BoneAge:X-Ray Image assessment
38 days old
BoneAge:X-Ray Image assessment is #29 in Medical Grossing in China and charting in 2 of 30 countries we track.
Updated 25 Oct 2026 · rankings refresh through the day
DeveloperDajax LLC
CategoryMedical
PriceFree
Released
Rating★ 0.0 (0)
Version2.1
Age rating4+
First seen by us
25 Sep 2026
Installs (est.)100+ worldwide
Rating
0.0 ★
0 ratings
Measured
Best rank now
#29
Measured
BoneAge:X-Ray Image assessment on the App Store
App details
App ID
6806645946
Publisher
Dajax LLC
On the store since
Sep 2026
Under a year
Minimum OS
iOS 16.0+
iPhone 8 and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
6
EN JA KO ZH ES ZH
Size
131 MB
Also listed in
Health & Fitness
BoneAge:X-Ray Image assessment downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| MedicalGrossing | #29 | |
| MedicalGrossing | #48 |
Apps near BoneAge:X-Ray Image assessment on the chart
Medical Grossing, around #29.
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
About BoneAge:X-Ray Image assessment
BoneAge estimates a child's skeletal age from a hand X-ray in seconds — entirely on your device.
BoneAge reads a hand/wrist X-ray the way radiologists do: it examines the finger joints, thumb, carpal bones, and the growth plates of the wrist, then reports an overall bone age in years and months.
BONE AGE ASSESSMENT
• Select a hand X-ray image and get a result in seconds
• Overall skeletal age in years and months
• 17 anatomical regions detected and marked on the image, each with its own regional age estimate — see at a glance whether maturation is even
• Automatic image validation: photos and non-radiograph images are politely declined
GROWTH & ADULT HEIGHT — FREE
• Enter age, height, weight, and the parents' heights
• Adult height prediction from the child's current growth percentile, plus the classic mid-parental (Tanner) genetic target range
• CDC growth-chart percentiles for height, weight, and BMI, with beautiful interactive charts showing exactly where your child sits
PRIVATE BY DESIGN
• All analysis runs on your device — X-ray images never leave your phone
• No account, no tracking, no data collection
LANGUAGES
English, 简体中文, Español
FREE AND PRO
The free version validates your image and shows the detected regions; the growth calculator is fully free. Unlock complete results — the overall bone age and all 17 regional ages — with a single-use Credit or the Bone Age Pro subscription (auto-renews until cancelled in your store account settings).
IMPORTANT
BoneAge is for informational and educational purposes only. It is not a medical device, has not been evaluated by any regulatory authority, and must not be used for clinical diagnosis or treatment decisions. Bone age estimates carry a typical error of several months. Always consult a qualified clinician about your child's growth and development.
Privacy & Terms: http://boneage.app/privacy
Support: [email protected]
BoneAge reads a hand/wrist X-ray the way radiologists do: it examines the finger joints, thumb, carpal bones, and the growth plates of the wrist, then reports an overall bone age in years and months.
BONE AGE ASSESSMENT
• Select a hand X-ray image and get a result in seconds
• Overall skeletal age in years and months
• 17 anatomical regions detected and marked on the image, each with its own regional age estimate — see at a glance whether maturation is even
• Automatic image validation: photos and non-radiograph images are politely declined
GROWTH & ADULT HEIGHT — FREE
• Enter age, height, weight, and the parents' heights
• Adult height prediction from the child's current growth percentile, plus the classic mid-parental (Tanner) genetic target range
• CDC growth-chart percentiles for height, weight, and BMI, with beautiful interactive charts showing exactly where your child sits
PRIVATE BY DESIGN
• All analysis runs on your device — X-ray images never leave your phone
• No account, no tracking, no data collection
LANGUAGES
English, 简体中文, Español
FREE AND PRO
The free version validates your image and shows the detected regions; the growth calculator is fully free. Unlock complete results — the overall bone age and all 17 regional ages — with a single-use Credit or the Bone Age Pro subscription (auto-renews until cancelled in your store account settings).
IMPORTANT
BoneAge is for informational and educational purposes only. It is not a medical device, has not been evaluated by any regulatory authority, and must not be used for clinical diagnosis or treatment decisions. Bone age estimates carry a typical error of several months. Always consult a qualified clinician about your child's growth and development.
Privacy & Terms: http://boneage.app/privacy
Support: [email protected]
Latest updates
2.1
提升准确性:BoneAge 现在会自动旋转并裁剪手部 X 光片,无论照片以何种方式拍摄或导入,都能获得一致的评估结果。
1.9
• 可将骨龄报告分享为 PDF 或图片
• 免费预览现会显示大致骨龄范围
• 部位名称已本地化;报告与网站一致
• 新增香港生长标准
• 报告历史、与整体骨龄差异较大的部位高亮、可查看示例报告
• 应用内购买更稳定,更好地识别用手机拍摄的X光片
1.8
• 新增:香港生长标准,并优化地区名称(中国大陆、中国香港)
• 报告历史——随时查看每一次历史评估
• 与整体骨龄相差一年以上的部位现会在图像上高亮显示
• 购买前可查看示例报告
• 应用内购买更稳定可靠
• 更好地识别用手机拍摄的X光片
Store changes
What BoneAge:X-Ray Image assessment changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Description updated 
Renamed 
Bone Age: 骨龄评估 → 骨龄 :BoneAge专家AI骨龄评估
Description updated 