# E4 Flex vs Journal & Diary

The clearest difference is in-app purchases: E4 Flex at none against Journal & Diary's 1. E4 Flex also leads on rating (5.0 vs 4.8) and iOS requirement (13.1 vs 26.1). Journal & Diary's advantage is update cadence (fortnightly vs every 21 months) and ratings volume (22 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. Journal & Diary sells 1 in-app purchase, starting at $3.99 per month. E4 Flex asks for nothing beyond the download.

E4 Flex holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Journal & Diary has 22 ratings behind it against 1, so its average is the more settled of the two.

E4 Flex ships an update every 21 months, Journal & Diary fortnightly. The most recent releases landed on September 16, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | E4 Flex | Journal & Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/e4-flex/id1593079643/reviews)** | [4.8 (22 ratings)](https://appshunter.io/ios/app/journal-and-diary-memoiri/id6445867241/reviews) |
| Number of ratings | 1 | **22** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Fortnightly** |
| Monetization | **Free** | Freemium |
| Size | 1 MB | 31 MB |
| Requires iOS | **13.1** | 26.1 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Paul Hamel](https://appshunter.io/developer/1593079645) | [Mohammad Elzahaby](https://appshunter.io/developer/1287110591) |

## 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


### Journal & Diary

[App page](https://appshunter.io/ios/app/journal-and-diary-memoiri/id6445867241)

This app provides a simple and intuitive platform for daily journaling and mood tracking. Its minimalist design focuses on capturing memories without distractions, allowing users to easily record thoughts and monitor emotional patterns over time.

**Highlights:** Daily journaling with minimalist design, Automatic grouping of entries by date and time, Emoji-based mood tracking, Reflection on memories over time, Intuitive and polished user experience

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| memoiri+ | $3.99 | per month |


## Frequently asked questions

### Is E4 Flex free?

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

### Is Journal & Diary free?

Journal & Diary is free to download, with in-app purchases available.

### Which has better reviews, E4 Flex or Journal & Diary?

E4 Flex is rated higher. E4 Flex averages 5.0 out of 5 from 1 ratings, while Journal & Diary averages 4.8 from 22 ratings.

### Do E4 Flex or Journal & Diary have ads?

Neither E4 Flex nor Journal & Diary shows ads.

### Which is updated more often, E4 Flex or Journal & Diary?

E4 Flex ships an update every 21 months, and Journal & Diary fortnightly. Most recently, E4 Flex was updated on September 16, 2026 and Journal & Diary on September 23, 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.*