# Sherlock Performance AI vs PVMahjong Premium

The clearest difference is price: Sherlock Performance AI at Free against PVMahjong Premium's $0.99. Sherlock Performance AI also leads on rating (5.0 vs 2.0) and update cadence (every 2 weeks vs every 2 months). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Sherlock Performance AI is free to download; PVMahjong Premium costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sherlock Performance AI holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Sherlock Performance AI ships an update every 2 weeks, PVMahjong Premium every 2 months. The most recent releases landed on September 22, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Sherlock Performance AI | PVMahjong Premium |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sherlock-performance-ai/id1572941246/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/pvmahjong-premium/id6748535546/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | **Free** | Paid |
| Size | 133 MB | 12 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [XCalibrate](https://appshunter.io/developer/1572941248) | [Jianfeng Wu](https://appshunter.io/developer/1435210283) |

## What reviewers say

### Sherlock Performance AI

[App page](https://appshunter.io/ios/app/sherlock-performance-ai/id1572941246)

This AI-powered coaching app offers personalized development journeys for employees and managers. It utilizes generative AI and proven methods to foster growth, resilience, and performance. The platform also provides analytics for leaders and extensive learning resources.

**Highlights:** AI-powered personalized coaching journeys, Accelerated performance coaching, Transformative coaching for resilience and agility, Breakthrough coaching for daily challenges, AI analytics for workforce development, Extensive learning aids and resources, Enterprise-grade privacy and security

**In-app purchases:** none


### PVMahjong Premium

[App page](https://appshunter.io/ios/app/pvmahjong-premium/id6748535546)

Experience Mahjong without interruptions. This premium version offers all content unlocked for offline learning and casual play, including an unlimited practice mode.

**Highlights:** Ad-free experience, All content unlocked, Offline play, Unlimited practice mode, Casual gameplay

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

**In-app purchases:** none


## Frequently asked questions

### Is Sherlock Performance AI free?

Sherlock Performance AI is free to download, with no in-app purchases.

### Is PVMahjong Premium free?

PVMahjong Premium costs $0.99, with no in-app purchases.

### Which has better reviews, Sherlock Performance AI or PVMahjong Premium?

Sherlock Performance AI is rated higher. Sherlock Performance AI averages 5.0 out of 5 from 2 ratings, while PVMahjong Premium averages 2.0 from 1 ratings.

### Do Sherlock Performance AI or PVMahjong Premium have ads?

Neither Sherlock Performance AI nor PVMahjong Premium shows ads.

### Which is updated more often, Sherlock Performance AI or PVMahjong Premium?

Sherlock Performance AI ships an update every 2 weeks, and PVMahjong Premium every 2 months. Most recently, Sherlock Performance AI was updated on September 22, 2026 and PVMahjong Premium on September 11, 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.*