# Ring Sizer vs MotoDocs JA

The clearest difference is rating: MotoDocs JA at 5.0 against Ring Sizer's 1.0. MotoDocs JA also leads on ratings volume (7 vs 1) and device support (3 vs 1). Ring Sizer's advantage is ads (none vs shown) and update cadence (every 3 days vs fortnightly). On price, in-app purchases and monetization model there is nothing between them.

Both are free to download. Ring Sizer sells 2 in-app purchases, starting at $4.99 per 7 days and MotoDocs JA sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

MotoDocs JA holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: MotoDocs JA has 7 ratings behind it against 1, so its average is the more settled of the two.

Ring Sizer ships an update every 3 days, MotoDocs JA fortnightly. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Ring Sizer | MotoDocs JA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/ring-sizer-measuring-tool/id6759196779/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/motodocs-ja-car-documents/id6791041791/reviews)** |
| Number of ratings | 1 | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | Freemium | Free with in-app purchases |
| Size | 9 MB | 65 MB |
| Requires iOS | 18.6 | **15.5** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Jack Oehling](https://appshunter.io/developer/1848598108) | [Devforge Agency](https://appshunter.io/developer/1725546874) |

## What reviewers say

### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-measuring-tool/id6759196779)

This app transforms your phone into a precision tool for measuring ring sizes and finger dimensions. It helps you find the perfect fit for jewelry, convert between international sizing standards, and save multiple measurements.

**Highlights:** Instant ring sizing, Finger length measurement, Global size conversion, Save and manage sizes, Precision digital caliper

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per 7 days |
| Yearly | $24.99 | per year |


### MotoDocs JA

[App page](https://appshunter.io/ios/app/motodocs-ja-car-documents/id6791041791)

Manage all your car documents in one secure, encrypted digital wallet. Get timely renewal reminders, easily display papers to authorities, and track traffic tickets. Share vehicle access securely with renters.

**Highlights:** Digital car document storage, Renewal reminders, Officer Mode for quick display, Traffic ticket lookup, Secure rental sharing, Vehicle management, Offline document access

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MotoDocs Plus Monthly | $4.99 | per month |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is Ring Sizer free?

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

### Is MotoDocs JA free?

MotoDocs JA is free to download, with in-app purchases available.

### Which has better reviews, Ring Sizer or MotoDocs JA?

MotoDocs JA is rated higher. Ring Sizer averages 1.0 out of 5 from 1 ratings, while MotoDocs JA averages 5.0 from 7 ratings.

### Do Ring Sizer or MotoDocs JA have ads?

MotoDocs JA shows ads; Ring Sizer does not.

### Which is updated more often, Ring Sizer or MotoDocs JA?

Ring Sizer ships an update every 3 days, and MotoDocs JA fortnightly. Most recently, Ring Sizer was updated on October 28, 2026 and MotoDocs JA on October 29, 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.*