Comparison

Ideaflow vs roamOS

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

Head to head
About

Ideaflow

Capture fleeting thoughts, links, and information effortlessly with this AI-powered notebook. Record voice notes and organize insights for your projects and connections. It offers a low-friction experience for managing your ideas.

Highlights
  • AI-powered note-taking
  • Instant information capture
  • Voice note recording
  • Link saving
  • Project organization
Read full description

Ideaflow is an AI-powered notebook with instant capture, voice notes, and more. We're building the lowest friction way to capture fleeting insights, important links, and tidbits of information for all the projects and people you're working on, helping, or connecting. Also available on the web at https://ideaflow.app/

About

roamOS

Seamlessly integrate your Roam Research knowledge base into your daily workflow. Capture ideas instantly, access notes via system search, and view tasks with customizable widgets without interrupting your focus.

Highlights
  • Instant capture via Siri and shortcuts
  • Customizable home screen widgets
  • System-wide search integration
  • Natural language queries
  • Cross-device compatibility (iPhone, iPad, Mac)
  • One-time purchase with lifetime updates
Features
Read full description

You've built the perfect knowledge system in Roam. But it's locked away from where you actually work. Your breakthrough insights hit during Zoom calls, but opening Roam breaks your flow. Every TODO check means app switching. Every lookup interrupts your momentum. Your second brain can't help if you can't access it. roamOS bridges your knowledge and your workflow. Finally, your Roam graph works everywhere you do. Capture thoughts instantly via Siri, access notes through system search, and see your TODOs in beautiful widgets. No more app switching. No more lost insights. Instant Capture That brilliant idea hits during a meeting? Capture it instantly with Siri voice commands, keyboard shortcuts, or the quick launcher. Your thoughts flow directly into Roam without breaking focus. Beautiful Widgets Transform your morning routine with customizable widgets that surface exactly what you need. Your TODOs, recent notes, and daily reminders - right on your home screen where you'll actually see them. System-Wide Access Your knowledge becomes part of your system. Press Command+Space on Mac or swipe down on iPhone - search for any thought and jump directly to context. Your Roam graph integrates seamlessly with Spotlight search. Natural Language Queries Ask naturally and get instant results. "Yesterday's TODOs," "meetings this week," or "notes about pricing" - no Datalog required. Just think and ask. Complete Integration Works beautifully across iPhone, iPad, and Mac. Your second brain follows you everywhere - menubar access, Siri shortcuts, system search, and gorgeous widgets that actually help. Built by Roam users, for Roam users. Stop switching apps to access your thoughts. Your knowledge system deserves to work as hard as you do. One-time purchase. Lifetime updates. No subscriptions. Perfect for knowledge workers, researchers, writers, and anyone building their second brain in Roam Research.

Screenshots

roamOS3 screens

Verdict

The call

The clearest difference is review sentiment: Ideaflow at 100% against roamOS's 33%. Ideaflow also leads on price (Free vs $19.99) and rating (4.8 vs 1.0). roamOS's advantage is update cadence (every 4 days vs fortnightly). On ads, in-app purchases and device support 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

Ideaflow is free to download; roamOS costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Ideaflow holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Ideaflow has 31 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Ideaflow's written reviews are positive against 33% of roamOS's.

UpkeepUpdate frequency

Ideaflow ships an update fortnightly, roamOS every 4 days. The most recent releases landed on September 18, 2026 and September 7, 2026 respectively.

Scorecard7 real differences · 3 level
Ideaflow versus roamOS: the parameters behind the verdict, then further details
ParameterIdeaflowroamOS
PriceFree — better$19.99
Rating4.8 (31 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews — better33.3% of reviews
Number of ratings31 — better1
Update frequencyFortnightlyEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPadiPhone, Mac
Requires iOS16.4 — better26.0
Further details — not scored
Size9 MB6 MB
Age rating4+4+
DeveloperIdeaFlow, Inc.Ryan Sonnek

Customer experience

Ideaflow

All ratings30 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

roamOS

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

Ideaflow

No in-app purchases

None

roamOS

No in-app purchases

Questions

Is Ideaflow free?
Ideaflow is free to download, with no in-app purchases.
Is roamOS free?
roamOS costs $19.99, with no in-app purchases.
Which has better reviews, Ideaflow or roamOS?
Ideaflow is rated higher. Ideaflow averages 4.8 out of 5 from 31 ratings, while roamOS averages 1.0 from 1 ratings.
Do Ideaflow or roamOS have ads?
Neither Ideaflow nor roamOS shows ads.
Which is updated more often, Ideaflow or roamOS?
Ideaflow ships an update fortnightly, and roamOS every 4 days. Most recently, Ideaflow was updated on September 18, 2026 and roamOS on September 7, 2026.

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