# Mereo vs InventoryPD3+

The clearest difference is update cadence: Mereo at fortnightly against InventoryPD3+'s every 2 months. 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.

Mereo ships an update fortnightly, InventoryPD3+ every 2 months. The most recent releases landed on September 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Mereo | InventoryPD3+ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Size | 25 MB | 33 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mereo Tech LTDA](https://appshunter.io/developer/1376569156) | [Silimed Industria de Implantes Ltda](https://appshunter.io/developer/1530042500) |

## What reviewers say

### Mereo

[App page](https://appshunter.io/ios/app/mereo/id1423103748)

**In-app purchases:** none


### InventoryPD3+

[App page](https://appshunter.io/ios/app/inventorypd3-plus/id6738705499)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mereo free?

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

### Is InventoryPD3+ free?

InventoryPD3+ is free to download, with no in-app purchases.

### Do Mereo or InventoryPD3+ have ads?

Neither Mereo nor InventoryPD3+ shows ads.

### Which is updated more often, Mereo or InventoryPD3+?

Mereo ships an update fortnightly, and InventoryPD3+ every 2 months. Most recently, Mereo was updated on September 10, 2026 and InventoryPD3+ on October 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.*