# Rezolv Field App vs AI Email Writer

The clearest difference is in-app purchases: Rezolv Field App at none against AI Email Writer's 3. Rezolv Field App also leads on iOS requirement (16.0 vs 18.0). AI Email Writer's advantage is update cadence (monthly vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. AI Email Writer sells 3 in-app purchases, starting at $4.99 per 7 days. Rezolv Field App asks for nothing beyond the download.

Rezolv Field App ships an update every 3 months, AI Email Writer monthly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Rezolv Field App | AI Email Writer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Size | 90 MB | 6 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Rezolv AI Technology Solutions Private Limited](https://appshunter.io/developer/1826055190) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### Rezolv Field App

[App page](https://appshunter.io/ios/app/rezolv-field-app/id6748522043)

**Features:** macOS Compatibility

**In-app purchases:** none


### AI Email Writer

[App page](https://appshunter.io/ios/app/ai-email-writer-smart-reply/id6767789113)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Annual Premium | $24.99 | per year |
| Lifetime Premium | $49.99 | one-time |


## Frequently asked questions

### Is Rezolv Field App free?

Rezolv Field App is free to download, with no in-app purchases.

### Is AI Email Writer free?

AI Email Writer is free to download, with in-app purchases available.

### Do Rezolv Field App or AI Email Writer have ads?

Neither Rezolv Field App nor AI Email Writer shows ads.

### Which is updated more often, Rezolv Field App or AI Email Writer?

Rezolv Field App ships an update every 3 months, and AI Email Writer monthly. Most recently, Rezolv Field App was updated on October 30, 2026 and AI Email Writer on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*