EmboRatio vs Ask Terumo Neuro
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
EmboRatio
Calculate the necessary coil length for aneurysm embolization. This tool also computes the current embolic rate and lists available coils in Japan.
- Coil length calculation for aneurysms
- Embolic rate calculation
- List of available coils in Japan
- Medical calculation tool
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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.
Ask Terumo Neuro
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The Ask TNβ’ application allows healthcare professionals to calculate the ID space remaining inside a catheter or a sheath when a device or several devices are placed inside it based on outer and inner diameters. The app also calculates the difference in length between the outer device and the inner device. All brand names are trademarks or registered trademarks owned by TERUMO CORPORATION, its affiliates, or unrelated third parties. Β©2026 MicroVention, Inc.
Screenshots
Verdict
EmboRatio and Ask Terumo Neuro are too close to call on the numbers: across 6 compared parameters β price, update cadence, ads and in-app purchases among them β neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· 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 October 26, 2026 and October 30, 2026 respectively.
| Parameter | EmboRatio | Ask Terumo Neuro |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | β |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | β |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.4 | 15.0 β better |
| Further details β not scored | ||
| Size | 1 MB | 86 MB |
| Age rating | 4+ | 4+ |
| Developer | Masaaki Hirata | MicroVention, Inc. |
In-app purchases
EmboRatio
No in-app purchases
Ask Terumo Neuro
No in-app purchases
Questions
Is EmboRatio free?
Is Ask Terumo Neuro free?
Do EmboRatio or Ask Terumo Neuro have ads?
Which is updated more often, EmboRatio or Ask Terumo Neuro?
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