# Runestone Text Editor vs AI Prompt Developer

The clearest difference is price: Runestone Text Editor at Free against AI Prompt Developer's $1.99. Runestone Text Editor also leads on ratings volume (2K vs 4) and device support (4 vs 2). AI Prompt Developer's advantage is in-app purchases (none vs 1) and update cadence (every 2 days vs every 2 weeks). On ads there is nothing between them.

Runestone Text Editor is free to download; AI Prompt Developer costs $1.99 up front. Runestone Text Editor sells 1 one-off in-app purchase. AI Prompt Developer asks for nothing beyond the download.

AI Prompt Developer holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Runestone Text Editor has 2K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 76% of Runestone Text Editor's written reviews are positive against 100% of AI Prompt Developer's.

Runestone Text Editor ships an update every 2 weeks, AI Prompt Developer every 2 days. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Runestone Text Editor | AI Prompt Developer |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.7 (2K ratings)](https://appshunter.io/ios/app/runestone-text-editor/id1548193893/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/ai-prompt-developer/id6740031267/reviews)** |
| Number of ratings | **2K** | 4 |
| Positive reviews | 76.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | **#43** | #178 |
| Size | 64 MB | 3 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Simon B. Støvring](https://appshunter.io/developer/423532907) | [Manuel Streit](https://appshunter.io/developer/1713360640) |

## What reviewers say

### Runestone Text Editor

[App page](https://appshunter.io/ios/app/runestone-text-editor/id1548193893)

**Currently charting:** #43 Top Free · Developer Tools, #45 Top Grossing · Developer Tools (US App Store)

A powerful plain text and code editor for iPhone and iPad. Offers syntax highlighting, line numbers, find and replace, and extensive customization options for developers and writers.

**Highlights:** Syntax highlighting for many languages, Customizable themes and fonts, Advanced find and replace, Line numbers and cursor location, Code formatting with Prettier.js, Multiple windows on iPad

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $9.99 | one-time |

**What reviewers like**

- 💎 Excellent text editor
- 🚀 Smooth and responsive
- 🎨 Customizable themes and appearance
- 🔒 Secure file storage and sync
- 👍 Clean and intuitive interface

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔍 Difficulty navigating files/folders
- 📝 Limited functionality without premium
- 🔌 Performance issues on older devices
- 🔒 Difficulty accessing files in cloud storage

**Reported bugs**

- Disappearing files
- Difficulty pasting text
- Scroll position not saved
- Hangs on startup
- Trouble opening large files

**Requested features**

- Markdown preview
- Code folding
- Syntax highlighting for more languages
- Ability to run/execute code
- Multiple file/window support


### AI Prompt Developer

[App page](https://appshunter.io/ios/app/ai-prompt-developer/id6740031267)

**Currently charting:** #178 Top Paid · Developer Tools (US App Store)

Create and manage AI prompts with system instructions, role definitions, and file attachments. This tool offers real-time token, word, and character counts, and syncs across devices via iCloud. It's designed for developers and creatives to refine AI responses efficiently.

**Highlights:** System instructions, role definitions, file attachments, SwiftData + iCloud integration for cross-device sync, Attach multiple files to a single prompt, Streamlined interface for prompt management, Real-time token, word, and character counts, Mobile-friendly code snippet management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Runestone Text Editor free?

Runestone Text Editor is free to download, with in-app purchases available.

### Is AI Prompt Developer free?

AI Prompt Developer costs $1.99, with no in-app purchases.

### Which has better reviews, Runestone Text Editor or AI Prompt Developer?

AI Prompt Developer is rated higher. Runestone Text Editor averages 4.7 out of 5 from 2K ratings, while AI Prompt Developer averages 5.0 from 4 ratings.

### Do Runestone Text Editor or AI Prompt Developer have ads?

Neither Runestone Text Editor nor AI Prompt Developer shows ads.

### Which is updated more often, Runestone Text Editor or AI Prompt Developer?

Runestone Text Editor ships an update every 2 weeks, and AI Prompt Developer every 2 days. Most recently, Runestone Text Editor was updated on October 15, 2026 and AI Prompt Developer on October 6, 2026.

### Which is more popular, Runestone Text Editor or AI Prompt Developer?

Runestone Text Editor currently peaks at #43 in the App Store charts, and AI Prompt Developer at #178. Chart position reflects recent download velocity rather than total install base.

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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.*