# E4 Flex vs Telerik .NET MAUI CryptoTrack

The clearest difference is device support: Telerik .NET MAUI CryptoTrack at 4 against E4 Flex's 2. On price, update cadence, 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.

E4 Flex ships an update every 21 months, Telerik .NET MAUI CryptoTrack every 25 months. The most recent releases landed on October 20, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | E4 Flex | Telerik .NET MAUI CryptoTrack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/e4-flex/id1593079643/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 21 months** | Every 25 months |
| Monetization | Free | — |
| Size | 1 MB | 112 MB |
| Requires iOS | 13.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Paul Hamel](https://appshunter.io/developer/1593079645) | [Progress Software Corporation](https://appshunter.io/developer/530958679) |

## What reviewers say

### E4 Flex

[App page](https://appshunter.io/ios/app/e4-flex/id1593079643)

This app enables field technicians to connect to and manage E4 Flex readers via Bluetooth Low Energy. It allows for sending commands and receiving responses, facilitating configuration and testing of the readers.

**Highlights:** Connect to E4 Flex readers via BLE, Send commands to readers, Receive responses from readers, Configure E4 Flex readers, Test E4 Flex readers

**In-app purchases:** none


### Telerik .NET MAUI CryptoTrack

[App page](https://appshunter.io/ios/app/telerik-net-maui-cryptotrack/id1624496233)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is E4 Flex free?

E4 Flex is free to download, with no in-app purchases.

### Is Telerik .NET MAUI CryptoTrack free?

Telerik .NET MAUI CryptoTrack is free to download, with no in-app purchases.

### Do E4 Flex or Telerik .NET MAUI CryptoTrack have ads?

Neither E4 Flex nor Telerik .NET MAUI CryptoTrack shows ads.

### Which is updated more often, E4 Flex or Telerik .NET MAUI CryptoTrack?

E4 Flex ships an update every 21 months, and Telerik .NET MAUI CryptoTrack every 25 months. Most recently, E4 Flex was updated on October 20, 2026 and Telerik .NET MAUI CryptoTrack on October 18, 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.*