# PromptCodex vs Echo

The clearest difference is update cadence: Echo at weekly against PromptCodex's every 2 months. Echo also leads on iOS requirement (15.1 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PromptCodex sells 2 in-app purchases, starting at $2.99 per month and Echo sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

PromptCodex ships an update every 2 months, Echo weekly. The most recent releases landed on October 16, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | PromptCodex | Echo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/promptcodex-ai-library/id6763639533/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 75 MB | 52 MB |
| Requires iOS | 26.2 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Life Utility Apps, LLC](https://appshunter.io/developer/1721977600) | [Khaled Almare](https://appshunter.io/developer/1895344294) |

## What reviewers say

### PromptCodex

[App page](https://appshunter.io/ios/app/promptcodex-ai-library/id6763639533)

Manage and reuse AI prompts for various language models in a structured library. Create dynamic prompts with variables, save variants, and track usage. All data remains on your device for enhanced privacy.

**Highlights:** Organize prompts with folders, categories, and tags, Create dynamic prompts with placeholders, Save and compare prompt variants, Browse and import curated sample prompts, Track prompt copy counts and usage, Offline functionality and device-only data storage, Secure with Face ID/Touch ID

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Lifetime Access | $14.99 | one-time |


### Echo

[App page](https://appshunter.io/ios/app/echo-ai-prompt-library/id6783035728)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Echo Premium | $4.99 | per month |
| Echo Premium | $49.99 | per year |


## Frequently asked questions

### Is PromptCodex free?

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

### Is Echo free?

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

### Do PromptCodex or Echo have ads?

Neither PromptCodex nor Echo shows ads.

### Which is updated more often, PromptCodex or Echo?

PromptCodex ships an update every 2 months, and Echo weekly. Most recently, PromptCodex was updated on October 16, 2026 and Echo on October 23, 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.*