Comparison

PiPO vs Plus

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

Head to head
About

PiPO

This app simulates Japanese ambulance sirens and emergency vehicle sounds. It features recorded siren sounds, voice recordings, and a flashing light effect. It is not a real siren amplifier but a sound playback application.

Highlights
  • Ambulance siren sounds
  • Emergency vehicle voice recordings
  • Record and playback custom audio
  • Flashing light effect
  • Automatic siren function
Features
Read full description

日本の救急車のサイレンアプリ「PiPO」です。 ※※※必ずお読み下さい※※※ 日本特殊車両サイレンアプリ 救急車サイレンの姉妹アプリです。類似アプリにつき、ご購入の際は、間違えないようご注意下さい。 サイレンアンプ機能は付いておりません。よって、手動や周波数が下がっていき消音する機能は搭載しておりません。 録音したサイレンや音声を再生しているだけで、サイレンアンプの機能を再現しているものではありません。 また、「弱」ボタンのハーモニックは、端末によっては一部の周波数の音が表現できない場合があります。 姉妹アプリ「日本特殊車両サイレンアプリ 救急車サイレン」との違い ・ボタンや音声ボタンのデザインが違います ・サイレンの音質が若干違います ・左右折の注意音声の最初に「救急車が」がつきません ・自動のサイレンが付いています (ピーポーと自動サイレンは同時に鳴らすことはできません) ・ボタンタップ時、ピッと音が鳴ります(音は消せません) 収録音 ・ピーポー(約1分) ・自動サイレン(約1分) ・救急車の音声3種類(1ch-3ch) 録音機能 4chに好きな音声を録音できます。 録音した音声は、繰り返し再生できます。 警光燈機能 画面の上下が、ランダムフォーに似たパターンで点滅します。 【音声録音方法】 音声合成ボタンをタップし、右下の数字を4にします。 数字が4の時、音声CHボタンをロングタップすると録音確認メッセージが表示されるので、OKをタップすると録音を開始します。 録音のを止めるには、停止ボタンをタップします。

About

Plus

This app helps you determine the correct tire pressure for your vehicle based on various international standards. It supports multiple pressure units and highlights the benefits of proper inflation for performance, safety, and fuel efficiency.

Highlights
  • Selectable tire standards (XL, RFD, ETRTO, TRA, JATMA)
  • Switchable pressure units (kPa, bar, kg/cm2, psi)
  • Benefits of correct tire pressure explained
  • Guidance on checking tire pressure frequency
  • Supports iPhone and iPad
Features
Read full description

>>>Selectable tire standards. - XL_ExtraLoad - RFD_Reinforced - ETRTO_European - TRA_American - JATMA_Japanese >>>Switchable Pressure Units. - kpa - bar - kg/cm2 - psi >>>The correct tire pressure will give you benefits. - Bring out full performance. - Prevent flat tire. - Save gas. - Achieve SDGs 12 and 13. >>>To keep best condition. - Check the tire pressures at least per month. Let's enjoy comfortable and safety drive !

Screenshots

PiPO4 screens
Plus4 screens

Verdict

The call

The clearest difference is update cadence: Plus at every 9 days against PiPO's every 14 months. Plus also leads on review sentiment (100% vs 71%) and price ($0.49 vs $2.99). PiPO's advantage is iOS requirement (7.1 vs 15.6). On ads, in-app purchases, monetization model 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

PiPO costs $2.99 and Plus $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PiPO ships an update every 14 months, Plus every 9 days. The most recent releases landed on October 12, 2026 and October 10, 2026 respectively.

Scorecard4 real differences · 6 level
PiPO versus Plus: the parameters behind the verdict, then further details
ParameterPiPOPlus
Price$2.99$0.49 — better
Rating5.0 (1 ratings) — better—
Positive reviews71.4% of reviews100.0% of reviews — better
Number of ratings1 — better—
Update frequencyEvery 14 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS7.1 — better15.6
Further details — not scored
Size39 MB18 MB
Age rating4+4+
DeveloperKaji TakatsuguHidenori Nakashima

Customer experience

PiPO

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews14 reviews
Positive71.4%
Neutral14.3%
Negative14.3%

Plus

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

PiPO

No in-app purchases

None

Plus

No in-app purchases

Questions

Is PiPO free?
PiPO costs $2.99, with no in-app purchases.
Is Plus free?
Plus costs $0.49, with no in-app purchases.
Do PiPO or Plus have ads?
Neither PiPO nor Plus shows ads.
Which is updated more often, PiPO or Plus?
PiPO ships an update every 14 months, and Plus every 9 days. Most recently, PiPO was updated on October 12, 2026 and Plus on October 10, 2026.

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