# SimpleSign vs Luma Dream Machine

The clearest difference is review sentiment: SimpleSign at 100% against Luma Dream Machine's 33%. SimpleSign also leads on rating (5.0 vs 4.5) and in-app purchases (none vs 7). Luma Dream Machine's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 9 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Luma Dream Machine sells 7 in-app purchases, starting at $9.99 per month. SimpleSign asks for nothing beyond the download.

SimpleSign holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Luma Dream Machine has 1.8K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of SimpleSign's written reviews are positive against 33% of Luma Dream Machine's.

SimpleSign ships an update every 9 months, Luma Dream Machine every 3 weeks. The most recent releases landed on October 2, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | SimpleSign | Luma Dream Machine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/simplesign/id642379481/reviews)** | [4.5 (1.8K ratings)](https://appshunter.io/ios/app/luma-dream-machine/id6478852867/reviews) |
| Number of ratings | 4 | **1.8K** |
| Positive reviews | **100.0% of reviews** | 33.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 4 MB | 72 MB |
| Requires iOS | 17.5 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [idota limited](https://appshunter.io/developer/463418304) | [Luma AI, Inc.](https://appshunter.io/developer/1615849916) |

## What reviewers say

### SimpleSign

[App page](https://appshunter.io/ios/app/simplesign/id642379481)

This app displays large characters and words full screen with customizable fonts and colors. It supports sliding animations for long sentences, making it useful for various situations like displaying quiz answers or messages from a distance.

**Highlights:** Full-screen character and word display, Customizable font types and colors, Sliding animation for long sentences, Useful for quizzes and distant communication, Acts as a digital signboard substitute

**In-app purchases:** none


### Luma Dream Machine

[App page](https://appshunter.io/ios/app/luma-dream-machine/id6478852867)

Generate stunning images and videos with advanced AI models. This app allows you to create, edit, and explore visual ideas by simply describing them, even referencing existing images or your own style. It's designed for creators to bring their unique visions to life and share them with others.

**Highlights:** Create images and videos with AI, Edit visuals by describing changes, Reference existing styles and images, Generate consistent characters, Brainstorm and learn with creative queries, Share and remix creations

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lite | $9.99 | per month |
| Plus | $29.99 | per month |
| Unlimited | $94.99 | per month |
| Lite | $95.99 | per year |
| Plus | $289.99 | per year |
| Unlimited | $919.99 | per year |
| Dream Machine Credits | $4.00 | one-time |

**What reviewers like**

- 🚀 Blazing fast generation
- 🎨 Stunning visuals and designs
- 💡 Innovative brainstorming feature
- 👍 Intuitive and user-friendly interface
- 🤖 Seamless integration of AI as a creative partner

**What reviewers complain about**

- 🐛 Inconsistent and unpredictable results
- ⏱️ Slow video rendering and processing times
- 💰 Expensive subscription model, charges for failed generations
- 🔄 Forced migration from web to app with reduced functionality
- 🤖 Limited understanding of user prompts and preferences

**Reported bugs**

- Video generation not working as expected
- Prompts not being understood correctly
- Inconsistent behavior across web and app versions
- Subscription and account management issues

**Requested features**

- Vertical format option for social media content
- Improved character creation and customization tools
- Better integration with external tools and workflows
- More transparency on queue times and generation credits
- Ability to downgrade or pause subscription plans


## Frequently asked questions

### Is SimpleSign free?

SimpleSign is free to download, with no in-app purchases.

### Is Luma Dream Machine free?

Luma Dream Machine is free to download, with in-app purchases available.

### Which has better reviews, SimpleSign or Luma Dream Machine?

SimpleSign is rated higher. SimpleSign averages 5.0 out of 5 from 4 ratings, while Luma Dream Machine averages 4.5 from 1.8K ratings.

### Do SimpleSign or Luma Dream Machine have ads?

SimpleSign shows ads; Luma Dream Machine does not.

### Which is updated more often, SimpleSign or Luma Dream Machine?

SimpleSign ships an update every 9 months, and Luma Dream Machine every 3 weeks. Most recently, SimpleSign was updated on October 2, 2026 and Luma Dream Machine on October 21, 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.*