# Vetcalculators — The Veterinary Calculator

> Veterinary medical calculator and reference tool for animal health professionals. (iPhone/iPad app by LifeLearn USA.)

- Source: https://appshunter.io/ios/app/vetcalculators/id1403466061 (this page in markdown: same URL + `.md`)
- Developer: [LifeLearn USA](https://appshunter.io/developer/1642768183)
- Category: Medical
- Price: Free with in-app purchases
- Rating: 4.70/5 from 606 App Store ratings · 42 written reviews indexed
- Age rating: 17+
- Requires: iOS 15.6 · 85 MB
- Languages: American English
- Released: 2018-07-25
- Data updated: 2026-08-26
- Monetization: subscription
- User reviews in markdown: https://appshunter.io/ios/app/vetcalculators/id1403466061/reviews.md

## What is Vetcalculators?

The Ultimate Veterinary Calculator App 
Vetcalculators is a Monthly Subscription. First Month is Free

Vetcalculators is the number one Veterinary Calculator App for veterinarians, veterinary technicians, and staff. With Vetcalculators, one can quickly and easily calculate a variety of veterinary dosages and measurements. 
 
Vetcalculators includes calculators for: 
•	Popup Drug Dose Calculator with ~200 veterinary drugs included
•	Emergency Drug dosage calculator 
•	Anesthetic, Antibiotic and General drug dosage calculators 
•	CRI (constant rate infusions) calculators 
•	Fluid therapy rates 
•	Blood glucose curve generator 
•	Canine and Feline Calorie calculator 
•	Pain score calculators 
•	Chocolate toxicity 
•	Rodenticide toxicity 
•	Xylitol toxicity 
•	Poisonous Plants 
•	Blood transfusion volumes 
•	Pet age and pregnancy calculator 
•	Blood pressure 
•	Trauma Triage scores 
•	Modified Glasgow Coma score 
•	Cushing diagnostic score 
•	Unit conversion 
 
Vetcalculators also includes a variety of veterinary references, including: 
•	Drug labels 
•	IRIS stages 
•	Pain scales 
•	Normal lab values 
•	Heartworm treatment protocols 
•	Lab test protocols 
•	Microchip lookup 
•	Vertebral heart score 
•	Body condition score charts 
•	ACVIM Mitral Valve Disease 2019 Consensus Guidelines 
•	ACVIM Feline Cardiomyopathy 2020 Consensus Guidelines 
•	Dental charts 
•	Feline and Canine AAHA Vaccination Guidelines 
•	Flea and tick product information 
•	Dog and cat breed search 
•	RECOVER Guidelines 
•	Document and QR code scanning 
Designed for Veterinarians by a Veterinarian, Vetcalculators is a valuable resource for all veterinarians, veterinary technicians, nurses, and staff. It can be used to calculate a variety of veterinary drug dosages, medical calculations, and measurements quickly and easily. The app also includes a variety of veterinary medical references. 
 
Download Vetcalculators today and start providing the best possible care for your patients! 

Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Drug dose calculators
- Emergency drug dosages
- Fluid therapy rates
- Toxicity calculators
- Pet age calculator
- Veterinary references
- Unit conversion

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Vetcalculators Subscription | $3.99 | per month |


## Chart rankings

- #48 in Top Grossing · Medical (US App Store)

## What do users think of Vetcalculators?

Overall sentiment: mixed

**Pros**

- 🚀 Saves significant time on drug calculations
- ✅ Accurate dosage calculations reduce errors
- 📚 Comprehensive reference library with multiple resources
- 💊 Useful for emergency cases and anesthesia management
- 🔧 Highly customizable with favorites and personal dosages
- 👥 Improves team communication and verification
- ⚡ Fast and efficient workflow enhancement
- 🎯 Covers multiple calculation types (fluids, toxicity, glucose)
- 📱 Portable digital reference replacing physical formularies
- 💬 Responsive and helpful customer support

**Cons**

- 💰 Switched from one-time purchase to monthly subscription
- 🔐 No grandfathering for previous paid users
- 🐛 App frequently freezes or crashes on opening
- 🐛 Unresponsive UI elements that require repeated tapping
- 🌐 Requires internet connection to function
- ❌ Limited to dogs and cats only
- ⚠️ Unreliable after recent updates
- 🔄 Data not syncing across multiple devices
- 💳 Unexpected recurring charges after app updates
- 🚫 Completely locked behind paywall with minimal trial access

**Commonly reported bugs**

- App crashes or closes immediately upon opening
- UI elements unresponsive to clicks and taps
- Drug database fails to load after updates
- Data not persisting when app order is changed
- New drugs and concentrations not saving properly
- Subscription charges reappearing after app reinstallation
- Recurring charges despite cancellation
- Inconsistent functionality across different sessions

**Most requested features**

- Support for additional animal species beyond dogs and cats
- Gram weight unit option in addition to lbs and kgs
- Cross-device data synchronization
- Offline functionality without internet requirement
- Student pricing or free tier option
- Ability to highlight/select individual drug line items
- Improved drug order saving functionality
- Free or freemium version with basic features

## Recent user reviews (10 of 42)

All indexed reviews: https://appshunter.io/ios/app/vetcalculators/id1403466061/reviews.md

### 1/5 — Can’t use it unless you pay $4 a month

*2026-03-12, version 3.1.12*

Ended up deleting this app because what do you mean you placed it behind a pay wall now?! This app was so helpful and now completely useless.

