Comparison

SolPlayer vs Reverse Voice & Audio Editor

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

Head to head
About

SolPlayer

Transform your favorite music into Solfeggio sound sources. This app allows you to play music, create playlists, and adjust playback speed. It also features a unique Solfeggio mode to convert audio to specific healing frequencies.

Highlights
  • Music playback with repeat and resume
  • Background audio playback
  • Adjustable playback speed (0.1x to 8.0x)
  • Playlist creation and editing
  • Solfeggio mode with frequency conversion
  • Two Solfeggio conversion types available
Features
Read full description

あなたの好きな曲をソルフェジオ音源に。 あなたが普段聴いているのはどんな曲ですか? あなたの好きな曲のジャンルは? 「ヒーリング」「瞑想音楽」「クラシック」… このように、「人の身体や精神を癒やす、高める」音楽もあれば、 「J-POP」「ロック」「演歌」… このようなジャンルの音楽がすきな方もいらっしゃるでしょう。 人の好みは、人それぞれ。 だからこそ、あなたの好きな音楽を… 「人の身体や精神を癒やし、高める」効果を持つ ソルフェジオ音源(528Hz)に変えてしまいましょう! 【機能】 1.音楽再生機能 「再生」「リピート(一曲リピート・全曲リピート)」「指定位置から再生」等、一般的な音楽プレイヤーとしての機能を搭載しています。 2.バックグラウンド再生 他のアプリを使いながら、あるいはiPhoneの画面をオフにした状態で音楽を聴くことができます。 3.再生速度変更 再生スピードを0.1〜8.0倍に変更できます。リアルタイムに、高い音質のままスピードを変えられます。速聴などにどうぞ。 4.プレイリスト作成・編集 このアプリで再生する音源のプレイリストを作成・編集することが出来ます。 5.ソルフェジオモード このアプリの肝です。このプレイヤーで流せる音源すべてをソルフェジオ化することができます。ON/OFF切り替えの他、「設定」からソルフェジオ化の種類を選ぶことが出来ます。(2016/6/27現在:2種類) Ver1: 440Hzを444Hz(C:528Hz)に変換 Ver2: 440Hzを432Hzに変換 ※すでにソルフェジオ化されている音源には使用しないでください。本来の効果が半減する可能性があります。 【注意点】 ・ヘッドフォンを抜し差しした際は、安全のためプレイヤーを「停止」する仕様となっております。 ・音量変更はiPhoneのボタンで行ってください。(音量にはご注意ください)

About

Reverse Voice & Audio Editor

Features
Read full description

Flip your world, one sound at a time. Ever wondered what your voice sounds like backwards? Extract audio from videos, edit with precision, and master the "Reverse Challenge" to see if you can mimic the inverted sounds! ■Key Features - Instant Reverse: High-quality playback of any audio in reverse. - Video to Audio: Quickly extract soundtracks from your favorite videos. - Advanced Editor: Adjust speed (0.25x to 2.0x), shift pitch, and trim with ease. - Reverse Challenge: Record yourself mimicking a reversed clip and flip it back to compare. - Loop & Compare: Use A-B loop for practice and compare original vs. reversed audio instantly. ■Pro Features - Unlimited Pitch Shifting - High-Quality Export - Unlimited Storage for History

Screenshots

SolPlayer4 screens
Reverse Voice & Audio Editor4 screens

Verdict

The call

The clearest difference is in-app purchases: SolPlayer at none against Reverse Voice & Audio Editor's 1. SolPlayer also leads on iOS requirement (15.6 vs 18). Reverse Voice & Audio Editor's advantage is update cadence (every 4 days vs every 3 weeks). On price, ads 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. Reverse Voice & Audio Editor sells 1 one-off in-app purchase. SolPlayer asks for nothing beyond the download.

UpkeepUpdate frequency

SolPlayer ships an update every 3 weeks, Reverse Voice & Audio Editor every 4 days. The most recent releases landed on June 22, 2026 and September 6, 2026 respectively.

Scorecard3 real differences · 7 level
SolPlayer versus Reverse Voice & Audio Editor: the parameters behind the verdict, then further details
ParameterSolPlayerReverse Voice & Audio Editor
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews57.1% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.6 — better18
Further details — not scored
Size3 MB2 MB
Age rating4+4+
DeveloperNaoya MoriokaOsawa Shunsuke

In-app purchases

None

SolPlayer

No in-app purchases

1 purchases

Reverse Voice & Audio Editor

One-time1
  • Pro Edition$4.99

Questions

Is SolPlayer free?
SolPlayer is free to download, with no in-app purchases.
Is Reverse Voice & Audio Editor free?
Reverse Voice & Audio Editor is free to download, with in-app purchases available.
Do SolPlayer or Reverse Voice & Audio Editor have ads?
Neither SolPlayer nor Reverse Voice & Audio Editor shows ads.
Which is updated more often, SolPlayer or Reverse Voice & Audio Editor?
SolPlayer ships an update every 3 weeks, and Reverse Voice & Audio Editor every 4 days. Most recently, SolPlayer was updated on June 22, 2026 and Reverse Voice & Audio Editor on September 6, 2026.

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