# Prompts by E vs AI Prompt Modifier

The clearest difference is in-app purchases: AI Prompt Modifier at none against Prompts by E's 1. AI Prompt Modifier also leads on device support (4 vs 2) and iOS requirement (15.0 vs 26.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Prompts by E sells 1 in-app purchase, starting at $0.99 per month. AI Prompt Modifier asks for nothing beyond the download.

Prompts by E ships an update every 2 months, AI Prompt Modifier monthly. The most recent releases landed on June 24, 2026 and August 28, 2026 respectively.

## The numbers

| Metric | Prompts by E | AI Prompt Modifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/prompts-by-e-string/id6450276417/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 4 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [E-String Technologies, Inc.](https://appshunter.io/developer/294199643) | [Windmillcode LLC](https://appshunter.io/developer/1755065554) |

## What reviewers say

### Prompts by E

[App page](https://appshunter.io/ios/app/prompts-by-e-string/id6450276417)

This app helps you create, manage, and use AI prompt templates. It generates easy-to-fill forms for your prompts and copies the final output to your clipboard for use in other generative AI applications.

**Highlights:** Create and manage prompt templates, Generate easy-to-fill forms for prompts, Copy generated prompts to clipboard, Use with generative AI apps, Intuitive interface

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Prompts Pro Monthly | $0.99 | per month |


### AI Prompt Modifier

[App page](https://appshunter.io/ios/app/ai-prompt-modifier/id6736705362)

**Features:** Safari Extension

**In-app purchases:** none


## Frequently asked questions

### Is Prompts by E free?

Prompts by E is free to download, with in-app purchases available.

### Is AI Prompt Modifier free?

AI Prompt Modifier is free to download, with no in-app purchases.

### Do Prompts by E or AI Prompt Modifier have ads?

Neither Prompts by E nor AI Prompt Modifier shows ads.

### Which is updated more often, Prompts by E or AI Prompt Modifier?

Prompts by E ships an update every 2 months, and AI Prompt Modifier monthly. Most recently, Prompts by E was updated on June 24, 2026 and AI Prompt Modifier on August 28, 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.*