SoundEffect App vs ホイッスル
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SoundEffect App
Record and organize a vast library of sound effects. Play sounds based on your gestures, creating a personalized audio experience. Access a diverse collection of over 350 sound effects.
- 350+ sound effects
- Create custom sound effect lists
- Play sound effects via gestures
- Organize sound effects
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Apps that recorded about 350 types of sound effects. ■ What you can do · Create your own sound effects list · Play sound effects according to gestures ■Credit SE Material『OtoLogic』(https://otologic.jp/)
ホイッスル
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【主な機能】 1タップでホイッスルを鳴らすことができます。 体育の授業やスポーツの試合で審判をするときにご利用ください。 【クレジット】 音楽: 魔王魂 利用規約: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
SoundEffect App and ホイッスル are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. SoundEffect App sells 4 one-off in-app purchases and ホイッスル sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
SoundEffect App ships an update fortnightly, ホイッスル every 10 days. The most recent releases landed on September 24, 2026 and September 5, 2026 respectively.
| Parameter | SoundEffect App | ホイッスル |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (30 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 30 — better | — |
| Update frequency | Fortnightly | Every 10 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 100 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Tomohiro Ohwada | Naoki Yahata |
In-app purchases
SoundEffect App
- Banner ad removal.$1.99
- App development support$1.99
- Fullscreen ad removal.$1.99
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- All Ads removal And Support$4.99
ホイッスル
- プレミアムプラン$1.991 Month
- プレミアムプラン3 Days trial$5.991 Year
