlowed at Free against MasterTone's $0.49. ConvertiSlowed also leads on iOS requirement (16.4 vs 26.2). MasterTone's advantage is ads (none vs shown). On 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
ConvertiSlowed is free to download; MasterTone costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | MasterTone | ConvertiSlowed |
|---|---|---|
| Price | $0.49 | Free — better |
| Update frequency | — | Monthly |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.2 | 16.4 — better |
| Further details — not scored | ||
| Size | 1 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | TAKASHI NOSE | Mickael Barthemy |
In-app purchases
MasterTone
No in-app purchases
ConvertiSlowed
No in-app purchases
Questions
Is MasterTone free?
Is ConvertiSlowed free?
Do MasterTone or ConvertiSlowed have ads?
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