Comparison

Sleeveworks vs Second Brain Link

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

Head to head
About

Sleeveworks

Engage in private AI conversations with distinct personalities running directly on your device. Choose from a variety of characters, interact via voice or text, and maintain local conversation history without internet access or tracking.

Highlights
  • On-device AI processing
  • Multiple AI personalities
  • Voice and text interaction
  • Offline conversation support
  • Local conversation history
  • Customizable themes
Features
Read full description

Sleeveworks is private AI with a point of view. Choose a personality, type or talk, and keep the conversation close. Its language model runs directly on your iPhone instead of sending every thought to a cloud AI service. MEET THE CAST Start with Companion, Gremlin, Pengo, Shekky, and Sage. Browse every character, read sample replies, and hear their on-device voice before choosing. Expand your cast with one-time personality unlocks, including Atlas the accountability coach, Bea the warm Southern grandmother, Quill the theatrical bard, Specter the gothic storyteller, and more. Each personality brings a distinct voice, attitude, and way of seeing the conversation. VOICE THAT FEELS LIKE CONVERSATION Tap Talk, speak naturally, and hear Sleeveworks answer. After a reply, the microphone can reopen automatically so the conversation keeps moving. When parallel capture is available, Sleeveworks can continue listening while it responds and place longer interjections in Up Next instead of derailing the current answer. Interrupt at any time when you want to take the floor. PRIVATE BY DESIGN After the one-time model download, core conversations are processed on your iPhone and can work without an internet connection. No account. No advertising. No tracking or analytics. No API key. Optional Wikipedia lookup is off by default and only connects when you enable it. MADE FOR REAL CONVERSATIONS - Keep local conversation history and context - Choose an on-device model suited to your iPhone - Switch personalities without changing apps - Preview character voices before choosing - Type while a response is still being generated - Stop a response without clearing the conversation - Choose between Paperwhite and system themes - Continue chatting after the model is downloaded, even offline Sleeveworks puts the model, the conversation, and the cast directly on your iPhone. Some personalities require a one-time in-app purchase. Initial setup requires an internet connection and sufficient storage to download an on-device language model. Model availability and performance vary by device.

About

Second Brain Link

Read full description

Second Brain Link turns the data you already own into a private, AI-queryable "digital twin" that lives entirely on your device. Your LinkedIn, Facebook, Instagram, and Google exports are unpacked, de-duplicated, and linked into one knowledge graph — right on your phone. Nothing is uploaded. There's no account, no tracking, and no cloud. WHAT YOU CAN DO • Build your brain from the data exports you request from each platform • Explore an interactive graph of the people, companies, and topics in your life • Talk to your twin — ask questions and get answers grounded in your own notes • Keep everything 100% on-device and private by design WHY IT MATTERS Your most valuable context — who you know, what you've done, what you care about — is trapped in export archives nobody ever opens. Second Brain Link hands it back to you, working. Your data already exists. It's already yours. It's time it started working for you.

Screenshots

Sleeveworks4 screens
Second Brain Link4 screens

Verdict

The call

The clearest difference is in-app purchases: Second Brain Link at none against Sleeveworks's 10. Second Brain Link also leads on iOS requirement (15.1 vs 17.0). On price, ads 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. Sleeveworks sells 10 one-off in-app purchases. Second Brain Link asks for nothing beyond the download.

Scorecard2 real differences · 7 level
Sleeveworks versus Second Brain Link: the parameters behind the verdict, then further details
ParameterSleeveworksSecond Brain Link
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 5 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size418 MB51 MB
Age rating17+4+
DeveloperJayson HawleyAdrian Vicovan

In-app purchases

10 purchases

Sleeveworks

One-time10
  • Atlas$1.99
  • Stella$1.99
  • Quill$1.99
Show 7 more
  • Vance$1.99
  • Doc Hertz$1.99
  • Pixel$1.99
  • Bea$1.99
  • Brio$1.99
  • Sterling$1.99
  • Specter$1.99
None

Second Brain Link

No in-app purchases

Questions

Is Sleeveworks free?
Sleeveworks is free to download, with in-app purchases available.
Is Second Brain Link free?
Second Brain Link is free to download, with no in-app purchases.
Do Sleeveworks or Second Brain Link have ads?
Neither Sleeveworks nor Second Brain Link shows ads.

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