### 5/5 — Valuable recommended

*2026-02-18*

The app saves significant time, reduces calculation errors, and improves workflow in a busy clinic setting. It also enhances communication within the team because everyone can quickly verify doses and calculations accurately.
Overall, this is a reliable, practical, and highly recommended app for veterinarians and veterinary nurses. It is a powerful support tool for emergency cases, anesthesia management, and daily clinical use

### 1/5 — Asking for money now

*2026-02-02, version 3.1.11*

This was a great app for years until they started wanting to charge for it.  Delete.

### 1/5 — Suddenly charging monthly

*2026-02-01, version 3.1.11*

Bought this app a while ago, now it is charging a monthly fee…

### 1/5 — Обман

*2026-02-01*

Купил постоянную подписку несколько лет назад, а теперь с меня требуют ежемесячную оплату.

### 1/5 — WISH I COUDO GIVE ZERO STARS - NO SUBSCRIPTION

*2026-01-24, version 3.1.9*

This is such a terrible idea. I use this at daily in the clinic now all of a sudden it’s completely blocked me out. Would’ve been at least OK if people who bought it for $15 several years ago were grandfathered in but no now we have to pay this stupid subscription.

GET RID OF THE SUBSCRIPTION MODEL or I will never use this app again nor will I recommend to my colleagues

### 1/5 — So disappointed

*2026-01-21, version 3.1.8*

I bought this app many years ago for about $15 and I’ve used it DAILY. Now all of a sudden I have to pay $4 a month to use the same app I’ve already paid for?!?!?! Terrible change. Lost my business!

### 1/5 — Just another payment plan

*2025-10-15, version 3.1.7*

Used to be around 11$ but now we get a monthly subscription yay

### 1/5 — Nothing Works Unless You Pay

*2025-08-29*

Why would I pay a monthly subscription fee when I can access this information free on the web. Love the idea of an app but should be a one time fee and whatever is free on the web should also be free in the app.

**Developer response:** Hello, we apologize for the inconvenience caused by the transition to a subscription-based model. Please reach out to our support team at support@lifelearn.com with your purchase details, and we will assist you in providing access to the App. Thank you for your understanding.

### 1/5 — Not Working

*2025-06-27, version 3.1.7*

This app doesn’t work at all. I open it and I can’t even click on the options. Kinda lame that you have to pay to use it, not everyone wants to add an additional $4/mo. The whole 1 month free trial thing is unnecessary. Like stop being greedy and let people use it for free. But yeah I guess I downloaded this before and it wouldn’t let me do anything without paying and I’m not surprised it’s like this again. Not worth it if you don’t have the money.

## Frequently asked questions about Vetcalculators

### What does the Vetcalculators app do?

Vetcalculators is a veterinary medical calculator app designed for veterinarians and their staff. It allows users to quickly and easily calculate various veterinary drug dosages, medical measurements, and patient assessments. The app also provides access to a wide array of veterinary medical references.

### What are the key features of Vetcalculators?

Key features include a popup drug dose calculator with approximately 200 veterinary drugs, emergency drug dosage calculators, anesthetic and antibiotic dosage calculators, CRI calculators, fluid therapy rates, toxicity calculators for common substances like chocolate and rodenticide, pet age and pregnancy calculators, and unit conversion tools. It also offers numerous veterinary references such as drug labels, pain scales, and vaccination guidelines.

### How much does Vetcalculators cost?

Vetcalculators operates on a monthly subscription model. The first month of use is offered for free, allowing users to try the service before committing to a paid subscription.

### Who is the target audience for Vetcalculators?

The app is specifically designed for veterinarians, veterinary technicians, veterinary nurses, and other veterinary staff. It serves as a valuable resource for professionals involved in the care and treatment of animals.

### What kind of medical references are included in the app?

The app includes a comprehensive collection of veterinary references such as drug labels, IRIS stages, pain scales, normal lab values, heartworm treatment protocols, lab test protocols, microchip lookup, vertebral heart score, body condition score charts, consensus guidelines for cardiovascular diseases, dental charts, vaccination guidelines, flea and tick product information, dog and cat breed search, RECOVER Guidelines, and document/QR code scanning.

## Version history (last 5 releases)

### 3.1.13 — 2026-08-07

The Vetcalculators frontend is now connected to a unified API backend

### 3.1.12 — 2026-02-04

Updated the subscription plugin to properly identify legacy users

### 3.1.11 — 2026-01-29

Updated backend environments, corrected version number on app home screen.

### 3.1.10 — 2026-01-27

Fix to restore access to all calculators for legacy users

### 3.1.9 — 2026-01-23

Emergency fix for subscription error in latest version

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## More apps by LifeLearn USA

- [IVAPM CRI](https://appshunter.io/ios/app/ivapm-cri/id1604325948)
- [LifeLearn Sofie](https://appshunter.io/ios/app/lifelearn-sofie/id6742805460)

All apps by LifeLearn USA: https://appshunter.io/developer/1642768183

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*