Comparison

Tire Calculator (Offset&Speed) vs 割合計算機

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

Head to head
About

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.

Highlights
  • Wheel offset calculation
  • Speedometer error calculation
  • GPS speedometer error measurement
  • Rim position change calculation
  • Tread width change calculation
  • Actual speed vs. meter display
Features
Read full description

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

About

割合計算機

Features
Read full description

割合、%、割引、%OFFが計算できるアプリです。 買い物などで便利です。

Screenshots

Tire Calculator (Offset&Speed)3 screens
割合計算機4 screens

Verdict

The call

The clearest difference is price: 割合計算機 at Free against Tire Calculator (Offset&Speed)'s $1.99. 割合計算機 also leads on update cadence (every 2 months vs every 4 months) and iOS requirement (16.4 vs 26.0). Tire Calculator (Offset&Speed)'s advantage is ads (none vs shown). On 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

CostPrice · In-app purchases · Ads · Monetization

割合計算機 is free to download; Tire Calculator (Offset&Speed) costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Tire Calculator (Offset&Speed) ships an update every 4 months, 割合計算機 every 2 months. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 6 level
Tire Calculator (Offset&Speed) versus 割合計算機: the parameters behind the verdict, then further details
ParameterTire Calculator (Offset&Speed)割合計算機
Price$1.99Free — better
Rating5.0 (3 ratings) — better—
Positive reviews85.7% of reviews—
Number of ratings3 — better—
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.016.4 — better
Further details — not scored
Size9 MB5 MB
Age rating4+4+
DeveloperSatoshi MoriRisako Asai

In-app purchases

None

Tire Calculator (Offset&Speed)

No in-app purchases

None

割合計算機

No in-app purchases

Questions

Is Tire Calculator (Offset&Speed) free?
Tire Calculator (Offset&Speed) costs $1.99, with no in-app purchases.
Is 割合計算機 free?
割合計算機 is free to download, with no in-app purchases.
Do Tire Calculator (Offset&Speed) or 割合計算機 have ads?
割合計算機 shows ads; Tire Calculator (Offset&Speed) does not.
Which is updated more often, Tire Calculator (Offset&Speed) or 割合計算機?
Tire Calculator (Offset&Speed) ships an update every 4 months, and 割合計算機 every 2 months. Most recently, Tire Calculator (Offset&Speed) was updated on November 6, 2026 and 割合計算機 on November 4, 2026.

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