Comparison

Rivvy vs Workup by RadAnalyzer

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

Head to head
About

Rivvy

Connect with other owners and enthusiasts of a specific electric vehicle brand. Track important vehicle details and discover more about your car. Engage in a community focused on shared interests.

Highlights
  • Vehicle detail tracking
  • Learn about your vehicle
  • Connect with other owners
  • Community interaction
  • Enthusiast engagement
Features
Read full description

Use Rivvy to track helpful details about your vehicle as well as learn more about it and interact with other owners and enthusiasts.

About

Workup by RadAnalyzer

This app provides AI-powered veterinary tools for cardiac assessment, kidney function prediction, and drug dosing. It includes clinical calculators, radiograph measurements, and client handouts, with offline access for drug information.

Highlights
  • AI-powered cardiac assessment
  • Kidney function prediction
  • Drug dose calculator (300+ drugs)
  • VHS/VLAS radiograph measurement
  • Clinical calculator suite
  • Client handouts (PDF export)
  • Dark mode support
Features
Read full description

Workup puts AI-powered cardiac assessment, kidney-function prediction, drug dosing, and the clinical calculators you reach for every day on your phone. Drug Dose Calculator — 300+ Drugs, Available Offline Search a built-in catalog of 300+ veterinary drugs with no connection needed — tablet, capsule, oral-liquid and injectable doses, mg/kg cross-checks, per-drug formulation memory, and sanity bounds on every result. VHS/VLAS — Peer-Reviewed Cardiac Measurement from a Radiograph Capture a lateral thoracic radiograph and Workup returns VHS (Vertebral Heart Score) and VLAS (Vertebral Left Atrial Size) values. The underlying algorithm has been peer-reviewed and published in PLOS ONE (2026, doi:10.1371/journal.pone.0337679). A landmark overlay on the final radiograph lets you verify every measurement, a 21-breed normal-range lookup tells you if a value is enlarged, and a quality tier tells you when confidence is high enough to act. Internet connection required. • Real-time point-of-photo session • Color-coded cardiac + vertebra landmarks on the final radiograph • Breed-specific normal range lookup (21 breeds included) • Quality tier indicator, separate from the score itself USG Predictor (Pilot) — Kidney Concentrating Ability from Bloodwork Enter five common values — patient age, BUN, creatinine, hemoglobin, and absolute lymphocytes — and a cloud-hosted model returns a prediction of adequate vs. inadequate urine concentrating ability, with explainable feature contributions so you see *why* it reached that answer. Internet connection required. A Full Clinical Calculator Suite Constant rate infusion (six drug presets), fluid therapy with shock-bolus ranges, chemo BSA dosing, transfusion volume, RER / feeding plans, HHS osmolality, and the Pro-Sal compensation model — plus an AHS-aligned Heartworm treatment protocol (class-aware, with a treatment calendar) and IRIS CKD staging (creatinine + SDMA, with proteinuria and blood-pressure substaging). Client Handouts Export a plain-language PDF of a VHS/VLAS or USG result — ready to hand to the owner at discharge. Dark Mode (NEW) System-aware light and dark theming across the entire app. Organization Access Clinics with a seat license can share Pro across the team by verifying their work email — no per-seat checkout. Pricing Workup Pro is an auto-renewing subscription, available weekly, monthly or annually, each starting with a 30-day free trial. The title, length and price of every option are shown in your local currency in the app before you purchase. Payment is charged to your Apple ID at confirmation of purchase and renews automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel in your Apple ID account settings. Have an access code from your organization? Redeem it in-app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://radanalyzer.com/privacy/ Workup is built for veterinary professionals. It is a clinical decision support tool, not a substitute for a full workup, physical exam, or clinician judgment.

Screenshots

Rivvy2 screens
Workup by RadAnalyzer4 screens

Verdict

The call

The clearest difference is review sentiment: Workup by RadAnalyzer at 100% against Rivvy's 0%. Workup by RadAnalyzer also leads on rating (5.0 vs 1.0) and ads (none vs shown). Rivvy's advantage is in-app purchases (none vs 3) and update cadence (every 2 weeks vs every 5 weeks). On price, device support and iOS requirement 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. Workup by RadAnalyzer sells 3 in-app purchases, starting at $2.99 per 7 days. Rivvy asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Workup by RadAnalyzer holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 0% of Rivvy's written reviews are positive against 100% of Workup by RadAnalyzer's.

UpkeepUpdate frequency

Rivvy ships an update every 2 weeks, Workup by RadAnalyzer every 5 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard7 real differences · 3 level
Rivvy versus Workup by RadAnalyzer: the parameters behind the verdict, then further details
ParameterRivvyWorkup by RadAnalyzer
PriceFreeFree
Rating1.0 (3 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings3 — better1
Update frequencyEvery 2 weeks — betterEvery 5 weeks
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.1
Further details — not scored
Size119 MB52 MB
Age rating4+17+
DeveloperNovvia LLCRadAnalyzer LLC

Customer experience

Rivvy

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Workup by RadAnalyzer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Rivvy

No in-app purchases

3 purchases

Workup by RadAnalyzer

Subscriptions3
  • Workup Pro (Weekly)1 Month trial$2.997 Days
  • Workup Pro (Monthly)1 Month trial$9.991 Month
  • Workup Pro (Annual)1 Month trial$99.991 Year

Questions

Is Rivvy free?
Rivvy is free to download, with no in-app purchases.
Is Workup by RadAnalyzer free?
Workup by RadAnalyzer is free to download, with in-app purchases available.
Which has better reviews, Rivvy or Workup by RadAnalyzer?
Workup by RadAnalyzer is rated higher. Rivvy averages 1.0 out of 5 from 3 ratings, while Workup by RadAnalyzer averages 5.0 from 1 ratings.
Do Rivvy or Workup by RadAnalyzer have ads?
Rivvy shows ads; Workup by RadAnalyzer does not.
Which is updated more often, Rivvy or Workup by RadAnalyzer?
Rivvy ships an update every 2 weeks, and Workup by RadAnalyzer every 5 weeks. Most recently, Rivvy was updated on November 3, 2026 and Workup by RadAnalyzer on November 5, 2026.

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