# Tire Size Calculator vs Decision Widget

The clearest difference is update cadence: Tire Size Calculator at every 6 weeks against Decision Widget's every 8 months. Decision Widget's advantage is review sentiment (67% vs 42%) and price ($0.99 vs $3.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Tire Size Calculator costs $3.99 and Decision Widget $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Tire Size Calculator ships an update every 6 weeks, Decision Widget every 8 months. The most recent releases landed on October 21, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Tire Size Calculator | Decision Widget |
| --- | --- | --- |
| Price | $3.99 | **$0.99** |
| Rating | — | **[4.0 (4 ratings)](https://appshunter.io/ios/app/decision-widget/id947983356/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 41.9% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 8 months |
| Monetization | Paid | Paid |
| Size | 4 MB | 13 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cheng Fan](https://appshunter.io/developer/599384923) | [Francis Bonnin](https://appshunter.io/developer/284043095) |

## What reviewers say

### Tire Size Calculator

[App page](https://appshunter.io/ios/app/tire-size-calculator/id599384920)

Easily compare tire and wheel specifications for upgrades. Calculate equivalent sprung weight differences and get safe, performance-enhancing recommendations. Supports both Imperial and Metric units.

**Highlights:** Compare tire and wheel specs, Get upgrade recommendations, Calculate sprung weight difference, Supports Imperial and Metric units, Visual tire comparison graphs, Adjustable difference variables

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Decision Widget

[App page](https://appshunter.io/ios/app/decision-widget/id947983356)

Customize your device's Home screen and Today view with custom widgets for random decision-making. Create multiple decision wheels with customizable choices, colors, and sounds for fun or practical use.

**Highlights:** Customizable Home screen and Today view widgets, Multiple decision wheels per widget, Randomly select items from customizable choices, Support for emoji smileys as choices, Adjustable font, size, and tick sounds, iOS 14 Home Screen Widgets compatible, Dark mode support

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Tire Size Calculator free?

Tire Size Calculator costs $3.99, with no in-app purchases.

### Is Decision Widget free?

Decision Widget costs $0.99, with no in-app purchases.

### Do Tire Size Calculator or Decision Widget have ads?

Neither Tire Size Calculator nor Decision Widget shows ads.

### Which is updated more often, Tire Size Calculator or Decision Widget?

Tire Size Calculator ships an update every 6 weeks, and Decision Widget every 8 months. Most recently, Tire Size Calculator was updated on October 21, 2026 and Decision Widget on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*