Comparison

Idea Threads vs Marginalist

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

Head to head
About

Idea Threads

Capture and organize your creative thoughts on the go using text, audio, or photos. Organize ideas into threads, search, and filter them easily. Sync with Plottr Pro for advanced project management and collaboration.

Highlights
  • Capture ideas via text, audio, or photo
  • Organize ideas into threads
  • Search and filter ideas
  • Sync with Plottr Pro
  • Cloud backup and collaboration
  • View projects on the go
Features
Read full description

If you are a creative person and you get sudden great ideas while you're not at your computer, this app is for you! Designed to quickly capture your ideas on the go, Idea Threads lets you either type out an idea, speak it, or take a picture. It keeps your ideas organized into threads (categories or projects) to find them easily later. You can search, filter by type (audio, picture, or text), zoom in and out to see lots all at once or the details of each. If you're a writer or you use Plottr for your creative projects, you can log into and subscribe to Plottr Pro (subscription required as in-app purchase) to sync your ideas with your projects and easily turn them into new scenes, characters, world building, and more. You'll also be able to view your projects on the go so you can keep the creative juices flowing on the back burner like all us creatives constantly do. All the base features are completely free: - Capture unlimited ideas - Capture them in audio, photo, or text - Organize them into unlimited threads - Search and filter - Ideas are stored on your device Idea Threads is available for free download. Some features require a subscription to Plottr Pro. This also ensures the continuous development of Idea Threads so that new and improved features can be added over time. Subscribe to Plottr Pro and unlock these features: - Ideas saved in the cloud & synced between devices - Read your Plottr Projects on the go - Send and use your ideas within Plottr - Plottr's web app (works on tablets!) - Real-time collaboration - Cloud backups (of ideas and Plottr files) PLOTTR PRO SUBSCRIPTION INFO: - Subscription length: monthly - Payment will be charged to your iCloud Account as soon as you confirm your purchase - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal - Subscriptions auto-renew at the same cost, unless cancelled 24-hours in advance prior to the end of the current period - Subscriptions may be managed by going to your iCloud Account Settings after purchase. - You may manage your subscription and turn off auto-renewal by going to your Account Settings after purchase. Plottr does not collect personal data and the developer does not have access to the ideas you create in Idea Threads, nor your Plottr projects. Idea Threads does not track its users and there are no ads in the app. Privacy Policy: https://plottr.com/privacy-policy/ Terms of Service: https://plottr.com/terms-conditions/

About

Marginalist

This app is a dedicated manuscript reader and audio player for professionals and avid readers. It allows for easy annotation, AI-powered summaries, and character tracking, with the ability to export edited documents while preserving original formatting.

Highlights
  • Manuscript reading and audio playback
  • Annotation and comment management
  • AI-powered recap and character index
  • MS Word (.docx) and PDF import
  • Export with original formatting
  • Customizable reading environment
Features
Read full description

Marginalist is a focused manuscript reader (and text-to-speech/ manuscript audio player) for book editors, agents, publishers, professors, writing groups, friends-of-novelists, and anyone else who tackles reading long manuscripts. Open a MS Word document (.docx) or PDF, flow it into a beautiful reading experience, add and manage comments, and export back as the original document with all of your formatting intact. Our stay-out-of-the-way AI helps you keep track of your reading experience with three powerful features (Recap, Character Index, Ask) without generative nonsense. FEATURES: - Import MS Word (.docx) or PDF files (Files app, Dropbox, drag-and-drop and via share-sheet integration) - Adjust your perfect reading environment (font, theme, margins, etc) - Add comments with ease - or use one of our 'quick-action' comments - View your reading stats, search the manuscript, or connect an external keyboard - Three powerful non-generative AI features: - 'Remind me what happened' - get a recap of what's happened over the last handful of pages - 'Character index' - Marginalist automatically builds a character index with the associated passages so you never have to ask: 'Who is Robert again?' - Ask a question about the book - Read Aloud - Marginalist will read the manuscript to you - Author's Note - an in-app scratchpad / author's note can be optionally appended to the manuscript - Export the manuscript back into your workflow, with all of the original formatting intact - and all of your comments. Free to download and use. No account or signup needed.  Upgrade to PRO for a few extra features. More info: https://marginalist.app Support & Contact https://marginalist.app/support

Screenshots

Idea Threads4 screens
Marginalist4 screens

Verdict

The call

The clearest difference is rating: Idea Threads at 5.0 against Marginalist's 4.4. Idea Threads also leads on review sentiment (100% vs 75%) and iOS requirement (15.1 vs 18.6). Marginalist's advantage is in-app purchases (none vs 1) and update cadence (every 10 days vs every 2 months). On price, ratings volume, ads and monetization model 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. Idea Threads sells 1 in-app purchase, starting at $14.99 per month. Marginalist asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Idea Threads holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 5 and 7 respectively. Written reviews point the same way: 100% of Idea Threads's written reviews are positive against 75% of Marginalist's.

UpkeepUpdate frequency

Idea Threads ships an update every 2 months, Marginalist every 10 days. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.

Scorecard5 real differences · 5 level
Idea Threads versus Marginalist: the parameters behind the verdict, then further details
ParameterIdea ThreadsMarginalist
PriceFreeFree
Rating5.0 (5 ratings) — better4.4 (7 ratings)
Positive reviews100.0% of reviews — better75.0% of reviews
Number of ratings57 — better
Update frequencyEvery 2 monthsEvery 10 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, Mac — better
Requires iOS15.1 — better18.6
Further details — not scored
Size53 MB24 MB
Age rating4+4+
DeveloperFictional Devices LLCBen Parzybok

Customer experience

Idea Threads

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Marginalist

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

1 purchases

Idea Threads

Subscriptions1
  • Plottr Pro$14.991 Month
None

Marginalist

No in-app purchases

Questions

Is Idea Threads free?
Idea Threads is free to download, with in-app purchases available.
Is Marginalist free?
Marginalist is free to download, with no in-app purchases.
Which has better reviews, Idea Threads or Marginalist?
Idea Threads is rated higher. Idea Threads averages 5.0 out of 5 from 5 ratings, while Marginalist averages 4.4 from 7 ratings.
Do Idea Threads or Marginalist have ads?
Neither Idea Threads nor Marginalist shows ads.
Which is updated more often, Idea Threads or Marginalist?
Idea Threads ships an update every 2 months, and Marginalist every 10 days. Most recently, Idea Threads was updated on November 5, 2026 and Marginalist on November 9, 2026.

Other comparisons