SafeLocal vs Fractures
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SafeLocal
This app simplifies safe local anesthetic dosage calculations for medical professionals. It accounts for patient weight, disease processes, anesthetic mixtures, and additives to determine maximum safe doses and track remaining amounts, eliminating manual calculations.
- Dosage calculator for local anesthetics
- Adjusts dose by patient weight
- Includes anesthesia with or without epinephrine
- Accounts for comorbidities
- Calculates remaining safe dose
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SafeLocal is an application developed by Johns Hopkins that makes calculating safe dosages of local anesthetic quick and easy for anesthesiologists, surgeons, and other medical providers. It seamlessly incorporates patient weight, disease processes, mixtures of local anesthetic, and presence or absence of additives, to calculate the maximum safe dose of local anesthetic without the hassle of going through the calculations by hand, all while tracking how much of the maximum safe dose has been used up and how much is left over for safe administration. FEATURES: ● Dosage calculator for local anesthetics, including complex mixtures and non-standard concentrations. ● Adjusts maximum safe dose by patient weight (lbs or kg). ● Choice between anesthesia with or without epinephrine. ● Option to add comorbidities such as extremes of age, severe renal dysfunction, hepatic dysfunction, or advanced heart failure, with automatic adjustment of maximum safe dose. ● Ability to calculate remaining safe dose of anesthesia for anesthesiologist or surgeon to administer based on how much has already been administered. Calculations based on Chapter 36 (Local Anesthesia) of Miller’s Anesthesia, 8th Edition. Adjustment for comorbidities based on the 2004 publication “Maximum Recommended Doses of Local Anesthetics: A Multifactorial Concept” by Rosenberg et al. The information provided by the application is based on expert opinion. It is to be used as a recommendation only. Clinical judgment by a physician is required in every situation. The user assumes all responsibility for decisions made with the information provided by this app. Project produced at the Johns Hopkins University School of Medicine by Jonathan D. Lin, M.D. and Jean-Pierre P. Ouanes, D.O. Funded generously by the Johns Hopkins Bayview Patient Safety Pyramid Grant Program. Adapted from the 2017 version of the American Society of Regional Anesthesia and Pain Medicine Checklist for Managing Local Anesthetic Systemic Toxicity. Source: Neal JM, Woodward CM, Harrison TK. The American Society of Regional Anesthesia and Pain Medicine Checklist for Managing Local Anesthetic Systemic Toxicity: 2017 Version. Reg Anesth Pain Med. 2018 Feb;43(2):150-153.
Fractures
This free medical reference app provides emergency physicians and healthcare providers with easy-to-use guidance on managing fractures and bony injuries. It features a bone map, step-by-step splinting instructions, and offline access to expert-approved content.
- Bone map for injury selection
- Keyword search for fractures
- Step-by-step splinting instructions
- Offline access to information
- Expert-approved and curated content
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Say hello to Fractures.app - your new best friend when it comes to dealing with fractures and bony injuries! This awesome (and free) app is here to make life easier for emergency physicians and healthcare providers, whether you're a seasoned pro or just starting out. Key Features: - Easy-to-use interface: Use our bone map to select the injured region and get a selection of fractures. You can also search through a comprehensive list with just a keyword. - Step-by-step guidance: No more guesswork! Our app gives you straightforward, easy-to-follow instructions on splint application and managing all sorts of fractures. - Offline support: No internet? No problem: Get crucial fracture info even when you're offline, so you're always ready to roll. - Trustworthy content & expert-approved: Rest easy knowing that all information in Fractures.app is meticulously curated, reviewed, and updated by a team of medical experts, so you're always working with reliable and accurate knowledge. Fractures.app is changing the game for healthcare providers everywhere, putting top-notch fracture treatment info right at your fingertips. Disclaimer: This application is not intended to be used by non-clinicians. If you are not a clinician and have sustained a laceration - please seek professional medical attention.
Screenshots
Verdict
The clearest difference is review sentiment: Fractures at 100% against SafeLocal's 30%. Fractures also leads on rating (4.9 vs 3.6). SafeLocal's advantage is iOS requirement (13.5 vs 16.4). On price, ratings volume, update cadence and ads 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.
Fractures holds the better App Store score, 4.9 against 3.6. Both are backed by a comparable volume of ratings — 47 and 24 respectively. Written reviews point the same way: 30% of SafeLocal's written reviews are positive against 100% of Fractures's.
SafeLocal ships an update every 6 months, Fractures every 9 months. Both last shipped on October 24, 2026.
| Parameter | SafeLocal | Fractures |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (47 ratings) | 4.9 (24 ratings) — better |
| Positive reviews | 30.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 47 — better | 24 |
| Update frequency | Every 6 months — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.5 — better | 16.4 |
| Further details — not scored | ||
| Size | 1 MB | 33 MB |
| Age rating | 17+ | 17+ |
| Developer | Johns Hopkins Mobile medicine | Tom Fadial |
Customer experience
SafeLocal
Fractures
In-app purchases
SafeLocal
No in-app purchases
Fractures
No in-app purchases









