# E4 Flex vs BLE Scan Pro

The clearest difference is rating: E4 Flex at 5.0 against BLE Scan Pro's 4.5. E4 Flex also leads on in-app purchases (none vs 3) and iOS requirement (13.1 vs 15.0). BLE Scan Pro's advantage is update cadence (fortnightly vs every 21 months) and ratings volume (8 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. BLE Scan Pro sells 3 in-app purchases, starting at $0.99 per 7 days. E4 Flex asks for nothing beyond the download.

E4 Flex holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: BLE Scan Pro has 8 ratings behind it against 1, so its average is the more settled of the two.

E4 Flex ships an update every 21 months, BLE Scan Pro fortnightly. The most recent releases landed on October 3, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | E4 Flex | BLE Scan Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/e4-flex/id1593079643/reviews)** | [4.5 (8 ratings)](https://appshunter.io/ios/app/ble-scan-pro/id1671172913/reviews) |
| Number of ratings | 1 | **8** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 12 MB |
| Requires iOS | **13.1** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Paul Hamel](https://appshunter.io/developer/1593079645) | [Spyridon Bousios](https://appshunter.io/developer/1168309944) |

## 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


### BLE Scan Pro

[App page](https://appshunter.io/ios/app/ble-scan-pro/id1671172913)

Easily scan and identify Bluetooth Low Energy devices nearby. Track their signal strength and discover hidden devices. Organize your frequently used devices for quick access.

**Highlights:** Scan BLE devices, Check device distance, Discover hidden devices, Add favorite devices, Accurate signal calculation

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $0.99 | per 7 days |
| Monthly Pro | $2.99 | per month |
| Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is E4 Flex free?

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

### Is BLE Scan Pro free?

BLE Scan Pro is free to download, with in-app purchases available.

### Which has better reviews, E4 Flex or BLE Scan Pro?

E4 Flex is rated higher. E4 Flex averages 5.0 out of 5 from 1 ratings, while BLE Scan Pro averages 4.5 from 8 ratings.

### Do E4 Flex or BLE Scan Pro have ads?

Neither E4 Flex nor BLE Scan Pro shows ads.

### Which is updated more often, E4 Flex or BLE Scan Pro?

E4 Flex ships an update every 21 months, and BLE Scan Pro fortnightly. Most recently, E4 Flex was updated on October 3, 2026 and BLE Scan Pro on October 17, 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.*