Updated ASO teardown, US App Store
Daily Hangul App Store optimization
A Education app's App Store page, taken apart: the screenshots and why each one helps people decide to download, the icon and design system, and an ASO score out of 100.
- Est. monthly downloads
- 35K+284.4% vs previous month
- Est. monthly revenue
- $38K+1.4% vs previous month
- Est. revenue ÷ downloads
- $1.09
- Rating
- 4.7★496 ratings
Downloads and revenue are third-party est. for the US App Store, latest month vs the month before. Revenue includes renewals, so revenue ÷ downloads is a rough ratio, not what a new user pays. Estimates as of ; rating and dates from the App Store, .
Screenshots and why they convert
6 screenshots of up to 10. The first 3 show in search results when there's no preview video.
#1In search results
Join 70K+ Korean Learners On the #1 Korean Lock Screen Learning App
- korean lock screen learning appnot in name
- What it shows
- A “Join 70K+ Korean Learners” headline, a laurel badge reading “#1 Korean Lock Screen Learning App”, and the top of a phone with a lock screen showing a Korean word.
- Why it converts
- Names the app type in the first frame, so a visitor knows what it is. The user count and “#1” are the app's own printed claims. They are specific, though the image does not say who ranked it or when.
#2In search results
Daily Hangul Effortless Korean Learning
- korean learningnot in name
- What it shows
- A phone lock screen with a clock, a Korean word with its romanization and meaning, and an example sentence, over a cherry blossom wallpaper.
- Why it converts
- Shows the core idea in use: a word appears on the lock screen with no need to open the app. The app name sits next to the promise.
#3In search results
Daily Stories and Sentences Tailored To Your Level
- storiesnot in name
- What it shows
- A reading screen with a short Korean story, a highlighted sentence, its romanization and English translation, and a Read button.
- Why it converts
- Shows what the learner actually does in the app and that text comes with help. “Tailored To Your Level” speaks to beginners who worry the content is too hard.
#4
Widgets and Push Notifications To Keep You On Track
- widgetsnot in name
- push notificationsnot in name
- What it shows
- Five notification banners with the app icon, each with a short English prompt and a Korean sentence.
- Why it converts
- Shows the habit mechanism: the app reaches the learner without being opened. Real banners make the claim easy to picture.
#5
Master Korean One Day At a Time
- koreannot in name
- What it shows
- A lock screen with a clock, a Korean word with meaning and a sentence, over a pale flower wallpaper.
- Why it converts
- Repeats the lock screen idea with a short, easy-to-read caption. The promise is clear, but the caption is general and the lock screen view is the same one seen earlier.
#6
Go Deeper With Standard, Informal and Formal Sentences
- formal sentencesnot in name
- What it shows
- A word card for 세상 with an Example Sentences sheet, listing a standard and a formal sentence with speech-level tags and audio buttons.
- Why it converts
- Shows depth for learners who want more than one word a day: example sentences by politeness level.
Icon and design system
What makes the page read as one brand at a glance.
- One element, the Korean word 한글 (Hangul), tells a visitor the app is about Korean.
- Text is the whole icon. It is large and bold, so it stays readable when small.
- Dark blue on cream matches the blue used in the screenshots, so icon and gallery read as one brand.
- 01
Social proof first
The opening image leads with a user count and a “#1” laurel badge. Both are printed claims, and the image names the app type right below them.
- 02
Lock screen as the hero
The product is a lock screen word, so the phone shows exactly that. A visitor sees the feature working before reading about it.
- 03
Two-tier captions
A bold dark headline, then a second line that adds the detail. The headline is large and carries the message on its own.
- 04
Real prompts on screen
The notification image shows actual banners with short prompts. The visitor can imagine what the daily nudge looks like.
- 05
One color system
Most images use the same soft blue gradient, dark navy type and phone frames. The set matches the blue of the icon.
ASO score breakdown
67 of 100 points. The full rule is under “How the ASO score works” below.
