# Promtify vs Expert Buffer Designer

The clearest difference is in-app purchases: Expert Buffer Designer at none against Promtify's 2. Expert Buffer Designer also leads on iOS requirement (13.0 vs 18.5). On price, ads and device support there is nothing between them.

Both are free to download. Promtify sells 2 in-app purchases, starting at $4.99 per month. Expert Buffer Designer asks for nothing beyond the download.

## The numbers

| Metric | Promtify | Expert Buffer Designer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/expert-buffer-designer/id6739745588/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | — |
| Monetization | — | Ad-supported |
| Size | 14 MB | 26 MB |
| Requires iOS | 18.5 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [HAMZA HARDOULI](https://appshunter.io/developer/1644917930) | [Bioprocess Tools LLC](https://appshunter.io/developer/1786829896) |

## What reviewers say

### Promtify

[App page](https://appshunter.io/ios/app/promtify-ai-prompt-generator/id6737990216)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Annual - Save 58% | $29.99 | per year |


### Expert Buffer Designer

[App page](https://appshunter.io/ios/app/expert-buffer-designer/id6739745588)

This application helps scientists and lab professionals design and analyze buffer solutions with a pH calculator and real-time feedback. It offers comprehensive buffer selection, variability analysis, and dynamic pH adjustment for precise results.

**Highlights:** Comprehensive buffer selection with sensitivity visualization, Instant variability analysis with heat map, Detailed compound and ion insights, Dynamic pH adjustment with real-time feedback, Personalized buffer library, Multi-platform availability (iOS, iPad, Mac)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Promtify free?

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

### Is Expert Buffer Designer free?

Expert Buffer Designer is free to download, with no in-app purchases.

### Do Promtify or Expert Buffer Designer have ads?

Both Promtify and Expert Buffer Designer show ads.

---

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