Comparison

Johne's Risk Assessor vs USDA PPRL

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

Head to head
About

Johne's Risk Assessor

Features
Read full description

The Johne's Risk Assessment and Management Plan (RAMP) is a nationally standardized system in the U.S. This app converts that same RAMP into a user friendly iPad app allowing easy, paperless, herd scoring and generation of a herd management plan. RAMP training is a component of the Johne's Certified Veterinarian program available at: https://ce.vetmed.wisc.edu/Johnes_Disease The purpose of the Johne's Risk Assessor app is to assist veterinarians and their clients with the implementation of a standard Risk Assessment and Management Plan (RAMP). The goal is to reduce or eliminate risks for the introduction and/or spread of Johne's disease. Implementation of management practices aimed at Johne's disease control will increase herd biosecurity and reduce the risk for transmission of other fecal-oral transmitted pathogens. Once inside the App, the user can select the Dairy version or the Beef cattle version. The app consists of seven tabbed views. These are ordered in a progressive manner. History = Herd information and history Calf = Calving to pre-wean Heifer = Post-wean to bred Heifer Adult/Replacement = Adults and replacements purchases Summary = Herd score distribution based on the six areas Recommendations = Recommendations for the herd based on the assessment PDF viewer = Easily viewed pdf of the risk assessment Herd assessment should proceed through the tabbed views starting with the History tab and stepping sequentially to the right. The stepwise process of performing the assessment will disclose a number of management choices that may be utilized to effectively reduce identified risks. The final content of the plan is ultimately the decision of the owner and the veterinarian and should support the owner's goals, reduce the impact of Johne's and other diseases, and include a testing scheme. The plan should be mindful of all health and management priorities and blend with ongoing biosecurity efforts.

About

USDA PPRL

This app helps livestock owners identify poisonous plants to prevent animal loss. It provides a searchable database of toxic flora and allows users to report livestock poisonings to the research lab.

Highlights
  • Identify poisonous plants
  • Searchable plant database
  • Prevent livestock loss
  • Report livestock poisonings
  • Awareness of toxic flora
Features
Read full description

The Poisonous Plant Research Lab App by USDA is aimed to help livestock owners (Ranchers) in preventing/minimizing the loss of their livestock by giving them awareness about poisonous plant. The app will allow a rancher to search for poisonous plants using the information provided in the Application via bulletin 415. Users will be able to contact PPRL to report their livestock poisoning.

Screenshots

USDA PPRL4 screens

Verdict

The call

The clearest difference is price: USDA PPRL at Free against Johne's Risk Assessor's $4.99. USDA PPRL also leads on update cadence (every 2 months vs every 9 months) and device support (3 vs 1). Johne's Risk Assessor's advantage is iOS requirement (12.1 vs 15.0). On ads and in-app purchases 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

USDA PPRL is free to download; Johne's Risk Assessor costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Johne's Risk Assessor ships an update every 9 months, USDA PPRL every 2 months. The most recent releases landed on September 28, 2026 and October 18, 2026 respectively.

Scorecard4 real differences · 6 level
Johne's Risk Assessor versus USDA PPRL: the parameters behind the verdict, then further details
ParameterJohne's Risk AssessorUSDA PPRL
Price$4.99Free — better
Rating—4.8 (4 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—4 — better
Update frequencyEvery 9 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPadiPhone, iPad, iPod — better
Requires iOS12.1 — better15.0
Further details — not scored
Size10 MB42 MB
Age rating12+17+
DeveloperUniversity of Wisconsin - Madison School of Veterinary MedicineUtah State University

In-app purchases

None

Johne's Risk Assessor

No in-app purchases

None

USDA PPRL

No in-app purchases

Questions

Is Johne's Risk Assessor free?
Johne's Risk Assessor costs $4.99, with no in-app purchases.
Is USDA PPRL free?
USDA PPRL is free to download, with no in-app purchases.
Do Johne's Risk Assessor or USDA PPRL have ads?
Neither Johne's Risk Assessor nor USDA PPRL shows ads.
Which is updated more often, Johne's Risk Assessor or USDA PPRL?
Johne's Risk Assessor ships an update every 9 months, and USDA PPRL every 2 months. Most recently, Johne's Risk Assessor was updated on September 28, 2026 and USDA PPRL on October 18, 2026.

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