Penspace vs delve
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Penspace
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Scroll ideas from books, read summaries, track reading, capture highlights. Penspace is a micro-learning platform designed to transform everyday scrolling into meaningful learning from books. Instead of spending time on endless entertainment feeds, users interact with short knowledge cards that present powerful ideas drawn from influential books. Each card communicates one clear concept that can be understood in seconds, making learning simple, engaging, and accessible. The experience begins with a scrolling feed of knowledge cards. Each card highlights an idea from a book and presents it in a concise format focused on clarity and insight. For example, a card might introduce the concept of habit compounding from Atomic Habits by James Clear, explaining how small improvements repeated daily can lead to major long-term change. Another card may present an insight about human decision-making from Thinking, Fast and Slow by Daniel Kahneman. These short learning moments allow users to gain valuable knowledge in just a few seconds. If users want to explore further, they can open structured summaries of books. Each summary explains the core ideas of a book in a clear and organized format. Summaries typically include an overview, key ideas, important concepts, actionable insights, and memorable quotes. This helps readers quickly understand the main arguments of a book and decide whether they want to read the full work. The platform also highlights book recommendations from influential thinkers. Many readers are curious about the books that shaped the thinking of successful people. The app surfaces recommendations from figures such as Elon Musk, Naval Ravikant, and Bill Gates. Exploring these recommendations allows users to discover books that have influenced innovators, entrepreneurs, and leaders. Users can save books they find interesting to a personal library within the app. This library becomes a curated collection of titles the user wants to read or explore later. For example, a reader might save books such as Deep Work or The Psychology of Money. Over time, this library grows into a personalized knowledge collection. The platform also includes a built-in e-book reader that allows users to upload their own digital books, typically in formats such as EPUB or PDF. Once uploaded, the book can be read directly inside the app using a clean, distraction-free interface. The reader offers customizable settings such as font size, background color, and spacing to make reading comfortable for long sessions. While reading, users can highlight passages and add notes. These highlights are automatically saved to the userβs knowledge library, making it easy to revisit important ideas later. Highlights from books become a personal archive of insights collected over time. The app also supports readers of physical books through an OCR highlighting feature. Users can photograph a page, and the system converts the printed text into digital text that can be saved as a highlight. For example, someone reading Meditations could capture meaningful passages and store them alongside their digital highlights. To encourage consistent reading habits, the app includes a reading tracker. Users can monitor the books they are currently reading, the books they have completed, and their overall reading progress. This helps motivate users to build a long-term habit of reading. Together, these features create a complete learning ecosystem. Users scroll through ideas, discover books, explore summaries, save titles, read books, highlight insights, and track their progress. Over time, the platform becomes not just a feed of content but a personal knowledge system that grows with the readerβs curiosity and learning journey. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy https://penspace.in/privacy.html
delve
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Everything online wants your attention. delve gives you something back for it. A topic is one idea, explained properly: a video to watch, then prose that goes exactly as deep as you want to go. No listicles, no padding, no fifteen open tabs. Most take a few minutes, and they end β there is no feed here to swallow your evening. CINEMATIC TOPICS A handful of stories are made the way a film is made. Their own colours, their own typography, photographs given the whole screen. You move through one scene at a time, and every scroll lands with a resistance you can feel. READ IN THREE DEPTHS The hook tells you why it matters. The context gives you the ground. And if you're still curious, the deep dive takes you further. A rule marks each one, and it thins as you go β so you can always see how deep you are. AN AI THAT READ THE PIECE Anything still unclear, ask. It answers from the topic in front of you rather than improvising, and four good opening questions are already waiting at the end of every read. TOPIC GENERATION Nobody's library has everything. Type the thing you're actually curious about and delve writes it β same format, same depth, ready in about a minute, and yours to keep. PATHWAYS Name a goal in your own words and get the route there: three to six topics in an order where each one only assumes what the one before it taught. Tick them off and the path fills in behind you. AND THE SMALL THINGS Your library, one tap away. A proper dark palette, not an inverted light one. A home screen built from interests you choose once. FREE, AND NOT THE TRIAL KIND Every topic, every cinematic story and the whole reader are free. The only limit is a daily allowance on the AI, because generation costs real compute β and the app shows you exactly what you've used and when it resets. Students can ask for roughly double it; there's no form and no payment step β just write us. Questions, bugs, or a story you think we should make: contact@trydelve.app
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Verdict
The clearest difference is update cadence: delve at every 4 days against Penspace's every 2 months. Penspace's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Penspace ships an update every 2 months, delve every 4 days. The most recent releases landed on October 5, 2026 and October 13, 2026 respectively.
| Parameter | Penspace | delve |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 4 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod β better | iPhone |
| Requires iOS | 15.5 β better | 16.4 |
| Further details β not scored | ||
| Size | 123 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | PENSPACE ENTERPRISES PRIVATE LIMITED | Simon Rath |
In-app purchases
Penspace
No in-app purchases
delve
No in-app purchases









