# E4 Flex vs Turing Lite

The clearest difference is update cadence: Turing Lite at every 11 days against E4 Flex's every 21 months. Turing Lite also leads on iOS requirement (8.0 vs 13.1). 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.

E4 Flex ships an update every 21 months, Turing Lite every 11 days. The most recent releases landed on October 3, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | E4 Flex | Turing Lite |
| --- | --- | --- |
| 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 11 days** |
| Monetization | Free | — |
| Size | 1 MB | 104 MB |
| Requires iOS | 13.1 | **8.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Paul Hamel](https://appshunter.io/developer/1593079645) | [Turing Video](https://appshunter.io/developer/1223239956) |

## 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


### Turing Lite

[App page](https://appshunter.io/ios/app/turing-lite/id6480281299)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is E4 Flex free?

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

### Is Turing Lite free?

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

### Do E4 Flex or Turing Lite have ads?

Neither E4 Flex nor Turing Lite shows ads.

### Which is updated more often, E4 Flex or Turing Lite?

E4 Flex ships an update every 21 months, and Turing Lite every 11 days. Most recently, E4 Flex was updated on October 3, 2026 and Turing Lite on October 13, 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.*