EmboRatio vs TSM Scale
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EmboRatio
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Displays the required length of the coil for the volume of the aneurysm. The current embolic rate can also be calculated. The Coils available only in Japan is listed.
TSM Scale
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TSM Predictor MM Scale is a clinical decision support app designed for neurosurgeons and medical professionals involved in the treatment of tuberculum sellae meningiomas (TSMs). The app leverages the Magill–McDermott (M-M) grading scale, which evaluates tumor size, optic canal invasion, and arterial involvement to help predict key surgical outcomes. Developed from peer-reviewed research validating the M-M grading scale, this app provides a practical, data-driven tool for neurosurgical planning. The TSM Predictor MM Scale which can help surgeons consider each tumor’s unique characteristics when evaluating the optimal surgical strategy.
Screenshots
Verdict
EmboRatio and TSM Scale are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on July 24, 2026 and September 14, 2026 respectively.
| Parameter | EmboRatio | TSM Scale |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.4 — better | 15.6 |
| Further details — not scored | ||
| Size | 1 MB | 21 MB |
| Age rating | 4+ | 17+ |
| Developer | Masaaki Hirata | BAPTIST HEALTH MEDICAL GROUP PHYSICIANS, LLC |
In-app purchases
EmboRatio
No in-app purchases
TSM Scale
No in-app purchases
