# Bandwise — Ring sizer, fully offline

> Ring sizer, fully offline (iPhone/iPad app by 永 张.)

- Source: https://appshunter.io/ios/app/bandwise/id6785856093 (this page in markdown: same URL + `.md`)
- Developer: [永 张](https://appshunter.io/developer/1806535769)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 1 MB
- Languages: American English
- Released: 2026-07-10
- Data updated: 2026-07-18
- User reviews in markdown: https://appshunter.io/ios/app/bandwise/id6785856093/reviews.md

## What is Bandwise?

Bandwise is the calm, accurate way to find a ring size — and it works entirely on your device.

Two ways to measure:
• Match a ring — lay a ring you already own flat on the screen and size the on-screen circle to its inside edge.
• Measure a finger — wrap a paper strip around a finger and read its circumference on a true-to-scale ruler.

What makes Bandwise different:
• Accurate by design — calibrate once against any bank or ID card (a worldwide standard size) so on-screen millimetres are exact on your device.
• Truly offline — no accounts, no sign-in, no network, no tracking, no ads.
• Clean one-screen flow — your size updates live as you adjust.
• Every standard — see US, UK, EU/ISO and Japan sizes plus diameter and circumference in millimetres.

Bandwise Pro (a one-time unlock) adds the full international conversion chart, the finger ruler mode, and unlimited saved measurements for the people you shop for.

Always confirm with a jeweller before buying — Bandwise gives you a confident, well-calibrated estimate to start from.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Bandwise Pro | $4.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-07-10

No release notes.

## More apps by 永 张

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- [Dahdit](https://appshunter.io/ios/app/dahdit/id6781935331)

All apps by 永 张: https://appshunter.io/developer/1806535769

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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 2026-07-18.*