Comparison

童話三部作 vs KOETRON

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

Head to head
About

童話三部作

Features
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このアプリはインタラクティブなサウンドドラマを楽しむものです。 ただお話しを聞くだけではなく、あなた自身の選択によって、お話しを変えていくことができます。 操作はとても簡単! 選択を迫られたときに、画面を軽くタッチするだけ。 選択肢は音声によって順番に再生されます。 つまり、お話しが始まってしまえば画面を全く見ることなく、お話しを進めていくことができます。 移動中や待ち時間など、ポケットの中にiPhoneを入れたまま、気軽に楽しめます! セーブは随所で自動的に行われていますので、そのままアプリを終了すれば次回は途中から再開できます。 また一度聞いた場面は画面を左から右へスライドすることでスキップすることができます。 そして記念すべき第1段は「童話三部作 -The another fairy tale-」です。 今回はたくさんの童話の中から「赤ずきん」「わらしべ長者」「長靴をはいたネコ」の3つを選択しました。 なじみの深いお話しも、選択一つで内容が大きく変わっていってしまいます。 全ての選択肢を試してみたくなること間違いなし! ぴっくるがお送りする新感覚、アクティブサウンドドラマを、どうぞお楽しみください。

About

KOETRON

Features
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KOETRON — One-tap voice transformations! KOETRON is a simple, playful voice app where you record a short clip and transform it with a single tap. Hear your voice instantly in different styles—Plushie, Robot, Ghost, Kaiju, UFO, and more. With an easy, kid-friendly interface, everyone can enjoy quick “voice toy” fun at home or on the go. Works offline, too. How to use 1-Tap Record to capture a short voice clip. 2-Tap your favorite Effect button. 3-The transformed voice plays right away—try it as many times as you like! Device & settings -Microphone access is required on first use. If you denied it, please enable the mic in your device settings. -Adjust recording/playback volume with your device’s volume buttons. -Recordings are processed on your device. This app does not transmit your recordings externally. Made by Tantanto Company We’d love to hear your feedback!

Screenshots

童話三部作4 screens
KOETRON4 screens

Verdict

The call

The clearest difference is in-app purchases: KOETRON at none against 童話三部作's 1. On price, update cadence, 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. 童話三部作 sells 1 one-off in-app purchase. KOETRON asks for nothing beyond the download.

UpkeepUpdate frequency

童話三部作 ships an update every 7 months, KOETRON every 6 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard1 real difference · 8 level
童話三部作 versus KOETRON: the parameters behind the verdict, then further details
Parameter童話三部作KOETRON
PriceFreeFree
Rating2.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 7 monthsEvery 6 months — better
AdsYesYes
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size67 MB46 MB
Age rating9+4+
Developer有限会社ぴっくるSACHIKO HAMATSU

In-app purchases

1 purchases

童話三部作

One-time1
  • Append Scenario Pack(include 2 scenario)$1.99
None

KOETRON

No in-app purchases

Questions

Is 童話三部作 free?
童話三部作 is free to download, with in-app purchases available.
Is KOETRON free?
KOETRON is free to download, with no in-app purchases.
Do 童話三部作 or KOETRON have ads?
Both 童話三部作 and KOETRON show ads.
Which is updated more often, 童話三部作 or KOETRON?
童話三部作 ships an update every 7 months, and KOETRON every 6 months. Most recently, 童話三部作 was updated on November 1, 2026 and KOETRON on October 30, 2026.

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