# NanoTire — Tire Calculator & 3D Wheels

> Simple tire size calculator with a Today Widget for quick access. (iPhone/iPad app by 恒俭 董.)

- Source: https://appshunter.io/ios/app/nanotire/id1318123313 (this page in markdown: same URL + `.md`)
- Developer: [恒俭 董](https://appshunter.io/developer/947356968)
- Category: Utilities
- Price: $1.99
- Rating: 4.30/5 from 8 App Store ratings
- Age rating: 4+
- Requires: iOS 17.6 · 23 MB
- Languages: French (France), German (Germany), American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan), Korean, European Spanish, Japanese
- Released: 2017-11-30
- Data updated: 2026-08-22
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/nanotire/id1318123313/reviews.md

## What is NanoTire?

NanoTire brings tire-size comparison, premium 3D visualization and a full-screen GPS driving gauge together in one carefully designed app for iPhone and iPad.

TIRE SIZE COMPARISON
• Compare original and target width, aspect ratio and rim diameter.
• View nominal sidewall, radius, diameter, circumference, revolutions, ride-height change and speedometer/distance difference.
• Adjust reference speed and switch between metric and imperial units.
• Explore mathematically matched candidate sizes with a configurable safety tolerance.

3D APPEARANCE STUDIO
• Rotate a detailed 3D tire freely.
• Choose wheel designs, finishes, tread patterns, caliper colors, brake-rotor sizes and types, and studio scenes.
• Keep appearance choices consistent across the main preview and vehicle photo preview.

VEHICLE PHOTO PREVIEW
• Place the selected wheel style on a side-view vehicle photo.
• Manually align size, perspective, wheel-face angle, occlusion and rotation.
• Export and share the composed preview image.
• This is a visual preview, not a fitment guarantee.

GPS DRIVING GAUGE
• Six visual themes with portrait and landscape layouts.
• HUD mirror mode, speed alert, trip distance, maximum/average speed and duration.
• Map-enhanced landscape layout using Apple MapKit.
• NanoTire uses foreground location only while the gauge is active and does not record your route.

SAVE, SHARE & WIDGETS
• Save common tire comparisons and restore them later.
• Share a clear text or image comparison report.
• The optional WidgetKit widget shows recent 7-day steps and walking distance.

NanoTire supports English, Simplified Chinese, Traditional Chinese, Japanese, Korean, German, Spanish and French, with Light and Dark Mode and dedicated iPad layouts.

IMPORTANT
Calculations are based on nominal tire dimensions. Actual dimensions and fitment vary by manufacturer, rim width, load, pressure, suspension, clearance and vehicle configuration. Always verify with the tire or vehicle manufacturer, or a qualified professional, before installation.

## Key features

- Tire size conversion
- Easy to use interface
- Today Widget for quick info
- Supports all system versions


## Frequently asked questions about NanoTire

### What is Tire Convert Calc?

Tire Convert Calc is a utility application designed to help users easily calculate and compare tire sizes. It offers a simple interface for quick conversions and includes a Today Widget for convenient access to information.

### How much does Tire Convert Calc cost?

Tire Convert Calc is a paid application, available for a one-time purchase of $1.99. This grants you full access to all its features without any additional in-app purchases or subscriptions.

### Does Tire Convert Calc have ads?

No, Tire Convert Calc is ad-free. You can use all of its features without any interruptions from advertisements.

### What devices is Tire Convert Calc compatible with?

Tire Convert Calc is designed for iOS devices, specifically iPhones and iPods. It supports all system versions, ensuring broad compatibility for users with compatible Apple hardware.

### How often is Tire Convert Calc updated?

The latest version of Tire Convert Calc is 1.3.2, last updated on September 16, 2025. While update frequency can vary, this indicates recent support and potential for future improvements.

### What is the age rating for Tire Convert Calc?

Tire Convert Calc has an age rating of 4+. This means it is suitable for users of all ages, with no content restrictions.

### What do users think of Tire Convert Calc?

Based on the available data, Tire Convert Calc has received a high rating of 4.7 stars from 6 ratings. This suggests a positive user sentiment regarding its functionality and ease of use.

### Can I access Tire Convert Calc information offline?

Yes, Tire Convert Calc is designed to function offline. Once installed, you can perform tire calculations and access widget information without requiring an active internet connection.

## Version history (last 5 releases)

### 2.0.0 — 2026-08-15

- A new SwiftUI experience for iPhone and iPad, with dedicated two-column iPad layouts and Light/Dark Mode support.
- Clearer tire-size comparison with nominal diameter, ride-height, speedometer and distance calculations, plus adjustable reference speed.
- Interactive 3D tire visualization and an appearance studio with wheel, finish, tread, caliper and brake-rotor options, plus photo-based vehicle appearance previews with manual alignment and image sharing.
- Mathematically matched candidate sizes, safety guidance, saved setups, and text/image sharing.
- Six full-screen GPS driving-gauge themes with portrait, landscape, HUD and map-enhanced layouts.
- The classic 7-day steps and distance widget, rebuilt with WidgetKit.
- Expanded tire-marking guides, improved feedback and review flows, and full support for eight languages.

### 1.3.2 — 2025-09-16

- Support for iOS 26
- Fix Bugs

### 1.3.1 — 2025-03-28

- Adapt to the new system
- Performance optimization

### 1.3.0 — 2023-11-21

- fix bug

### 1.2.8 — 2022-01-02

- fix bugs

## Apps similar to NanoTire

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Easily Calc](https://appshunter.io/ios/app/easily-calc/id6474380761) | 5.0 (5) | Free | Utilities |
| [CarSpeedTest](https://appshunter.io/ios/app/carspeedtest/id1539375221) | — | Free | Utilities |
| [Fuel Calculator: Gas Mileage](https://appshunter.io/ios/app/fuel-calculator-gas-mileage/id1668382131) | 4.8 (61) | Free | Utilities |
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| [Tire Size Calculator](https://appshunter.io/ios/app/tire-size-calculator/id599384920) | — | $2.99 | Utilities |
| [AutoMod Pro](https://appshunter.io/ios/app/automod-pro/id6737517778) | 5.0 (1) | $0.99 | Utilities |

## More apps by 恒俭 董

- [NanoRate](https://appshunter.io/ios/app/nanorate/id1321939806)
- [Bus To Go](https://appshunter.io/ios/app/bus-to-go/id1325018907)
- [Charge Go](https://appshunter.io/ios/app/charge-go/id1328310415)
- [CPU X](https://appshunter.io/ios/app/cpu-x/id1329609396)
- [Blur Go](https://appshunter.io/ios/app/blur-go/id1329917248)

All apps by 恒俭 董: https://appshunter.io/developer/947356968

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-22.*