# Refuel Log vs AI Email Assistant Write & Fix

The clearest difference is in-app purchases: Refuel Log at none against AI Email Assistant Write & Fix's 1. Refuel Log also leads on ads (none vs shown). AI Email Assistant Write & Fix's advantage is update cadence (every 3 days vs every 2 months) and iOS requirement (15.0 vs 18.0). On price and device support there is nothing between them.

Both are free to download. AI Email Assistant Write & Fix sells 1 one-off in-app purchase. Refuel Log asks for nothing beyond the download.

Refuel Log ships an update every 2 months, AI Email Assistant Write & Fix every 3 days. The most recent releases landed on October 27, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Refuel Log | AI Email Assistant Write & Fix |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 4 MB | 40 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Florian Toenz](https://appshunter.io/developer/1598410220) | [Muhammad Asad Arman](https://appshunter.io/developer/1487950157) |

## What reviewers say

### Refuel Log

[App page](https://appshunter.io/ios/app/refuel-log/id1598410218)

**In-app purchases:** none


### AI Email Assistant Write & Fix

[App page](https://appshunter.io/ios/app/ai-email-assistant-write-and-fix/id6753785167)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Refuel Log free?

Refuel Log is free to download, with no in-app purchases.

### Is AI Email Assistant Write & Fix free?

AI Email Assistant Write & Fix is free to download, with in-app purchases available.

### Do Refuel Log or AI Email Assistant Write & Fix have ads?

AI Email Assistant Write & Fix shows ads; Refuel Log does not.

### Which is updated more often, Refuel Log or AI Email Assistant Write & Fix?

Refuel Log ships an update every 2 months, and AI Email Assistant Write & Fix every 3 days. Most recently, Refuel Log was updated on October 27, 2026 and AI Email Assistant Write & Fix on October 15, 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.*