# optrel vs RIB FM Inventory

The clearest difference is update cadence: optrel at every 6 months against RIB FM Inventory's every 50 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.

optrel ships an update every 6 months, RIB FM Inventory every 50 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | optrel | RIB FM Inventory |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 50 months |
| Size | 207 MB | 31 MB |
| Requires iOS | 12.2 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [optrel tec ag](https://appshunter.io/developer/1549530923) | [RIB IMS GmbH](https://appshunter.io/developer/842546644) |

## What reviewers say

### optrel

[App page](https://appshunter.io/ios/app/optrel/id1549530921)

**Features:** macOS Compatibility

**In-app purchases:** none


### RIB FM Inventory

[App page](https://appshunter.io/ios/app/rib-fm-inventory/id1578278950)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is optrel free?

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

### Is RIB FM Inventory free?

RIB FM Inventory is free to download, with no in-app purchases.

### Do optrel or RIB FM Inventory have ads?

Neither optrel nor RIB FM Inventory shows ads.

### Which is updated more often, optrel or RIB FM Inventory?

optrel ships an update every 6 months, and RIB FM Inventory every 50 months. Most recently, optrel was updated on October 27, 2026 and RIB FM Inventory on October 25, 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.*