# OPTICHECK Flow Mobile vs I/E Bible

The clearest difference is rating: I/E Bible at 5.0 against OPTICHECK Flow Mobile's 4.0. On price, ratings volume, ads and in-app purchases there is nothing between them.

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

I/E Bible holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 5 respectively.

## The numbers

| Metric | OPTICHECK Flow Mobile | I/E Bible |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/opticheck-flow-mobile/id1476806101/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/ie-bible/id6761774585/reviews)** |
| Number of ratings | 2 | **5** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | Free |
| Size | 361 MB | 198 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KROHNE Messtechnik GmbH](https://appshunter.io/developer/1445655816) | [Oscar Corona](https://appshunter.io/developer/1891403709) |

## What reviewers say

### OPTICHECK Flow Mobile

[App page](https://appshunter.io/ios/app/opticheck-flow-mobile/id1476806101)

This utility app facilitates the wireless setup, verification, and ongoing monitoring of specific KROHNE flow meters. It enables secure Bluetooth® connectivity for device configuration and performance checks without interrupting ongoing measurements.

**Highlights:** Wireless device commissioning, Device parameterization via Bluetooth®, Verification without measurement interruption, Monitoring of meter performance, Monitoring of application parameters

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

**In-app purchases:** none


### I/E Bible

[App page](https://appshunter.io/ios/app/ie-bible/id6761774585)

This app provides a centralized hub for instrument calibration resources. It offers instant answers to process instrumentation questions through an integrated AI agent, streamlining calibration workflows.

**Highlights:** Instrument calibration resources, AI agent for process instrumentation, Instant answers to technical questions, Streamlined calibration workflows, Centralized resource hub

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OPTICHECK Flow Mobile free?

OPTICHECK Flow Mobile is free to download, with no in-app purchases.

### Is I/E Bible free?

I/E Bible is free to download, with no in-app purchases.

### Which has better reviews, OPTICHECK Flow Mobile or I/E Bible?

I/E Bible is rated higher. OPTICHECK Flow Mobile averages 4.0 out of 5 from 2 ratings, while I/E Bible averages 5.0 from 5 ratings.

### Do OPTICHECK Flow Mobile or I/E Bible have ads?

Neither OPTICHECK Flow Mobile nor I/E Bible 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.*