Uuu vs Tire Calculator (Offset&Speed)
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
Tire Calculator (Offset&Speed)
Easily calculate wheel offset and speedometer errors after tire changes. This tool helps determine changes in rim position, tread width, and actual speed versus displayed speed. It also offers GPS-based speedometer error measurement.
- Wheel offset calculation
- Speedometer error calculation
- GPS speedometer error measurement
- Rim position change calculation
- Tread width change calculation
- Actual speed vs. meter display
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Easily calculate the effects of wheel and tire size changes A convenient calculation tool for anyone considering wheel upgrades, tire size changes, or fitment adjustments. Simply enter your current and new specifications to quickly compare the impact on your vehicle. -Main Features -Wheel Comparison •Calculate inner rim position changes •Calculate outer rim position changes •Calculate tread width changes -Tire Comparison •Calculate speedometer error (%) •Compare indicated speed and actual speed •Vehicle-specific speedometer error can also be included in calculations -Speedometer Error Measurement •Accurate GPS-based speed measurement -Data Storage •Save comparison records -Important Notes Measurement results may vary depending on GPS reception and environmental conditions. Use measured values as a reference only. Actual wheel and tire dimensions may vary by manufacturer and model. Calculation results are for reference purposes only. Always consult a qualified professional before making vehicle modifications. The developer assumes no responsibility for any damages or issues resulting from the use of this application. -Specifications Wheel Offset Calculator •Rim Width (in): 3" to 16" (supports 0.25" increments) •Offset (mm): -60 to +70 •Backspacing (in): 3" to 13" Speedometer Error Calculator •Tire Width (mm): 125 to 405 •Aspect Ratio (%): 20 to 90, including 82 (R) •Supports 82-series radial tires commonly used on vans and light trucks •Rim Diameter (in): 10 to 32 •Direct Tire Diameter Input: 100 to 1500 mm or 4 to 60 in •Vehicle Speedometer Error Correction (%): -20 to +20 Speedometer Error Measurement •Measurable speed range: 10 to 200 km/h or 10 to 200 mph
Screenshots
Verdict
The clearest difference is review sentiment: Tire Calculator (Offset&Speed) at 86% against Uuu's 0%. Tire Calculator (Offset&Speed) also leads on update cadence (every 4 months vs every 95 months). Uuu's advantage is iOS requirement (12.0 vs 26.0). On price, ads, in-app purchases and monetization model 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 Tire Calculator (Offset&Speed) $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Uuu ships an update every 95 months, Tire Calculator (Offset&Speed) every 4 months. Both last shipped on November 11, 2026.
| Parameter | Uuu | Tire Calculator (Offset&Speed) |
|---|---|---|
| Price | $1.99 | $1.99 |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | 0.0% of reviews | 85.7% of reviews — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 95 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 24 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Kaji Takatsugu | Satoshi Mori |
Customer experience
Uuu
Tire Calculator (Offset&Speed)
In-app purchases
Uuu
No in-app purchases
Tire Calculator (Offset&Speed)
No in-app purchases
Questions
Is Uuu free?
Is Tire Calculator (Offset&Speed) free?
Do Uuu or Tire Calculator (Offset&Speed) have ads?
Which is updated more often, Uuu or Tire Calculator (Offset&Speed)?
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