Lean Management Toolbox vs Frequency Generator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 5S/6S Audit Checklist
- Location and Area Management
- Kanban Task Management
- Audit Reports
- Meeting Efficiency Audit
- Meeting Cost Counter
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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
Frequency Generator
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Make sound part of your daily routine. With Sona, you can fall asleep faster, focus deeper, relax easier, or meditate longer—using science-inspired binaural beats you can fully customize, layered with immersive ambient sounds. Highlights • 4 modes: Sleep, Focus, Relax, Meditate — each with curated starter presets. • Binaural beats: Pick the beat frequency (e.g., 2–40 Hz) for your goal. Best experienced with stereo headphones. • Full frequency control: Choose Alpha, Beta, Delta, Gamma, SMR (≈12–15 Hz) or type any custom value. • Ambience mixer: Rain, forest, fire, ocean, wind, pink noise, and more — blend your perfect soundscape. • Background + Lock Screen: Keep playing with the screen off and control from the Lock Screen. • Timer: Set your session length; Sona stops automatically. • Clean, distraction-free design: Create, save, and reuse your favorite sessions in seconds. Brainwave primer • Delta (~0.5–4 Hz): Deep sleep and recovery • Theta (~4–8 Hz): Creativity and deep relaxation • Alpha (~8–12 Hz): Calm wakefulness • SMR (~12–15 Hz): Smooth, steady focus • Beta (~15–30 Hz): Active thinking and energy • Gamma (~30–40 Hz): Learning and integrative attention Tips • Use stereo headphones for binaural beats. • Start at a low volume and adjust gradually. • Pick a mode for your goal; fine-tune the beat frequency in small steps. Important Sona is not a medical device and does not diagnose or treat any condition. Do not use while driving or performing tasks that require full attention. Craft your sound universe with Sona — and gently guide your mind toward what you want to feel. Auto-Renewable Subscription Terms: • The payment will be charged to your Apple ID Account at confirmation of purchase. • The subscription renews automatically unless the auto-renew is turned off at least 24 hours before the end of the current billing period. • Your account will be charged for renewal within 24 hours before the end of your selected subscription. • Your subscriptions can be managed, and auto-renewal can be turned off by going to your App Store Account Settings. Terms: https://eatkdevtermsofuse.carrd.co
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Verdict
The clearest difference is update cadence: Frequency Generator at every 3 weeks against Lean Management Toolbox's every 2 months. Lean Management Toolbox's advantage is iOS requirement (13.0 vs 18.6). 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
Both are free to download. Lean Management Toolbox sells 2 in-app purchases, starting at $5.99 per month and Frequency Generator sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Lean Management Toolbox ships an update every 2 months, Frequency Generator every 3 weeks. The most recent releases landed on September 27, 2026 and September 25, 2026 respectively.
| Parameter | Lean Management Toolbox | Frequency Generator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 89 MB | 282 MB |
| Age rating | 17+ | 4+ |
| Developer | Denny Hartmann | Emre Atik |
In-app purchases
Lean Management Toolbox
- Premium Access - Monthly$5.991 Month
- Premium Access - Yearly$59.991 Year
Frequency Generator
- 3 Days Free Trial Weekly PRO3 Days trial$3.997 Days
- Sona Annual PRO$19.991 Year
Questions
Is Lean Management Toolbox free?
Is Frequency Generator free?
Do Lean Management Toolbox or Frequency Generator have ads?
Which is updated more often, Lean Management Toolbox or Frequency Generator?
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