Comparison

Prism Notes vs Atlas

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

Head to head
About

Prism Notes

Capture thoughts and links quickly with a familiar texting interface. Organize ideas with AI-suggested tags and develop them across linked threads. Review notes to keep what matters and easily search by keyword or meaning.

Highlights
  • Texting-like note capture
  • AI-suggested tags
  • Threaded idea development
  • Review mode for notes
  • Sync across devices
  • Natural language reminders
  • Lock screen capture
Features
Read full description

Prism is the private place for quick thoughts and links. It feels like texting, rather than writing in a document. Capture easily, organize with tags, develop ideas across threads, review to keep only what matters. Free to try! Features: - Private and on-device - Opt in to iCloud sync between iPhone and Mac - Voice transcription and voice memos - Lock screen widgets for text and voice capture - AI-suggested tags to make organizing easy or automatic AI tagging (requires apple intelligence) - Review mode to keep notes alive or let them go - Threads to evolve a thought and link them together - Search by keyword - Natural language reminders - just say "remind me tomorrow at 2pm" (requires apple intelligence)

About

Atlas

This app provides a creative workspace for ambitious writing projects, organizing research, and building knowledge bases. It offers tools for deep world-building and information gathering, adapting to your unique workflow.

Highlights
  • Organize research and chapters
  • Visualize connections with canvases
  • Smart linking for connected documents
  • Live Markdown formatting
  • Visual editing on canvases
  • iCloud sync across devices
  • Export to ebook, PDF, HTML
Features
Read full description

Atlas keeps your story and everything behind it in one place. Write chapters beside character sheets, build your world’s lore and maps, and keep every source you’ve gathered one click away from the page you’re writing. A native app for Mac, iPad, and iPhone. BUILD YOUR PROJECT HOW YOU THINK Nest documents to any depth. Any document can hold its own children, so a character can carry their backstory and a chapter can carry its research. Type [[ to link anything; links survive renames, and backlinks show every place a character or location appears. Hierarchical tags, synopses, custom fields like POV or status, and templates keep hundreds of documents easy to navigate. MAP IT ON AN INFINITE CANVAS Lay out documents, folders, images, sketches, and web pages, then drop pins to build a map of your world. Draw labeled connections between characters, plot threads, and places, gather them into groups, and edit any document right on its card. Add sketches created with Apple Pencil on iPad. KEEP RESEARCH CLOSE The Web Clipper turns articles into clean Markdown with their images and source details, and pulls full transcripts from YouTube videos. Snap a photo on your iPhone, share from any app, and keep PDFs, audio, video, and live web pages inside the project, right next to the draft that needs them. WRITE WITH FOCUS Markdown formats as you type and stays out of sight until you need it. Focus Mode dims everything but the sentence you’re on, and Typewriter Scrolling keeps your eyes in one place. Add footnotes, annotations, and tables, and check grammar privately on device with Apple Intelligence. PUBLISH ON YOUR TERMS Export ePub books with custom chapter breaks, print-ready PDFs including a 5x8” trade paperback layout with mirrored margins and running heads, HTML, RTF, plain text, or Markdown. A live preview shows exactly what you’ll get, and the built-in style editor lets you design your own look. SYNC WITH A SAFETY NET iCloud keeps your Mac, iPad, and iPhone in step. Every save creates a version you can browse, star, and restore across all devices. Edits made on two devices to different paragraphs merge automatically, and if they truly collide, Atlas helps you merge both versions so nothing is lost. YOUR WORK STAYS YOURS Documents are Markdown, canvases use an open format, and sync runs through your own iCloud account, not our servers. Whatever happens with your purchase, you can always open, edit, and export everything you’ve made. PRICING Start free with one project with a limited number of documents. Unlock unlimited projects and documents with a monthly or yearly subscription, or buy Lifetime once and own it. One purchase covers Mac, iPad, and iPhone, and every option includes every feature. -- Learn more at https://contagious.dev/atlas -- Start free with a free project (with a document count restriction). Atlas requires a single lifetime redemption or a monthly/yearly subscription to unlock access across all devices with unlimited projects and documents. Privacy Policy: https://contagious.dev/privacy-policy/atlas/ Terms of Use (EULA): https://contagious.dev/terms-of-use/atlas/

Screenshots

Prism Notes4 screens
Atlas4 screens

Verdict

The call

The clearest difference is monetization model: Prism Notes at free against Atlas's subscription. Prism Notes also leads on review sentiment (100% vs 83%) and ratings volume (38 vs 3). On price, rating, update cadence and ads 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. Prism Notes sells 2 one-off in-app purchases and Atlas sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Prism Notes against 5.0 for Atlas. That said, the two scores are not equally well evidenced: Prism Notes has 38 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 100% of Prism Notes's written reviews are positive against 83% of Atlas's.

UpkeepUpdate frequency

Prism Notes ships an update every 3 days, Atlas every 5 days. The most recent releases landed on October 28, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Prism Notes versus Atlas: the parameters behind the verdict, then further details
ParameterPrism NotesAtlas
PriceFreeFree
Rating4.9 (38 ratings)5.0 (3 ratings) — better
Positive reviews100.0% of reviews — better83.3% of reviews
Number of ratings38 — better3
Update frequencyEvery 3 days — betterEvery 5 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPad, Mac
Requires iOS18.618.0 — better
Further details — not scored
Size24 MB72 MB
Age rating4+4+
DeveloperTommy JosephDaniel Griffin

Customer experience

Prism Notes

All ratings38 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews15 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Atlas

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

In-app purchases

2 purchases

Prism Notes

One-time2
  • Lifetime Unlock$6.99
  • Lifetime Unlock$12.99
3 purchases

Atlas

Subscriptions2
  • Monthly Access1 Month trial$3.991 Month
  • Yearly Access$24.991 Year
One-time1
  • Lifetime Purchase$59.99

Questions

Is Prism Notes free?
Prism Notes is free to download, with in-app purchases available.
Is Atlas free?
Atlas is free to download, with in-app purchases available.
Which has better reviews, Prism Notes or Atlas?
Atlas is rated higher. Prism Notes averages 4.9 out of 5 from 38 ratings, while Atlas averages 5.0 from 3 ratings.
Do Prism Notes or Atlas have ads?
Neither Prism Notes nor Atlas shows ads.
Which is updated more often, Prism Notes or Atlas?
Prism Notes ships an update every 3 days, and Atlas every 5 days. Most recently, Prism Notes was updated on October 28, 2026 and Atlas on October 30, 2026.

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