Comparison

Opus App vs Lean Management Toolbox

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

Head to head
About

Opus App

Features
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Opus App is a simple and powerful Hub for managing all Flight and maintenance related details. Opus main strengths: 1. User Friendly Opus is designed in very close cooperation with the users, so the result is a product that is simple, clean and intutive, this reduces the risk of user errors. 2. One integrated system With Opus you will have one integrated system that has all features needed to control and manage your Flight maintenance requirements. You can access and manage multiple locations with Opus. There is no need to run parallel systems or rely on Excel spreadsheets. 3.Return on Investment The Opus reduces time waste, inventory and duplication. Its intuitive structure and interfaces ensure that it becomes the hub for information and processes. Opus main features: - Schedule Schedule repetitive tasks based on counters or flexible calendar schedules - Issue Issue and document unscheduled tasks performed on components. - Workflow Get a full workflow for reporting and track fixing of faults in production. - View View activation/deactivation logs for components. - Spare parts Handle purchasing of spare-parts. - Ordering Have flexible ordering of non-stock items - Track parts Track parts receiving and backordered items. - Scan Scan received invoices and send for electronic acknowledgement - Barcodes Tag all parts with barcodes. - Control stock Control stock balance with wireless barcode reader. - Linking Link parts on stock to machines with spare part lists. - Reordering Use clever re-ordering based on suppliers and minimum stock levels. - Delegate tasks Delegate tasks to departments and/or specific staff.

About

Lean Management Toolbox

Enhance workplace productivity and meeting efficiency with comprehensive audit tools. Identify areas for improvement, manage tasks with a Kanban board, and track progress through detailed reports. Optimize your organization's operations and reduce waste.

Highlights
  • 5S/6S Audit Checklist
  • Location and Area Management
  • Kanban Task Management
  • Audit Reports
  • Meeting Efficiency Audit
  • Meeting Cost Counter
Features
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GoLeanSigma – Lean Management Toolbox helps you to make your Lean Management journey even more efficient. Increase workplace productivity in all departments with 5S or 6S Audits. Or improve your meetings` efficiency with a meeting audit and tips for continuous improvement. Measure meeting costs and save money. Pin-point areas of your organization that needs improvement through our reports. See the progress from audit to audit with a fully-fledged cockpit and monitoring feature. Features: Lean 5S / 6S audit: - our easy-to-use and effective built-in lean 6S audit checklist is ready for your audits and inspections. - audits in admin, operations, and laboratory environments to improve workplace efficiency Location and Area Management: - divide your organization into multiple locations and areas to easily manage your tasks and audits. Tasks management: - generate tasks from your audit results and manage your task using the GoLeanSigma built-in Kanban board. Reports: - generate reports based on your audits and inspections to track your progress. Meeting Audit - improve the organization from within with increase meting efficiency - pin-point weaknesses and waste of resources in meeting structures Meeting Cost Counter - make meeting costs transparent as a baseline for improvements Terms of use: https://www.goleansigma.de/en-pages/terms-and-conditions

Screenshots

Opus App3 screens
Lean Management Toolbox4 screens

Verdict

The call

The clearest difference is in-app purchases: Opus App at none against Lean Management Toolbox's 2. Opus App also leads on iOS requirement (9.0 vs 13.0). On price, update cadence, 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. Lean Management Toolbox sells 2 in-app purchases, starting at $5.99 per month. Opus App asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 7, 2026 and September 27, 2026 respectively.

Scorecard2 real differences · 8 level
Opus App versus Lean Management Toolbox: the parameters behind the verdict, then further details
ParameterOpus AppLean Management Toolbox
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better13.0
Further details — not scored
Size155 MB89 MB
Age rating4+17+
DeveloperLUNDIN SOFTWARE SRLDenny Hartmann

In-app purchases

None

Opus App

No in-app purchases

2 purchases

Lean Management Toolbox

Subscriptions2
  • Premium Access - Monthly$5.991 Month
  • Premium Access - Yearly$59.991 Year

Questions

Is Opus App free?
Opus App is free to download, with no in-app purchases.
Is Lean Management Toolbox free?
Lean Management Toolbox is free to download, with in-app purchases available.
Do Opus App or Lean Management Toolbox have ads?
Neither Opus App nor Lean Management Toolbox shows ads.
Which is updated more often, Opus App or Lean Management Toolbox?
Opus App ships an update every 2 months, and Lean Management Toolbox every 2 months. Most recently, Opus App was updated on October 7, 2026 and Lean Management Toolbox on September 27, 2026.

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