# PVChess Premium vs Lociform

The clearest difference is price: Lociform at Free against PVChess Premium's $0.99. PVChess Premium's advantage is in-app purchases (none vs 1) and iOS requirement (15.0 vs 26.0). On update cadence, ads and device support there is nothing between them.

Lociform is free to download; PVChess Premium costs $0.99 up front. Lociform sells 1 one-off in-app purchase. PVChess Premium asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 28, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | PVChess Premium | Lociform |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 16 MB | 21 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jianfeng Wu](https://appshunter.io/developer/1435210283) | [JOSHUA JOHN](https://appshunter.io/developer/6788074312) |

## What reviewers say

### PVChess Premium

[App page](https://appshunter.io/ios/app/pvchess-premium/id6751291936)

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

**In-app purchases:** none


### Lociform

[App page](https://appshunter.io/ios/app/lociform-memory-palace/id6800037106)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Palaces | $9.99 | one-time |


## Frequently asked questions

### Is PVChess Premium free?

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

### Is Lociform free?

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

### Do PVChess Premium or Lociform have ads?

Neither PVChess Premium nor Lociform shows ads.

### Which is updated more often, PVChess Premium or Lociform?

PVChess Premium ships an update every 2 months, and Lociform every 2 months. Most recently, PVChess Premium was updated on October 28, 2026 and Lociform on November 6, 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.*