- App name4 / 25
- Uses 12 of 30 characters4/10
- Brand + keyword phrase0/10
- Keywords fill half the name or more0/5
- Screenshots35 / 35
- Caption on every screenshot5/5
- Each caption names a feature people search for10/10
- First screenshot shows the main use5/5
- One consistent design system5/5
- Readable at search-result size5/5
- Trust signal5/5
- Ratings13 / 25
- 4.7 average (full marks at 4.8)13.1/15
- 496 ratings (full marks at 100,000)0/10
- Freshness15 / 15
- Last update 12 days ago (full marks within 30)15/15
Where the points are
- Use the rest of the app name+21 pts
18 characters are free. Add the next most important search term.
- Ask happy users for a rating+12 pts
4.7 stars from 496 ratings. Apple's in-app rating prompt can be shown up to 3 times a year; show it right after a user finishes something in the app.
- Check caption terms against your subtitle and keywords
7 caption terms aren't in the app name: korean lock screen learning app, korean learning, stories, widgets, push notifications, korean, formal sentences. Captions don't count for search; the subtitle and the 100-character keyword field do.
Apply it to your app
A checklist for your next product page update.
- Say what the app is in the first image, in plain words.
- Print a user count or ranking only if it is true and you can name the source.
- Show your main feature working in the phone frame, not just described.
- Make the headline large and keep the detail line short and dark enough to read.
- Use real examples, such as actual notifications or screens, instead of mockups of ideas.
- Match the icon color to the screenshot palette.
How the ASO score works
- 01
App name, 25 points
Up to 10 for how much of Apple's 30 characters it uses, 10 for a brand + keyword structure, 5 when keywords fill half the name or more.
- 02
Screenshots, 35 points
Captions on every image, captions that name searched features, a first screenshot that shows the main use, one design system, readability at search size, and a trust signal.
- 03
Ratings, 25 points
Up to 15 for the average (from 4.0, full marks at 4.8) and 10 for the count (from 1,000, full marks at 100,000 ratings).
- 04
Freshness, 15 points
Full marks for an update in the last 30 days, falling to zero at 180 days. 85+ is excellent, 70+ strong, 50+ fair.
Common questions
What is an ASO score?
A 100-point check of the parts of an App Store page you control: the app name, screenshots, ratings and how recently the app was updated. It's our own scoring rule, shown in full on this page, not a number from Apple. Use it to compare your page with apps that already sell well in your category.
How long can an app name be on the App Store?
30 characters. Apple also gives you a 30-character subtitle and a 100-character keyword field for more terms.
Which screenshots show up in App Store search results?
The first one to three, when the app has no preview video. That's why the first three should cover the main reasons people download. Daily Hangul uses them for korean lock screen learning app, korean learning and stories.
How many screenshots can an iPhone app have?
Up to 10 per device size. Apple recommends focusing each screenshot after the first on one main benefit or feature. Daily Hangul uses 6.
Where do the download and revenue numbers come from?
They're third-party estimates for the US App Store, not figures reported by the developer. Treat them as a sense of scale. Growth compares the latest month with the month before.
Do screenshot captions help an app rank in search?
Apple says search results use text matches in the app name, subtitle, keywords and primary category, plus user behavior such as downloads, ratings and reviews. Captions aren't on that list: they help people who already see the app decide to download. When a caption names something people search for, put that term in the keyword field too.
Where the numbers come from
- Apple: Creating your product page
- App name limit (30 characters), up to 10 screenshots, the first one to three shown in search results, keyword field.
- Apple: App Store search
- Search results use text relevance (name, subtitle, keywords, primary category) and user behavior (downloads, ratings, reviews).
- Apple: Ratings, reviews and responses
- The in-app rating prompt can be shown up to three times in a 365-day period.
- Daily Hangul on the App Store
- Name, developer, category, icon, screenshots, rating, release and update dates (US storefront), checked Nov 4, 2026.
- Downloads and revenue
- Third-party est. for the US App Store, latest month, pulled Oct 29, 2026. Not reported by the developer.
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