Updated ASO teardown, US App Store
Lingvano - Learn Sign Language 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
- 101K+25.3% vs previous month
- Est. monthly revenue
- $405K−19.8% vs previous month
- Est. revenue ÷ downloads
- $4.01
- Rating
- 4.9★120.9K 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
Learn sign language fast With just 10 mins/day of practice
- sign languagein name
- What it shows
- A quiz card that says “Choose the correct picture!” with a person signing on video and two photo answers below, on an orange background.
- Why it converts
- Says what the app teaches and how little time it takes in the first frame. The quiz card shows the learning format right away, so a visitor sees what a session looks like.
#2In search results
Perfect for beginners Start signing in your 1st lesson
- beginnersnot in name
- What it shows
- The hand alphabet from A to Z, each letter shown as a hand shape beside a large letter, on a cream background.
- Why it converts
- Speaks to new learners and gives a concrete first step. The alphabet is easy to scan and makes the promise of an easy start feel real.
#3In search results
Deaf teacher video lessons Practice ASL in real conversations
- aslnot in name
- What it shows
- A “Choose the correct sign!” quiz with a signer on video, a “HELLO” label, two answer buttons and a green “Correct!” bar with a Next button, on a red background.
- Why it converts
- Names the sign language (ASL) and the lesson format. Video of a signer is the thing a visitor needs to see to judge a sign language app, and the quiz shows how feedback works.
#4
Master grammar and vocab
- grammarnot in name
- vocabnot in name
- What it shows
- A phone frame with a signer on video showing the word “DEAF”, over a list of word answers, with a streak counter in the top bar.
- Why it converts
- Adds a second goal beyond single signs. The caption is short and large, but the phone frame is mostly covered by the video card, so the app screen behind it is hard to read.
#5
Free dictionary searches
- dictionarynot in name
- What it shows
- A dictionary screen with a “Search for a word” field, letter and Numbers filters, and a signer video opening below.
- Why it converts
- Calls out a free feature, which can lower the barrier to trying the app. The screen is crowded with small letter keys that are hard to read at thumbnail size.
#6
Reward yourself with streaks
- streaksnot in name
- What it shows
- A “1 Day Streak!” screen with a large flame, a row of day circles and a congratulation message, on a yellow background.
- Why it converts
- Shows the habit feature that supports the “10 mins/day” promise from the first image. The large flame reads well. The large flame is easy to read.
Icon and design system
What makes the page read as one brand at a glance.
- One symbol, a hand with a speech bubble tail, points to sign language and communication without any text.
- The orange to red stripes match the orange, red and yellow backgrounds in the screenshots, so icon and gallery share one color family.
- The shape is simple and bold, so it should stay recognizable at small sizes. A white background is worth testing against the tinted and dark icon modes.
- 01
Big caption, plain words
Most captions are short phrases in large white or red type at the top. Words like “fast”, “beginners” and “free” state the benefit without jargon.
- 02
Real lesson video in the frame
Several images show a signer on video inside the quiz. For a sign language app, the video is the product, so showing it early answers a visitor's main question.
- 03
Color changes with a shared palette
The background moves between orange, cream, red and yellow, but all stay in the warm range of the icon. The set feels related while each image stays distinct.
- 04
Layout changes mid-set
The first images crop the app UI to the edges, and later ones use a phone frame. Caption weight and size also differ between images, so the set reads less like one system.
- 05
No proof on the images
No rating, award, press mention or user count is printed. The captions rely on feature claims, such as “Deaf teacher video lessons”, instead.
ASO score breakdown
90 of 100 points. The full rule is under “How the ASO score works” below.
- App name25 / 25
- Uses 30 of 30 characters10/10
- Brand + keyword phrase10/10
- Keywords fill half the name or more5/5
- Screenshots25 / 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 system0/5
- Readable at search-result size5/5
- Trust signal0/5
- Ratings25 / 25
- 4.9 average (full marks at 4.8)15/15
- 120,921 ratings (full marks at 100,000)10/10
- Freshness15 / 15
- Last update 8 days ago (full marks within 30)15/15
Where the points are
- Check caption terms against your subtitle and keywords
6 caption terms aren't in the app name: beginners, asl, grammar, vocab, dictionary, streaks. 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.
- Put the main outcome and the time cost in the first caption, as in “fast” plus “10 mins/day”.
- Show the real learning format in screenshot 1, not only a title.
- Keep captions to a few plain words and set them in large type.
- Use one caption layout and one device treatment across the whole set.
- Keep background colors in the same family as the icon.
- Add a printed rating, award or user count if you have one, so visitors see proof in the gallery.
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. A common pattern is a short brand followed by the main thing people search for, like “Lingvano - Learn Sign Language”, which uses 30. 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. Lingvano uses them for sign language, beginners and asl.
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. Lingvano 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.
- Lingvano - Learn Sign Language 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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