Comparison

delve vs Curio

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

Head to head
About

delve

Read full description

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 — 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 — 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 — 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 — 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 — just write us. Questions, bugs, or a story you think we should make: contact@trydelve.app

About

Curio

Discover fascinating short stories on history, science, psychology, and more. Engage with AI-powered explanations, interactive scenarios, and save content for later. Learn and explore topics that spark your curiosity through bite-sized, engaging reads.

Highlights
  • Curated short reads
  • AI-powered explanations
  • Interactive scenarios
  • Save and organize content
  • Multi-language support
  • Offline reading (Pro)
Features
Read full description

Curio turns the swipe habit into something worth keeping. Instead of doomscrolling, swipe through beautiful full-screen reads: weird history, psychology, science, horror stories, money lessons, hidden knowledge, and rabbit holes you actually want to fall into. WHY CURIO • A feed built for curiosity — short, specific, fascinating reads picked for your interests • Today's News — real stories from around the world, a new edition every day • Bible Curiosities — strange stories from the Bible • Bite-sized by design — most cards take 20–45 seconds, with depth one tap away • Explain Deeper — Curio AI unpacks any card: simpler, deeper, quiz me, or turn it into a story • Build a feed on a topic — pick one Curio covers and scroll a rabbit hole built around it • Listen with premium voices — natural, expressive narration for every card • Interactive scenarios — Would You Survive? Make the call and see how you score • Save what matters — bookmark and revisit ideas worth keeping • Read in 4 languages — English, 中文, Español, Português, with bilingual mode • Easy on your eyes — SmartRead Display, night themes, and reading comfort settings CURIO PRO Go Pro: unlimited deep dives, every story in Today's News, every AI tool on every card, higher daily Explain and Listen access with fair-use limits, unlimited scrolling and saves, and offline reading. Every category stays free to read. Eligible new subscribers get a 3-day free trial; otherwise billing starts immediately at $12.99/month or $79.99/year. Cancel anytime. Curio is for people who save weird facts at 2AM, love rabbit holes, and want their scrolling to leave something behind. Turn scrolling into learning. Download Curio. — Terms of Use (EULA): https://trycurio.app/terms.html Privacy Policy: https://trycurio.app/privacy.html

Screenshots

delve4 screens
Curio4 screens

Verdict

The call

The clearest difference is in-app purchases: delve at none against Curio's 9. On price, update cadence, 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. Curio sells 9 in-app purchases, starting at $3.49 per 7 days. delve asks for nothing beyond the download.

UpkeepUpdate frequency

delve ships an update every 4 days, Curio every 2 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard1 real difference · 9 level
delve versus Curio: the parameters behind the verdict, then further details
ParameterdelveCurio
PriceFreeFree
Rating—5.0 (14 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—14 — better
Update frequencyEvery 4 daysEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhoneiPhone, iPod — better
Requires iOS16.415.0 — better
Further details — not scored
Size50 MB17 MB
Age rating4+9+
DeveloperSimon RathLeon Kelvin Li

In-app purchases

None

delve

No in-app purchases

9 purchases

Curio

Subscriptions3
  • Curio Pro Weekly$3.497 Days
  • Curio Pro Monthly3 Days trial$12.991 Month
  • Curio Pro Yearly3 Days trial$79.991 Year
One-time6
  • More on This Topic$1.99
  • 1 Custom Feed$2.99
  • 5x More on This Topic$7.99
Show 3 more
  • 5 Custom Feeds$9.99
  • 15x More on This Topic$19.99
  • 15 Custom Feeds$24.99

Questions

Is delve free?
delve is free to download, with no in-app purchases.
Is Curio free?
Curio is free to download, with in-app purchases available.
Do delve or Curio have ads?
Neither delve nor Curio shows ads.
Which is updated more often, delve or Curio?
delve ships an update every 4 days, and Curio every 2 days. Most recently, delve was updated on October 24, 2026 and Curio on October 28, 2026.

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