Comparison

動画倍速再生・ムースピ(再生スピード調整) vs Koetsuku

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

Head to head
About

動画倍速再生・ムースピ(再生スピード調整)

Features
Read full description

動画の再生速度を手軽に変更できるアプリです。 左右反転(ミラー表示)などもできます。 ◆活用例 ・ダンス振り付け練習 ・スポーツのフォーム確認 ・楽器練習 ・部品解体、復元手順の確認 ・決定的瞬間のスローモーション確認 ・動画視聴の時短 ◆できること ・スピード調整(0.1〜10倍) ・音量調整(0〜3.0倍) ・音程維持のON/OFF ・左右反転 ・フレームレート(fps)変更 ご意見・ご感想などあればご連絡ください。 機能追加のご提案なども気軽にして頂ければ幸いです。

About

Koetsuku

Features
Read full description

Koetsuku-cho is a voiceover recording and audio preparation app for short-form video creators. When you want to add your own voice to YouTube Shorts, TikTok, Instagram Reels, or other short videos, Koetsuku-cho helps you record while reading your script, compare multiple takes, adjust the audio, and export it for your editing workflow. Key Features - Record while reading your script - Save projects with titles, scripts, and notes - Manage multiple takes for each project - Choose the take you want to use - Adjust pitch, speaking speed, volume, silence, and noise - Use presets for short videos, bright narration, calm narration, commentary, and news-style delivery - Check the approximate duration while preparing your audio - Export audio through the iOS share sheet - Send audio to Files, AirDrop, video editing apps, or other destinations supported by iOS Record With Your Script on Screen Each project can store a title, script, and notes. During recording, your script stays on screen, so you do not need to switch between apps. You can also adjust the script display to make it easier to read. Manage Multiple Takes Record several takes, listen back, compare them, and choose the one you want to use. This makes it easier to keep track of which recording belongs to which script. Prepare Audio for Short Videos Koetsuku-cho provides simple audio controls for creators who want to use their own voice in videos. You can adjust: - Pitch - Speaking speed - Volume - Silence trimming - Noise reduction The app also includes presets designed for common narration styles, such as short videos, bright voice, calm voice, commentary, and news-style narration. Export Through the iOS Share Sheet When your audio is ready, you can export it through the iOS share sheet. You can save it to Files, send it with AirDrop, or pass it to video editing apps and other destinations supported by iOS. On-Device Storage Your recordings, scripts, project information, notes, and settings are saved on your device. Koetsuku-cho does not require login or account registration, and it does not upload your audio or scripts to an external server. No AI Voice Generation or Voice Cloning Koetsuku-cho is not an AI voice generation app. It does not create synthetic voices, clone voices, copy another person's voice, or imitate celebrities, creators, voice actors, or public figures. Record your own voice, prepare it for video, and export it when you are ready.

Screenshots

動画倍速再生・ムースピ(再生スピード調整)3 screens
Koetsuku4 screens

Verdict

The call

The clearest difference is ads: Koetsuku at none against 動画倍速再生・ムースピ(再生スピード調整)'s shown. Koetsuku also leads on update cadence (every 2 days vs every 2 months). On price, in-app purchases, device support and iOS requirement 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. 動画倍速再生・ムースピ(再生スピード調整) sells 4 one-off in-app purchases and Koetsuku sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

動画倍速再生・ムースピ(再生スピード調整) ships an update every 2 months, Koetsuku every 2 days. The most recent releases landed on October 21, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 4 level
動画倍速再生・ムースピ(再生スピード調整) versus Koetsuku: the parameters behind the verdict, then further details
Parameter動画倍速再生・ムースピ(再生スピード調整)Koetsuku
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 days — better
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.1 — better
Further details — not scored
Size5 MB50 MB
Age rating4+4+
DeveloperTomohiro OhwadaHARVEST LAB

In-app purchases

4 purchases

動画倍速再生・ムースピ(再生スピード調整)

One-time4
  • 開発応援$0.99
  • バナー広告除去$1.99
  • フルスクリーン広告除去$1.99
Show 1 more
  • 全広告除去+開発応援$3.99
1 purchases

Koetsuku

One-time1
  • プレミアムプラン(制限解除)$4.99

Questions

Is 動画倍速再生・ムースピ(再生スピード調整) free?
動画倍速再生・ムースピ(再生スピード調整) is free to download, with in-app purchases available.
Is Koetsuku free?
Koetsuku is free to download, with in-app purchases available.
Do 動画倍速再生・ムースピ(再生スピード調整) or Koetsuku have ads?
動画倍速再生・ムースピ(再生スピード調整) shows ads; Koetsuku does not.
Which is updated more often, 動画倍速再生・ムースピ(再生スピード調整) or Koetsuku?
動画倍速再生・ムースピ(再生スピード調整) ships an update every 2 months, and Koetsuku every 2 days. Most recently, 動画倍速再生・ムースピ(再生スピード調整) was updated on October 21, 2026 and Koetsuku on October 9, 2026.

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