Comparison

Arthro Diagnostics vs Martha

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Arthro Diagnostics

Features
Read full description

Arthro Diagnostics is a professional clinical application designed to support veterinarians in the diagnosis and monitoring of equine joint health through advanced biomarker analysis of synovial fluid. The app streamlines the entire diagnostic workflow, from sample registration to result interpretation, enabling efficient, traceable, and evidence-based clinical decision-making.

About

Martha

Get instant, cited answers to common vascular access questions from a virtual clinical nurse specialist. This app provides practical guidance on device selection, medication compatibility, and best practices, grounded in current standards and literature. It's designed for nurses working independently, offering clear, actionable advice.

Highlights
  • Ask vascular access questions
  • Cited answers from standards
  • Device selection guidance
  • Medication compatibility info
  • Occlusion and resistance troubleshooting
  • CLABSI prevention advice
  • Scope-of-practice clarification
Features
Read full description

Martha is a vascular access clinical nurse specialist you can ask at the bedside. Built by Vascular Access & Consulting — a mobile team that places PICCs, midlines and ultrasound-guided IVs in skilled nursing, long-term care and home settings every day — Martha answers the questions nurses actually face, grounded in the published standards and cited. ASK HER ANYTHING VASCULAR • Device selection: midline vs PICC vs peripheral IV, and why • Medication compatibility: pH, osmolarity, vesicant status • Occlusions, resistance, no blood return — what to do and what never to do • CLABSI prevention, hub scrub, dressing changes, ANTT • PICC in CKD: eGFR, vein preservation, KDOQI and Fistula First • MAGIC criteria and where the evidence has moved since 2015 • Scope-of-practice questions (RN vs LPN/LVN) — and when to check your state act GROUNDED, NOT GENERIC Martha's answers draw on the INS Infusion Therapy Standards of Practice (9th ed., 2024), MAGIC, CDC CLABSI-prevention guidance, NKF KDOQI, and the contemporary midline literature — with the citation, so you can look it up and bring it to your team. BUILT FOR A NURSE WORKING ALONE Lead with the answer, then the "why." Practical steps you can act on now, clear flags when something is unsafe, and a plain "stop and call the provider" when that is the right move. PRIVATE BY DESIGN No account. No sign-in. Your questions and Martha's answers are stored only on your device. We never store chat transcripts on our servers. Do not enter patient identifiers or PHI. FREE TO TRY Ask 3 questions free. Then choose a paid plan for up to 100 questions per calendar month. Standard auto-renewing plans are $24.99/month or $199.99/year. Eligible new US subscribers may receive $7.99/month for the first three months, then $24.99/month. A separate $18 three-calendar-month pass does not renew automatically. Prices and eligibility are shown before purchase. Billed through your Apple ID. Manage auto-renewing subscriptions in Settings. Martha provides educational information for licensed clinicians and students. She is not a substitute for clinical judgment, a provider's orders, or your facility's policies, which always control. Terms of Use: https://vaceducation.com/martha/terms Privacy Policy: https://vaceducation.com/martha/privacy

Screenshots

Arthro Diagnostics3 screens
Martha4 screens

Verdict

The call

The clearest difference is in-app purchases: Arthro Diagnostics at none against Martha's 2. Martha's advantage is update cadence (every 2 weeks vs every 4 months) and iOS requirement (16.4 vs 18.6). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Martha sells 2 in-app purchases, starting at $24.99 per month. Arthro Diagnostics asks for nothing beyond the download.

UpkeepUpdate frequency

Arthro Diagnostics ships an update every 4 months, Martha every 2 weeks. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
Arthro Diagnostics versus Martha: the parameters behind the verdict, then further details
ParameterArthro DiagnosticsMartha
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhoneiPhone, iPad — better
Requires iOS18.616.4 — better
Further details — not scored
Size1 MB45 MB
Age rating17+12+
DeveloperRedpill Linpro ABVASCULAR ACCESS & CONSULTING LLC

In-app purchases

None

Arthro Diagnostics

No in-app purchases

2 purchases

Martha

Subscriptions2
  • Monthly$24.991 Month
  • Annual$199.991 Year

Questions

Is Arthro Diagnostics free?
Arthro Diagnostics is free to download, with no in-app purchases.
Is Martha free?
Martha is free to download, with in-app purchases available.
Do Arthro Diagnostics or Martha have ads?
Neither Arthro Diagnostics nor Martha shows ads.
Which is updated more often, Arthro Diagnostics or Martha?
Arthro Diagnostics ships an update every 4 months, and Martha every 2 weeks. Most recently, Arthro Diagnostics was updated on November 9, 2026 and Martha on November 6, 2026.

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