Comparison

Kelvin TOP vs Prolius

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

Head to head
About

Kelvin TOP

Features
Read full description

Solve Problems and Investigate All Types of Incident. Based on the proven Kelvin TOP-SET Incident Investigation System, this App guides you through the step by step process and helps you quickly and effectively get to the real root causes of incidents and to make recommendations to prevent recurrence. Know what you are investigating – Write an accurate Incident Statement to give you and your team the right direction. Plan your investigation using the TOP-SET Indicators (T – Technology, O – Organisation, P – People, S – Similar Events & T – Time). Efficiently use resources to gather data related to your investigation. Investigate: Guide your investigation and use as a prompt / tool to ensure ‘nothing gets missed’. Advice is given at key stages to keep you on track. Analyse your Investigation findings using the TOP-SET Root Cause Analysis approach; with helpful tips to establish validity of your Immediate, Underlying and Root Causes. Report and Recommendations: Making evidence-based recommendations is an essential part of the Incident Investigation Process. Advice on how best to make these and what a good Incident Investigation Report should contain is given. The TOP-SET App designed ‘by Investigators for Investigators’ who have attended a Kelvin TOP-SET Course is an essential Incident Investigation Tool to keep with you always.

About

Prolius

Streamline fleet operations with a centralized management platform. Improve vehicle compliance, gain real-time data insights, and boost productivity while reducing paperwork and costs. Enhance safety with DVSA-compliant features.

Highlights
  • Centralized fleet management
  • Real-time data insights
  • Streamlined digital processes
  • Reduced paperwork and admin
  • Improved safety compliance
  • Cost reduction through efficiency
Features
Read full description

Seamlessly manage your fleet operations from a single centralised management platform. The Prolius Fleet Management system offers a fully integrated suite of modules for all classes of vehicles to improve vehicle compliance and fleet performance - providing a greater understanding of your fleet operations using real-time data. The Prolius app is designed to provide: Increase productivity Digitally streamline processes with our easy-to-use platform, saving time optimising workflows and increasing overall fleet productivity. Reduced paperwork Reduce unnecessary paperwork and save time on admin and manual tasks through the use of automated reports and workflows. Complete visibility Track all your assets and workflows to optimise your fleet and gain complete visibility across your entire fleet operations from a single place. Reduce costs Significantly reduce fleet operational costs by monitoring data insights and implementing measures to increase the efficiency of your fleet. Improve safety compliance Our DVSA-compliant system ensures the safety of your fleet through regular maintenance checks, audits and driver monitoring. Data insights Use real-time data to make more informed decisions, quicker and improve efficiency across your operations.

Screenshots

Kelvin TOP3 screens
Prolius4 screens

Verdict

The call

The clearest difference is update cadence: Prolius at every 6 weeks against Kelvin TOP's every 3 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Kelvin TOP ships an update every 3 months, Prolius every 6 weeks. The most recent releases landed on October 26, 2026 and November 4, 2026 respectively.

Scorecard1 real difference · 7 level
Kelvin TOP versus Prolius: the parameters behind the verdict, then further details
ParameterKelvin TOPProlius
PriceFreeFree
Positive reviews—0.0% of reviews
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.0 — better
Further details — not scored
Size45 MB56 MB
Age rating4+4+
DeveloperKelvinTOPSETProlius Limited

In-app purchases

None

Kelvin TOP

No in-app purchases

None

Prolius

No in-app purchases

Questions

Is Kelvin TOP free?
Kelvin TOP is free to download, with no in-app purchases.
Is Prolius free?
Prolius is free to download, with no in-app purchases.
Do Kelvin TOP or Prolius have ads?
Neither Kelvin TOP nor Prolius shows ads.
Which is updated more often, Kelvin TOP or Prolius?
Kelvin TOP ships an update every 3 months, and Prolius every 6 weeks. Most recently, Kelvin TOP was updated on October 26, 2026 and Prolius on November 4, 2026.

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