Comparison

Cerebro vs Sparko

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

Head to head
About

Cerebro

This AI-powered thought journal helps you capture ideas and resurfaces forgotten thoughts with context. It automatically extracts to-dos and uses semantic search to find entries based on meaning, not just keywords. Designed for those who struggle with organization, it removes friction by letting AI handle the sorting.

Highlights
  • AI-powered thought processing
  • Automatic to-do extraction
  • Semantic search for ideas
  • Resurfaces forgotten thoughts
  • Frictionless writing experience
  • No folders or manual organization
Features
Read full description

Your thoughts deserve better than a folder. Cerebro is an AI-powered thought journal that remembers so you don't have to. Open the app, write what's on your mind, and close it. That's it. Cerebro handles the rest: organizing your thoughts, extracting action items, and bringing forgotten ideas back at the right moment. How it works: - Open the app to a blank editor. Write freely in markdown. - AI silently processes every entry. No chatbot, no conversation. - Todos are extracted automatically from your natural writing. - A living memory document evolves with your thinking over time. - Push notifications resurface forgotten thoughts with context like "You mentioned wanting to learn Rust a week ago. Any progress?" Semantic search that actually works. Type "that creative project idea" and find an entry about building a camera app, even if those exact words never appeared. Cerebro understands meaning, not just keywords. Built for the forgetful. If you've tried journaling apps and abandoned them because organizing felt like a chore, Cerebro is different. There are no folders, no tags, no categories. You write. The AI organizes. Thoughts come back when they matter. Perfect for ADHD minds. Cerebro was built by someone who forgets things. The entire design removes friction: no onboarding, no setup, no maintenance. Just a blinking cursor ready for your next thought. What Cerebro is not: - Not a notes app. You don't organize anything. - Not a chatbot. The AI works silently behind the scenes. - Not a productivity system. It's a thought persistence layer. Start your free trial today. Your best ideas are worth remembering. Terms of Use: https://cerebro.henrypl.com/terms Privacy Policy: https://cerebro.henrypl.com/privacy

About

Sparko

Features
Read full description

Is your inspiration scattered across every corner of your digital life? Screenshots in your camera roll, links saved across different apps, half-written notes, and ideas that appear out of nowhere. Each one caught your attention for a reason, but many are rarely seen again. Sparko gives those ideas a place of their own. It does more than organize images. It helps you put inspiration back into the part of your life where it belongs. MAKE SPACE FOR EVERY PART OF YOUR LIFE Your next trip, the home you are decorating, outfits you want to try, books you want to read, or a product you are building. Create a space for each part of your life. A screenshot no longer belongs only to the day you saved it. It can belong to your home, your travels, or whatever you want to do next. SAVE NOW, SORT LATER Save a screenshot, photo, link, or passing thought. Capture it first and add tags whenever you are ready. The ideas that used to disappear into your camera roll finally have somewhere to stay. FIND IT AGAIN WITH TAGS Add primary and secondary tags to your inspiration. When something comes back to mind, you will not have to search through your camera roll, notes, and different apps to find it. Open Sparko and see it again. FROM SAVED FOR LATER TO HAPPENING NOW Mark inspiration as Saved, In Progress, or Completed. Some ideas deserve to become more than another item in a collection. Sparko lets you see them gradually become part of your real life. It does not expect you to act on everything you save, and it will not pressure you. It simply keeps the things you love close and helps you notice which ideas are actually happening. KEY FEATURES • Create spaces around different parts of your life • Save screenshots, photos, links, and written ideas • Organize inspiration with primary and secondary tags • Search and filter everything you have saved • Track ideas as Saved, In Progress, or Completed • Enjoy a calm, notebook-inspired interface Your camera roll saves the image. Sparko saves what it means to your life. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Cerebro4 screens
Sparko4 screens

Verdict

The call

The clearest difference is update cadence: Sparko at every 4 days against Cerebro's every 3 weeks. Sparko also leads on iOS requirement (15.0 vs 26.0). On price, 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

Both are free to download. Cerebro sells 2 in-app purchases, starting at $9.99 per month and Sparko sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Cerebro ships an update every 3 weeks, Sparko every 4 days. Both last shipped on October 25, 2026.

Scorecard2 real differences · 7 level
Cerebro versus Sparko: the parameters behind the verdict, then further details
ParameterCerebroSparko
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhoneiPhone, iPod — better
Requires iOS26.015.0 — better
Further details — not scored
Size87 MB33 MB
Age rating12+4+
DeveloperHenry PL, LLC若璇 王

In-app purchases

2 purchases

Cerebro

Subscriptions2
  • Cerebro Pro3 Days trial$9.991 Month
  • Cerebro Pro3 Days trial$79.991 Year
3 purchases

Sparko

Subscriptions2
  • Spark 月度订阅$0.991 Month
  • Spark 年度订阅7 Days trial$6.991 Year
One-time1
  • Spark 终身$14.99

Questions

Is Cerebro free?
Cerebro is free to download, with in-app purchases available.
Is Sparko free?
Sparko is free to download, with in-app purchases available.
Do Cerebro or Sparko have ads?
Neither Cerebro nor Sparko shows ads.
Which is updated more often, Cerebro or Sparko?
Cerebro ships an update every 3 weeks, and Sparko every 4 days. Most recently, Cerebro was updated on October 25, 2026 and Sparko on October 25, 2026.

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