Uuu vs Simple Calculator. +
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Uuu
This app simulates Japanese patrol car sirens and lights. It features pre-recorded siren sounds, the ability to record and play back custom audio, and a flashing light effect. It does not include a siren amplifier function.
- Pre-recorded siren sounds
- Custom audio recording and playback
- Flashing light effect
- Simulates patrol car sirens
- Record up to 5 channels of audio
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日本のパトロールカーのサイレンアプリ「Uuu」です。 ※※※必ずお読み下さい※※※ 日本特殊車両サイレンアプリ 緊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。 収録音 ・ウー4秒周期自動(約1分) ・ウー4秒周期自動(約1分) ・パトカーの音声4種類(1ch-4ch) 録音機能 5ch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5にします。 数字が5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。 動作・サイレンをYoutubeで確認できます。 https://youtu.be/83OEYP9vbUU
Simple Calculator. +
This app offers a straightforward and dependable calculator for iPhone and iPad. It includes advanced features like tax calculation, cost/selling price/margin calculations, and memory operations. A free version is available to try before purchasing.
- 12-digit display
- Tax calculation
- Cost, selling price, and gross margin calculations
- Memory operations
- Grand total (GT)
- Percentage calculation
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Simple, reliable, and easy-to-use calculator app for iPhone/ iPad. If you would like to try out the calculator first, download the FREE version of the app from the developer profile. Calculator features:- * 12 digits * Tax calculation * Percentage (%) * Cost/ selling price/ gross margin calculations * Memory operations * Grand total (GT) * Square root * +/- (Sign change) * Arithmetic constant calculation * Digit grouping and decimal mark as per device locale
Screenshots
Verdict
The clearest difference is review sentiment: Simple Calculator. + at 73% against Uuu's 0%. Simple Calculator. + also leads on update cadence (every 3 months vs every 95 months) and monetization model (free with in-app purchases vs paid). Uuu's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases 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
Uuu costs $1.99 and Simple Calculator. + $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Uuu ships an update every 95 months, Simple Calculator. + every 3 months. The most recent releases landed on September 22, 2026 and September 23, 2026 respectively.
| Parameter | Uuu | Simple Calculator. + |
|---|---|---|
| Price | $1.99 | $1.99 |
| Rating | — | 4.7 (147 ratings) — better |
| Positive reviews | 0.0% of reviews | 72.7% of reviews — better |
| Number of ratings | — | 147 — better |
| Update frequency | Every 95 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 24 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Kaji Takatsugu | tasser gyati |
Customer experience
Uuu
Simple Calculator. +
In-app purchases
Uuu
No in-app purchases
Simple Calculator. +
No in-app purchases
Questions
Is Uuu free?
Is Simple Calculator. + free?
Do Uuu or Simple Calculator. + have ads?
Which is updated more often, Uuu or Simple Calculator. +?
Other comparisons
