# LSSI vs Grind for Professionals

The clearest difference is in-app purchases: Grind for Professionals at none against LSSI's 10. Grind for Professionals also leads on update cadence (every 4 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. LSSI sells 8 in-app purchases, starting at $9.99 per month. Grind for Professionals asks for nothing beyond the download.

LSSI ships an update fortnightly, Grind for Professionals every 4 days. The most recent releases landed on September 3, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | LSSI | Grind for Professionals |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lssi/id1615149540/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 95 MB | 31 MB |
| Requires iOS | 15.5 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Lean Six Sigma Institute](https://appshunter.io/developer/1608279942) | [Bynaar Software Labs Private Limited](https://appshunter.io/developer/1795168047) |

## What reviewers say

### LSSI

[App page](https://appshunter.io/ios/app/lssi/id1615149540)

Connect with professionals globally, join groups, and participate in Master Classes. Access practical tools, guidelines, and courses, and discover job opportunities. Share your business case studies and enhance your professional development.

**Highlights:** Global professional networking, Join and create discussion groups, Participate in Master Classes, Access practical tools and guidelines, Read and share business case studies, Job opportunity search

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LSSI Pro Membership | $9.99 | per month |
| LSSI Premium Membership | $99.99 | per month |
| Lean Management Certification | $199.99 | one-time |
| LSS White Belt Certification | $199.99 | one-time |
| LSS Yellow Belt Certification | $499.99 | one-time |
| LSS Green Belt Certification | $699.99 | one-time |
| LSS Black Belt Certification | $799.99 | one-time |
| LSS Green Belt Certification | $799.99 | one-time |


### Grind for Professionals

[App page](https://appshunter.io/ios/app/grind-for-professionals/id6741702605)

**In-app purchases:** none


## Frequently asked questions

### Is LSSI free?

LSSI is free to download, with in-app purchases available.

### Is Grind for Professionals free?

Grind for Professionals is free to download, with no in-app purchases.

### Do LSSI or Grind for Professionals have ads?

Neither LSSI nor Grind for Professionals shows ads.

### Which is updated more often, LSSI or Grind for Professionals?

LSSI ships an update fortnightly, and Grind for Professionals every 4 days. Most recently, LSSI was updated on September 3, 2026 and Grind for Professionals on September 12, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*