IV drip calculation vs EMS Field
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IV drip calculation
This app simplifies IV drip rate calculation and adjustment using intuitive vibration feedback. It allows saving common settings and synchronizing them between iPhone and Apple Watch, aiding healthcare professionals in providing efficient patient care.
- Calculate drip rate
- Vibration-based drip adjustment
- Save infusion settings
- Sync between iPhone and Apple Watch
- Intuitive UI
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OnDrip is an application that calculates the drip rate of an IV and simplifies drip adjustment through vibration. Features ・Simple and intuitive UI to calculate drip rate ・Vibration-based drip adjustment ・Save frequently used infusion settings ・Synchronization of infusion settings between iPhone and Apple Watch ・Easy to use under the supervision of a nurse This application is intended to help healthcare professionals provide better medical care. Actual medical treatment should be performed at the discretion of the healthcare professional.
EMS Field
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EMS Field is a platform where paramedics, nurses, doctors, and healthcare professionals share real-world field experiences beyond textbooks. What This App Solves Unexpected cases, non-textbook responses, and near-misses have traditionally been shared only verbally. EMS Field lets you share these valuable experiences with healthcare professionals worldwide, building knowledge to prevent repeated incidents. Key Features - Voice Input: AI automatically organizes field situations as you speak - AI Structuring: Automatically tags symptoms, differentials, interventions, and lessons learned - Similar Case Search: AI suggests past similar cases - Q&A: Ask case authors directly (¥50/question) - Anonymous Posting: Only profession shown, personal info auto-detected and flagged Target Users - Paramedics & EMTs - Emergency Department Nurses - Emergency Medicine Physicians - Other Healthcare Professionals In-App Purchases - Full Access (one-time): ¥200 — Access complete cases, Q&A, posting, and question features - Questions: ¥50 per question — Ask case authors directly. They provide answers. Disclaimer This app is an information-sharing service for educational purposes, not medical diagnosis or treatment. Content is based on individual experiences and does not guarantee medical accuracy. Always base clinical decisions on professional medical knowledge.
Screenshots
Verdict
The clearest difference is update cadence: EMS Field at every 5 days against IV drip calculation's monthly. EMS Field also leads on iOS requirement (16.4 vs 26.0). 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. IV drip calculation sells 1 one-off in-app purchase and EMS Field sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
IV drip calculation ships an update monthly, EMS Field every 5 days. The most recent releases landed on October 30, 2026 and November 1, 2026 respectively.
| Parameter | IV drip calculation | EMS Field |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Monthly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 26.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 8 MB | 37 MB |
| Age rating | 12+ | 17+ |
| Developer | BLUE COMET LABS LLC | Hatsumi Takahashi |
In-app purchases
IV drip calculation
- OnDrip Pro - Lifetime$2.99
EMS Field
- 全文アクセス$0.99
Questions
Is IV drip calculation free?
Is EMS Field free?
Do IV drip calculation or EMS Field have ads?
Which is updated more often, IV drip calculation or EMS Field?
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