# Prompts by E vs Synaplan AI Control

The clearest difference is update cadence: Synaplan AI Control at every 9 days against Prompts by E's every 2 months. Synaplan AI Control also leads on iOS requirement (15.0 vs 26.0). Prompts by E's advantage is ratings volume (5 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Prompts by E sells 1 in-app purchase, starting at $0.99 per month and Synaplan AI Control sells 3 in-app purchases, starting at $22.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Prompts by E against 5.0 for Synaplan AI Control. That said, the two scores are not equally well evidenced: Prompts by E has 5 ratings behind it against 1, so its average is the more settled of the two.

Prompts by E ships an update every 2 months, Synaplan AI Control every 9 days. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Prompts by E | Synaplan AI Control |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/prompts-by-e-string/id6450276417/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/synaplan-ai-control/id6784278288/reviews) |
| Number of ratings | **5** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 18 MB | 19 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [E-String Technologies, Inc.](https://appshunter.io/developer/294199643) | [metadist data management GmbH](https://appshunter.io/developer/1533970576) |

## 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 |


### Synaplan AI Control

[App page](https://appshunter.io/ios/app/synaplan-ai-control/id6784278288)

This AI assistant connects to multiple leading AI models and your personal knowledge base. Upload documents to chat with them, get answers grounded in your data, and generate images. Choose between cloud or self-hosted servers for privacy.

**Highlights:** Connect to multiple AI models, Chat with uploaded documents (RAG), Voice input, Image generation, Organize with knowledge folders, Private data handling, Self-hosted server option

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Access Monthly | $22.99 | per month |
| Team Access Monthly | $59.99 | per month |
| Business Access Monthly | $119.99 | per month |


## Frequently asked questions

### Is Prompts by E free?

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

### Is Synaplan AI Control free?

Synaplan AI Control is free to download, with in-app purchases available.

### Which has better reviews, Prompts by E or Synaplan AI Control?

Prompts by E and Synaplan AI Control are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.

### Do Prompts by E or Synaplan AI Control have ads?

Neither Prompts by E nor Synaplan AI Control shows ads.

### Which is updated more often, Prompts by E or Synaplan AI Control?

Prompts by E ships an update every 2 months, and Synaplan AI Control every 9 days. Most recently, Prompts by E was updated on October 10, 2026 and Synaplan AI Control on October 5, 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.*