Comparison

SimpleSign vs Luma Dream Machine

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SimpleSign

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
Read full description

Display full size characters and words in the full screen. Long sentence can slide through screen with animation. - Showing score or answer of quiz in party - Contact to the person that stands far from you - Substitution of signboard etc. It is useful in many situation. [Functional Description] - Appears one character on screen from 45 different characters. - Changing color of character and background. - Changing font type. - Long sentence can be displayed by one line or paragraph with sliding animation on/off.

About

Luma Dream Machine

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
Read full description

Ideate, visualize, create videos, and share your dreams with the world, using our most powerful image and video AI models. Available now on iOS. With Dream Machine in your hands, you will: - Create Beautiful Images and Videos, fast - There is a brand new image model in here that we have trained for those who design and create the world and stories around us — you! It’s very creative, quite intelligent and — for the first time ever — super personalizable! Put it to its paces and try everything that comes to mind! - No prompt engineering, just ask - Talk to Dream Machine like it is your new creative partner. 'Create', 'edit', and 'explore' infinite ideas. Use 'Modify' to edit images and videos by describing your changes. - Reference anything - You can bring your style, previous works, and ideas into Dream Machine through *Reference*. For the first time ever, you can also instruct with up to 4 images, and text and create unique new combinations of ideas! - Consistent characters - 'Reference' a person by giving just a single image of their face to Dream Machine. Now you can create infinitely varied images and videos of them in every setting and scene. - Learn and grow with creative queries - Never run out of ideas and build on your best ones using Creative Query or Brainstorm. - Share and Remix - Share your “behind the scenes” process, show the world your 'Boards' or 'Ideas'. Remix and ideate on boards shared with you and expand the universe of thought. Join tens of millions of users and try Dream Machine to show the world how you see it. Download Dream Machine today. Terms of service and privacy policy: https://lumalabs.ai/legal/tos https://lumalabs.ai/legal/privacy

Screenshots

SimpleSign4 screens
Luma Dream Machine4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
SimpleSign versus Luma Dream Machine: the parameters behind the verdict, then further details
ParameterSimpleSignLuma Dream Machine
PriceFreeFree
Rating5.0 (4 ratings) — better4.5 (1.8K ratings)
Positive reviews100.0% of reviews — better33.0% of reviews
Number of ratings41.8K — better
Update frequencyEvery 9 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad — betteriPhone
Requires iOS17.517.0 — better
Further details — not scored
Size4 MB72 MB
Age rating4+12+
Developeridota limitedLuma AI, Inc.

Customer experience

SimpleSign

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Luma Dream Machine

All ratings1,777 ratings
Positive87.5%
Neutral2.8%
Negative9.7%
Written reviews333 reviews
Positive33.0%
Neutral6.9%
Negative60.1%

Bugs and requests

SimpleSign

Not enough reviews yet to summarise bugs or requests.

Luma Dream Machine

Reported bugs

4 issues
  • 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

5 requests
  • 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

In-app purchases

None

SimpleSign

No in-app purchases

7 purchases

Luma Dream Machine

Subscriptions6
  • Lite$9.991 Month
  • Plus$29.991 Month
  • Unlimited$94.991 Month
Show 3 more
  • Lite$95.991 Year
  • Plus$289.991 Year
  • Unlimited$919.991 Year
One-time1
  • Dream Machine Credits$4.00

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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