CMES vs BoneCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CMES
This application allows users to connect to an offline content server for medical education materials. It facilitates the retrieval of Continuing Medical Education (CME) content when on the same network as the server.
- Offline content server connection
- Retrieve CME content
- Connect via mobile device
- Same network connectivity required
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CMES-Pi is an offline content server for Continuing Medical Education (CME) content sharing. The CMES app is the most convenient way to connect and retrieve content from the CMES-Pi. For more information please visit: http://cmesworld.org/cmes_product-Pi.html How it works: You can use the CMES app on your mobile phone to connect to the CMES-Pi once you are on the same network as CMES-Pi.
BoneCalc
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The BoneCalc app is designed for the calculation of Z-scores and percentiles for bone mineral content (BMC) and areal bone mineral density (aBMD) for children under 20 years of age, as measured by dual-energy X-ray absorptiometry (DXA), for the following sites: whole-body subtotal (total-body-less-head), total hip, femoral neck, lumbar spine, distal ⅓ radius and ultradistal radius. Separate race-specific (Black and non-Black) and race-neutral calculations are available by age and sex. Height-Z–adjusted Z-scores for these measures are also calculated. The BMC and aBMD data are derived from the CHOP Bone Mineral Density in Childhood Study: race-specific for ages 5–20 [Zemel B et al., J Clin Endocrinol Metab 2011;96(10):3160–3169]; race-specific for ages 1–5 [Kalkwarf HJ et al., J Clin Endocrinol Metab 2022;107(9):e3887–e3900]; and race-neutral ages 5–20 [Zemel BS et al., J Clin Endocrinol Metab 2025;110(11):3034–3048]. Calculations are also available for lumbar-spine bone mineral apparent density (BMAD) for children 5–20 years of age: race-specific [Kindler JM et al. J Clin Endocrinol Metab 2019;104(4):1283–1292] and race-neutral [Zemel BS et al., J Clin Endocrinol Metab 2025;110(11):3034–3048].
Screenshots
Verdict
The clearest difference is update cadence: BoneCalc at weekly against CMES's every 11 months. CMES's advantage is iOS requirement (13.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CMES ships an update every 11 months, BoneCalc weekly. The most recent releases landed on September 8, 2026 and September 13, 2026 respectively.
| Parameter | CMES | BoneCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 11 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 42 MB | 72 MB |
| Age rating | 17+ | 17+ |
| Developer | Techies Without Borders | BC Children's Hospital |
In-app purchases
CMES
No in-app purchases
BoneCalc
No in-app purchases








