# Slab Estimate vs Prime9 Group

The clearest difference is iOS requirement: Slab Estimate at 13.0 against Prime9 Group's 16.0. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | Slab Estimate | Prime9 Group |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Size | 60 MB | 94 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aasma Technology Solutions](https://appshunter.io/developer/1711647513) | [MaramiInfotech](https://appshunter.io/developer/1475880307) |

## What reviewers say

### Slab Estimate

[App page](https://appshunter.io/ios/app/slab-estimate/id6476886840)

**Features:** macOS Compatibility

**In-app purchases:** none


### Prime9 Group

[App page](https://appshunter.io/ios/app/prime9-group/id6754444774)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Slab Estimate free?

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

### Is Prime9 Group free?

Prime9 Group is free to download, with no in-app purchases.

### Do Slab Estimate or Prime9 Group have ads?

Neither Slab Estimate nor Prime9 Group shows ads.

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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.*