# AI Email Writer vs Fasti

The clearest difference is update cadence: Fasti at every 3 days against AI Email Writer's monthly. Fasti also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, ads and in-app purchases 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 and Fasti sells 10 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

AI Email Writer ships an update monthly, Fasti every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | AI Email Writer | Fasti |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Size | 6 MB | 81 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Phuc Pham](https://appshunter.io/developer/1893081423) | [Nathanael Essousse](https://appshunter.io/developer/6775917729) |

## What reviewers say

### 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 |


### Fasti

[App page](https://appshunter.io/ios/app/fasti-class-schedule/id6775917727)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fasti Plus Monthly | $4.99 | per month |
| Fasti Pro monthly | $9.99 | per month |
| Fasti Pro Quarterly | $24.99 | per 3 months |
| Fasti Plus (year) | $44.99 | per year |
| Fasti pro (yearly) | $89.99 | per year |
| Fasti Theme: Ramadan Lantern | $3.99 | one-time |
| Fasti Theme: Australia Day | $3.99 | one-time |
| Fasti Theme: Republic Day | $3.99 | one-time |
| Fasti Theme: Spain National Day | $3.99 | one-time |
| Fasti Upload Pack: 2 | $3.99 | one-time |


## Frequently asked questions

### Is AI Email Writer free?

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

### Is Fasti free?

Fasti is free to download, with in-app purchases available.

### Do AI Email Writer or Fasti have ads?

Neither AI Email Writer nor Fasti shows ads.

### Which is updated more often, AI Email Writer or Fasti?

AI Email Writer ships an update monthly, and Fasti every 3 days. Most recently, AI Email Writer was updated on October 31, 2026 and Fasti on October 31, 2026.

---

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