Comparison

Overlay One vs PiggyNotebook

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

Head to head
About

Overlay One

Features
Read full description

Overlay is an AI assistant with a memory. Capture anything β€” a note, a task, a link, a half-formed idea β€” and Overlay's brain organizes it, connects it, and remembers it. Then you can chat with everything you know. Most apps make you file things away and dig them back out. Overlay does the filing for you and brings the right context back the moment you need it. WHAT YOU CAN DO β€’ Capture in one tap β€” Jot a quick note from anywhere. Overlay's brain decides whether it's a note, a task, or something worth remembering, so you never stop to choose. β€’ Chat that actually knows you β€” Ask questions and get answers grounded in your own notes, tasks, and saved pages β€” not a blank-slate chatbot. β€’ Tasks, automatically β€” Action items are pulled out of what you capture. No separate to-do ritual. β€’ A brain that grows β€” Overlay builds a living memory from what you save: the people, projects, and topics you care about, and how they connect. β€’ Your best prompts, saved β€” Keep the prompts you rely on a tap away. ONE BRAIN, EVERYWHERE Overlay works on iPhone, in your browser, and on the web β€” all synced. Save a page from your laptop and it's waiting in your pocket. Every capture is tagged with where it came from, so nothing gets lost. BUILT ON THE BEST MODELS Overlay runs on leading AI models, including Anthropic's Claude and Google Gemini, choosing the right one for the job. PRIVATE BY DESIGN Your knowledge is yours. Everything is secured per-account, and you stay in control of what Overlay remembers. Stop losing your best thinking. Scale your brain.

About

PiggyNotebook

Features
Read full description

100% Free! PiggyNotebook is an AI-powered note-taking app that helps you capture scattered thoughts and gradually turn them into structured knowledge. Ideas often come to us when we don't have time to organize them. With PiggyNotebook, you can quickly capture your thoughts using text or voice. AI understands your notes and automatically organizes them into relevant topics. As you add more notes, AI uses the previous content within each topic to organize and summarize your thoughts, gradually turning scattered ideas into more complete and useful knowledge. Key Features β€’ Quickly capture thoughts with text or voice β€’ Automatically organize notes into relevant topics with AI β€’ Build up ideas under the same topic over time β€’ AI-powered summaries based on your previous notes β€’ Great for learning, work, ideas, and everyday thinking You don't need to decide how to organize everything in advance. Just capture your thoughts and let AI handle the rest.

Screenshots

Overlay One3 screens
PiggyNotebook4 screens

Verdict

The call

The clearest difference is update cadence: PiggyNotebook at every 3 days against Overlay One's every 3 weeks. PiggyNotebook also leads on iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Overlay One ships an update every 3 weeks, PiggyNotebook every 3 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

Scorecard2 real differences Β· 4 level
Overlay One versus PiggyNotebook: the parameters behind the verdict, then further details
ParameterOverlay OnePiggyNotebook
PriceFreeFree
Update frequencyEvery 3 weeksEvery 3 days β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.015.0 β€” better
Further details β€” not scored
Size21 MB22 MB
Age rating4+4+
DeveloperηŽ‰θ‹η”«ζ±Ÿ θ‰Ύθ₯Ώηƒ­η”«Yuan Wan

In-app purchases

None

Overlay One

No in-app purchases

None

PiggyNotebook

No in-app purchases

Questions

Is Overlay One free?
Overlay One is free to download, with no in-app purchases.
Is PiggyNotebook free?
PiggyNotebook is free to download, with no in-app purchases.
Do Overlay One or PiggyNotebook have ads?
Neither Overlay One nor PiggyNotebook shows ads.
Which is updated more often, Overlay One or PiggyNotebook?
Overlay One ships an update every 3 weeks, and PiggyNotebook every 3 days. Most recently, Overlay One was updated on October 28, 2026 and PiggyNotebook on October 31, 2026.

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