# IGM Surfaces vs StonesErp

IGM Surfaces and StonesErp are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

IGM Surfaces ships an update every 6 weeks, StonesErp monthly. Both last shipped on October 27, 2026.

## The numbers

| Metric | IGM Surfaces | StonesErp |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | — | Free |
| Size | 67 MB | 79 MB |
| Requires iOS | 13 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Covetus](https://appshunter.io/developer/1041998644) | [Shubank Jain](https://appshunter.io/developer/1357066494) |

## What reviewers say

### IGM Surfaces

[App page](https://appshunter.io/ios/app/igm-surfaces/id1511126501)

**Features:** macOS Compatibility

**In-app purchases:** none


### StonesErp

[App page](https://appshunter.io/ios/app/stoneserp/id1604193312)

Discover live inventory of natural stone globally without travel. Connect with suppliers and buyers, find premium stocks, and access market data. Streamline your stone sourcing and sales process with this modern business tool.

**Highlights:** Discover live natural stone inventory worldwide, Connect with miners, manufacturers, and traders, Access premium and deal of the month stocks, 24/7 buyer and seller connections, View product analytics and demand data, Global sourcing without travel

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IGM Surfaces free?

IGM Surfaces is free to download, with no in-app purchases.

### Is StonesErp free?

StonesErp is free to download, with no in-app purchases.

### Do IGM Surfaces or StonesErp have ads?

Neither IGM Surfaces nor StonesErp shows ads.

### Which is updated more often, IGM Surfaces or StonesErp?

IGM Surfaces ships an update every 6 weeks, and StonesErp monthly. Most recently, IGM Surfaces was updated on October 27, 2026 and StonesErp on October 27, 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.*