# 句芒维保 vs Ring Sizer

The clearest difference is in-app purchases: 句芒维保 at none against Ring Sizer's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Ring Sizer sells 2 in-app purchases, starting at $4.99 per 7 days. 句芒维保 asks for nothing beyond the download.

句芒维保 ships an update monthly, Ring Sizer every 2 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 句芒维保 | Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ring-sizer-ring-size-measure/id6756798107/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 129 MB | 40 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Southwest Automation Research Institute, Mianyang, Sichuan](https://appshunter.io/developer/1450339293) | [Philemon Combes](https://appshunter.io/developer/1778849049) |

## What reviewers say

### 句芒维保

[App page](https://appshunter.io/ios/app/id1580021064)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-ring-size-measure/id6756798107)

Easily and accurately measure your ring size using your smartphone. Ideal for online jewelry purchases or verifying existing ring dimensions. Offers multiple sizing systems and a clean interface.

**Highlights:** On-screen guide for measurement, Supports EU, US, UK, JP sizing, Fine-tune for accuracy, Save ring sizes, Intuitive interface

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ring Sizer weekly | $4.99 | per 7 days |
| Ring Sizer yearly | $22.99 | per year |


## Frequently asked questions

### Is 句芒维保 free?

句芒维保 is free to download, with no in-app purchases.

### Is Ring Sizer free?

Ring Sizer is free to download, with in-app purchases available.

### Do 句芒维保 or Ring Sizer have ads?

Neither 句芒维保 nor Ring Sizer shows ads.

### Which is updated more often, 句芒维保 or Ring Sizer?

句芒维保 ships an update monthly, and Ring Sizer every 2 weeks. Most recently, 句芒维保 was updated on November 3, 2026 and Ring Sizer on October 30, 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.*