# Find Lost Bluetooth Device Pro vs Ring Sizer

The clearest difference is monetization model: Ring Sizer at free with in-app purchases against Find Lost Bluetooth Device Pro's subscription. Ring Sizer also leads on review sentiment (90% vs 74%) and rating (4.9 vs 4.7). Find Lost Bluetooth Device Pro's advantage is ads (none vs shown) and update cadence (monthly vs every 2 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Find Lost Bluetooth Device Pro sells 6 in-app purchases, starting at $3.99 per 7 days and Ring Sizer sells 6 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Ring Sizer holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 151 and 33 respectively. Written reviews point the same way: 74% of Find Lost Bluetooth Device Pro's written reviews are positive against 90% of Ring Sizer's.

Find Lost Bluetooth Device Pro ships an update monthly, Ring Sizer every 2 months. The most recent releases landed on September 9, 2026 and August 23, 2026 respectively.

## The numbers

| Metric | Find Lost Bluetooth Device Pro | Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (151 ratings)](https://appshunter.io/ios/app/find-lost-bluetooth-device-pro/id1624503135/reviews) | **[4.9 (33 ratings)](https://appshunter.io/ios/app/ring-sizer-size-measurement/id6467196564/reviews)** |
| Number of ratings | **151** | 33 |
| Positive reviews | 73.9% of reviews | **90.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 29 MB | 37 MB |
| Requires iOS | 16.6 | **12.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AppLiks Sp. z O.O.](https://appshunter.io/developer/1804335622) | [ITincubator UAB](https://appshunter.io/developer/1617775851) |

## What reviewers say

### Find Lost Bluetooth Device Pro

[App page](https://appshunter.io/ios/app/find-lost-bluetooth-device-pro/id1624503135)

Locate lost Bluetooth devices like headphones, watches, and phones using a proximity radar and signal scanner. The app also allows you to test speaker frequencies for your devices.

**Highlights:** Locate lost Bluetooth devices, Estimate distance to device, Proximity radar and signal scanner, Device loss notification, Test speaker frequencies, Supports all Bluetooth devices

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bluetooth Device Finder Pro | $3.99 | per 7 days |
| Weekly Access | $3.99 | per 7 days |
| Device Finder Pro | $6.99 | per month |
| Monthly Access | $6.99 | per month |
| Bluetooth Finder Premium | $9.99 | per year |
| Yearly Access | $9.99 | per year |


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-size-measurement/id6467196564)

Accurately measure your ring size for any jewelry purchase. This app provides precise sizing guides, international compatibility, and allows you to save your measurements for easy reference. Get expert tips to enhance your jewelry shopping experience.

**Highlights:** Accurate ring sizing, International size compatibility (US, UK, EU), Save measurement results, Expert jewelry tips, Precise measurement guides

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ring Sizer | $0.99 | per 7 days |
| Weekly Access | $0.99 | per 7 days |
| Monthly Access | $2.99 | per month |
| Ring Size | $2.99 | per month |
| Ring Size Finder | $9.99 | per year |
| Yearly Access | $9.99 | per year |


## Frequently asked questions

### Is Find Lost Bluetooth Device Pro free?

Find Lost Bluetooth Device Pro is free to download, with in-app purchases available.

### Is Ring Sizer free?

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

### Which has better reviews, Find Lost Bluetooth Device Pro or Ring Sizer?

Ring Sizer is rated higher. Find Lost Bluetooth Device Pro averages 4.7 out of 5 from 151 ratings, while Ring Sizer averages 4.9 from 33 ratings.

### Do Find Lost Bluetooth Device Pro or Ring Sizer have ads?

Ring Sizer shows ads; Find Lost Bluetooth Device Pro does not.

### Which is updated more often, Find Lost Bluetooth Device Pro or Ring Sizer?

Find Lost Bluetooth Device Pro ships an update monthly, and Ring Sizer every 2 months. Most recently, Find Lost Bluetooth Device Pro was updated on September 9, 2026 and Ring Sizer on August 23, 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.*