# Bone Age vs LibreLinkUp

The clearest difference is price: LibreLinkUp at Free against Bone Age's $7.99. LibreLinkUp also leads on rating (4.8 vs 2.3) and ratings volume (23K vs 3). Bone Age's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

LibreLinkUp is free to download; Bone Age costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

LibreLinkUp holds the better App Store score, 4.8 against 2.3. That said, the two scores are not equally well evidenced: LibreLinkUp has 23K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 25% of Bone Age's written reviews are positive against 29% of LibreLinkUp's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 10, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Bone Age | LibreLinkUp |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/bone-age/id665745944/reviews) | **[4.8 (23K ratings)](https://appshunter.io/ios/app/librelinkup/id1234323923/reviews)** |
| Number of ratings | 3 | **23K** |
| Positive reviews | 25.0% of reviews | **28.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Paid | **Free** |
| Best chart rank | — | **#102** |
| Size | 15 MB | 89 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Simon Chapman](https://appshunter.io/developer/629291277) | [Newyu, Inc](https://appshunter.io/developer/465372406) |

## What reviewers say

### Bone Age

[App page](https://appshunter.io/ios/app/bone-age/id665745944)

This medical app calculates bone age using the Tanner-Whitehouse method, offering TWII and TWIII references for 'RUS', 'TW20', and carpal scores directly in a clinical setting.

**Highlights:** Tanner-Whitehouse method calculation, TWII and TWIII references, RUS score calculation, TW20 score calculation, Carpal score calculation, In-clinic use

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

**In-app purchases:** none


### LibreLinkUp

[App page](https://appshunter.io/ios/app/librelinkup/id1234323923)

**Currently charting:** #102 Top Free · Medical (US App Store)

Monitor and support individuals using a FreeStyle Libre sensor and compatible app. View their glucose levels with a quick glance, receive alerts for high or low glucose, and get notified about sensor status. Understand glucose patterns with history and insights.

**Highlights:** Remote glucose monitoring, Glucose history and insights, Glucose alarms (high/low), Sensor alerts, Dark mode for viewing

**In-app purchases:** none

**What reviewers like**

- 👍 Ease of use
- 🚀 Convenient remote monitoring
- 💡 Helpful for managing diabetes
- 🚀 Instant data updates
- 👍 Provides peace of mind

**What reviewers complain about**

- 🐛 Connectivity issues
- 🐛 Unreliable notifications
- 🐛 Inconsistent data accuracy
- 🐛 Frequent app crashes
- 🐛 Confusing setup process

**Reported bugs**

- Sudden loss of connectivity
- Inconsistent data sync between devices
- Alarms not triggering as expected
- Inability to log in or create account

**Requested features**

- Add graph and trend visualization
- Allow customizable alarms and notifications
- Integrate insulin dosage and food intake logging
- Provide historical data access beyond 12 hours
- Enable Apple Watch integration


## Frequently asked questions

### Is Bone Age free?

Bone Age costs $7.99, with no in-app purchases.

### Is LibreLinkUp free?

LibreLinkUp is free to download, with no in-app purchases.

### Which has better reviews, Bone Age or LibreLinkUp?

LibreLinkUp is rated higher. Bone Age averages 2.3 out of 5 from 3 ratings, while LibreLinkUp averages 4.8 from 23K ratings.

### Do Bone Age or LibreLinkUp have ads?

Neither Bone Age nor LibreLinkUp shows ads.

### Which is updated more often, Bone Age or LibreLinkUp?

Bone Age ships an update every 3 months, and LibreLinkUp every 3 months. Most recently, Bone Age was updated on September 10, 2026 and LibreLinkUp on September 26, 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.*