Comparison

Synca · Sync Your Aha Moment vs Second Brain Map

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

Head to head
About

Synca · Sync Your Aha Moment

Features
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Synca is a lightweight app built for capturing ideas, collecting to-dos, and keeping them in sync across your devices. Sometimes you think of something important on your phone, only to find that it does not show up where you need it later. On some managed work devices, iCloud sync may be unavailable, which makes built-in note and reminder apps less practical for cross-device use. Synca is designed for exactly that kind of workflow. You can quickly save text or images on iPhone and have them synced to your Mac, so your work notes, personal reminders, and everyday ideas stay available when you need them. Key features: · Fast text capture · Image sending and viewing · Real-time sync between iPhone and Mac · Clear completed items while keeping history · Simple sign-in with Sign in with Apple · Great for work ideas, quick to-dos, personal notes, and cross-context capture Why Synca: · Keeps your capture workflow available even when iCloud sync is not · Cleaner and more focused than sending messages to yourself · Lighter than a traditional notes app for quick capture · Helps you save ideas instantly before they disappear · Web access support: https://synca.haerth.cn/ Synca makes it easier to capture first, organize later. · Privacy Policy: https://synca.haerth.cn/en/privacy-policy · Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Plans and attachment storage: The free plan includes up to 20 new entries per day, image sync, 200 MB of attachment storage and 3-day attachment retention. Paid plans include unlimited new entries, image and file sync, 2 GB of attachment storage and 7-day attachment retention. Monthly, yearly and lifetime options are available through In-App Purchase. Attachments expire automatically; save important files elsewhere. Lifetime purchase unlocks features, not permanent attachment storage.

About

Second Brain Map

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Brain Map is a free, private second brain for your iPhone. Capture a thought in one tap, by typing, talking, snapping a photo, scanning a document or sharing a link, and Brain Map gives it a title, tags it, files it into the right project and connects it to what you already know. Find anything by meaning, see how your ideas connect on a living map, and ask your notes questions. All the AI runs on your iPhone: no account, no subscription, no limits. CAPTURE ANYTHING IN ONE TAP • A capture button on every tab: tap to write, touch and hold for voice, photo or link (or pick a capture bar or tab in Settings) • Voice notes of any length, transcribed on your iPhone • Scan documents into searchable PDFs; snap a whiteboard or a receipt and its text, labels and QR codes become searchable • Attach PDFs and files: their text is searchable too • Share links and files from Safari or any app • Capture from widgets, Control Center, the Action button and Siri WRITE YOUR WAY • Headings, lists and checklists you tick right in the note, with Apple Writing Tools • Templates for meetings, journals and project briefs, or your own, from the / menu • Link notes, projects and days with @ and see which notes link back MEETING NOTES • Record a meeting of up to three hours, even with the screen locked, with a Live Activity • A timestamped transcript and moments you mark; tap a time to hear that part again • With Apple Intelligence: a summary, decisions and action items that become tasks IT ORGANISES ITSELF • Every note gets a title, tags and a short summary, made on your iPhone • Notes it isn't sure about wait in the Inbox for a one-tap confirm • Undo anything with one tap; pin, filter by tag, set reminders • "From your past" brings back notes you'd forgotten PROJECTS THAT FILL THEMSELVES • A project is just a name: add an emoji and a due date if you like • New notes file themselves into the right project; when Brain Map isn't sure, it suggests and you decide • It spots to-dos in your notes ("call the bank on Friday") with their due dates • Tick off tasks, watch the progress, and show due dates in a separate Brain Map calendar SHARE WITH FRIENDS AND FAMILY • Share a project or a note with a link; choose who can edit and who can only view • iCloud sync keeps your notes up to date on every iPhone you use SEE HOW YOUR IDEAS CONNECT • A living map of your notes, clustered by topic, with your projects as hubs • Brain Map suggests links between related notes; keep the good ones, dismiss the rest FIND ANYTHING BY MEANING • Search for what you meant, not the exact words: "that pricing idea" finds "try a free tier with a tip jar" • Your notes in iPhone search (Spotlight), if you want them there • Works across English, Russian and Ukrainian notes ASK YOUR NOTES • Type or say a question and get the notes that answer it • With Apple Intelligence, a written answer that cites its notes PRIVATE BY DESIGN • No account, no ads, no tracking, no analytics • All the AI runs on your iPhone: speech, text in photos and scans, tags, links, search and answers • Your notes stay on your device and, if you turn on sync, in your own private iCloud. There is no Brain Map server, and we never see your notes • Lock any note with Face ID: it's encrypted on your iPhone and in iCloud, and stays out of search, widgets and Spotlight • Export everything as Markdown, or a note or a whole project as a PDF FREE, FOR REAL • No subscription, no trial, no daily caps, no limits on notes or projects • In English, Russian and Ukrainian Brain Map works offline. Sync and sharing need iCloud; summaries and written answers need an iPhone with Apple Intelligence. Everything else works on any iPhone with iOS 26.

Screenshots

Synca · Sync Your Aha Moment3 screens
Second Brain Map4 screens

Verdict

The call

The clearest difference is in-app purchases: Second Brain Map at none against Synca · Sync Your Aha Moment's 3. Second Brain Map also leads on update cadence (daily vs monthly). Synca · Sync Your Aha Moment's advantage is device support (3 vs 1) and iOS requirement (16.0 vs 26.0). On price 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. Synca · Sync Your Aha Moment sells 3 in-app purchases, starting at $0.99 per month. Second Brain Map asks for nothing beyond the download.

UpkeepUpdate frequency

Synca · Sync Your Aha Moment ships an update monthly, Second Brain Map daily. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

Scorecard4 real differences · 2 level
Synca · Sync Your Aha Moment versus Second Brain Map: the parameters behind the verdict, then further details
ParameterSynca · Sync Your Aha MomentSecond Brain Map
PriceFreeFree
Update frequencyMonthlyDaily — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS16.0 — better26.0
Further details — not scored
Size9 MB18 MB
Age rating4+4+
Developer杰雨 李Rinat Maltsev

In-app purchases

3 purchases

Synca · Sync Your Aha Moment

Subscriptions2
  • Synca Unlimited (Monthly)1 Month trial$0.991 Month
  • Synca Unlimited (Yearly)1 Month trial$3.991 Year
One-time1
  • Synca Unlimited Lifetime$14.99
None

Second Brain Map

No in-app purchases

Questions

Is Synca · Sync Your Aha Moment free?
Synca · Sync Your Aha Moment is free to download, with in-app purchases available.
Is Second Brain Map free?
Second Brain Map is free to download, with no in-app purchases.
Do Synca · Sync Your Aha Moment or Second Brain Map have ads?
Neither Synca · Sync Your Aha Moment nor Second Brain Map shows ads.
Which is updated more often, Synca · Sync Your Aha Moment or Second Brain Map?
Synca · Sync Your Aha Moment ships an update monthly, and Second Brain Map daily. Most recently, Synca · Sync Your Aha Moment was updated on November 5, 2026 and Second Brain Map on November 10, 2026.

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