Smart Calculator Pro vs Stellata
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Smart Calculator Pro
This all-in-one calculator offers basic, scientific, and fraction calculations, along with unit conversion and financial tools. It features an editable input, a widget, and a keyboard extension for convenient use on iPhones and iPads. Track health metrics and convert numbers to words with this comprehensive utility.
- Basic and scientific calculations
- Fraction and editable input
- Unit and currency converter
- BMI, date, and loan calculators
- Number to words conversion
- Hexadecimal converter
- Calculator widget and keyboard
Read full descriptionHide full description
No Ads, All-in-one Calculator with voice, history for the iPhone and iPad. ◉ Advanced & Smart Calculator+ ▸ Basic Calculator (+, -, x, ÷, %, (), ...) ▸ Scientific Calculator (e, pi, π, x!, ^, √, Ln, log, trig, …) ▸ Editable Input (Tap to modify, backspace & update results instantly) ▸ Calculator Widget (for iOS 17.0+) ▸ Calculator Keyboard ◉ Fraction Calculator: ▸ You can calculate addition, subtraction, multiplication, and division of fractions. ▸ You can also perform calculations between decimals and fractions, Quickly and easily check children's fraction math problems. ◉ Unit Converter ▸ Supports length, area, volume, speed, pressure, power, weight, temperature, energy, time, angle, density, force, torque, and the data capacity. ◉ BMI Calculator: ▸ Measure the body mass index (BMI), the basal metabolic rate (BMR), and body fat percentage (BFP). ▸ Save the BMI、BMR、BFP indicators as notes to keep track of your health status at any time. ◉ Date Calculator: ▸ Flexibly calculate the interval of a specific date or anniversary with accuracy to the month, week, day, hour, minute, and second. - Help kids quickly check math homework for time calculations. ◉ Percentage Calculator: ▸ You can easily calculate the percentage increase or decrease between numbers. ▸ You can also calculate what percentage one number is of another. ◉ Currency Converter ▸ You can calculate currency exchange rate conversions, including dollar, euro, yen, yuan, etc. ◉ Loan Calculator ▸ Calculate total interest, total payment based on loan principal and interest rate. ▸ Share the result to you friends or relatives. ◉ Savings Calculator: ▸ Enter the deposit amount, interest rate and term and interest and final savings balance will be calculated. ◉ Numbers to words ▸ Convert numbers to words for writing checks and legal documents. ◉ Hexadecimal Converter: ▸ Enter a value, and generate a value which converted between binary, octal, decimal, and hexadecimal. ◉ OTHER FEATURES: ▸ Keyboard vibration & Sound. ▸ Thousands separator. ▸ Multiple skin themes. ▸ Support Multitasking (iPad). More features are being developed~ Please Come to download, just enjoy it ^_^ Disclaimer: The developer of this application makes no warranties regarding the accuracy, reliability, or suitability of any calculation results or information provided by this application. The developer shall not be liable for any loss, whether direct or indirect, arising from the use of any calculation results or information provided by this application. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula.
Stellata
This app helps you save and organize visual content from any source, automatically grouping similar items. Explore your saved items in various visual formats like grids, boards, or even a 3D galaxy. Collaborate with friends by sharing links directly between devices.
- Automatic visual grouping of saves
- Multiple visual display modes (Grid, Board, Wall, Galaxy, Sphere, Earth, Timeline, Projects)
- Direct device-to-device sharing
- Import from Instagram, Pinterest, Are.na, Obsidian
- Visual and text-based search
- Collaborative moodboards for projects
Read full descriptionHide full description
Some things stay with you. The image you stop for. The idea you come back to. Stellata is where they go. Tap Share in any app — Instagram, TikTok, X, YouTube, Pinterest, a blog, anything — and the picture, the words and the video come across with the link. Screenshots, photos, videos and PDFs come in too, no link needed. Then it starts to sort itself. ALIKE SAVES DRIFT TOGETHER Every link is read on your phone: its words, and what its picture shows. Nothing is sent anywhere. Tags appear on their own, and saves that belong together drift into groups in the galaxy, so even from far off you can see what your saving is really about. The same links gather into themes you can filter by — branding, motion, space, whatever you turn out to be into. EIGHT WAYS TO LOOK Grid — everything you saved, at a glance, image first. Board — your saves spread over one plane, like a wall. Wall — your pictures in columns that go on forever, whichever way you go. Galaxy — your library as a world in space, alike saves floating together in groups. Tap a link and a light travels out through everything it connects to, by picture, by meaning, by tag, through its own group and across to the others. Sort it by color, by time, by site or by style, or place words of your own, and the links they're about gather around them. Sphere — step inside the galaxy, your saves all around you, above and below. Drag to look around. Earth — your saves light up where in the world they are, on a globe or on a map. Timeline — every save on one line, newest first, opening out as you scroll back through the days. Projects — a space for a trip, a piece of work, or whatever you're into this week, each with a moodboard to lay out by hand: move, pinch and twist the pictures, then draw, write and join them with arrows. Send one out as a lookbook, a PDF of every save. Hold a finger still and draw a loop in the galaxy or on a board, and everything inside is picked, ready to move, share or delete together. SIT DOWN WITH A FRIEND Put two phones side by side and the ties between your saves and theirs run from one screen to the other. See where your tastes meet, throw a link across, and leave with a little of theirs. The phones talk to each other directly — nothing goes through a server, and only what you choose to bring ever leaves your phone. BRING WHAT YOU ALREADY SAVED Your Instagram saves come across, and your Pinterest boards, Are.na channels and Obsidian vault too, so you start with your real collection instead of an empty page. FIND YOUR WAY BACK Type or say what you're looking for, or tap + to pick a color, a style or a photo, and the saves that fit fly in close. Or describe what a picture shows, like “cracked ice,” and Search finds it, even when no title or tag says so. It reads the words in your pictures too, so a screenshot turns up by what it says. Point the camera at a poster or a wall to see the saves that look most like it. Filter by site, by type, by color. SCAN WHAT YOU SAVED Smart Scan reads a save for what it holds: a recipe to cook from, its timers ringing even on a locked phone, a workout's sets, a trip's places on a map, an event's date, a product's specs, an app's type and colors. Play a video, and Stellata names its song. ON YOUR MAC TOO Stellata is on the Mac as well, your library kept in step by iCloud, and Stellata Unlimited comes along. IT STAYS YOURS Everything syncs through your own iCloud, and previews are kept on the phone, so your library is there with no signal. Share a project and a few people can save into it together, on one moodboard. No account to make, no feed, no one else's algorithm. STELLATA UNLIMITED The free plan holds 30 links. Unlimited holds any number, as a monthly subscription or a one-time purchase. If Unlimited ends, nothing is deleted: your newest 30 stay open and the rest wait for you. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://stellata.app/privacy.html
Screenshots
Verdict
The clearest difference is price: Stellata at Free against Smart Calculator Pro's $7.99. Stellata also leads on update cadence (every 3 days vs every 2 months) and ratings volume (7 vs 2). Smart Calculator Pro's advantage is in-app purchases (none vs 2) and iOS requirement (14.0 vs 18.0). On rating, 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
Stellata is free to download; Smart Calculator Pro costs $7.99 up front. Stellata sells 2 in-app purchases, starting at $1.99 per month. Smart Calculator Pro asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Smart Calculator Pro against 5.0 for Stellata. Both are backed by a comparable volume of ratings — 2 and 7 respectively.
Smart Calculator Pro ships an update every 2 months, Stellata every 3 days. The most recent releases landed on October 21, 2026 and October 31, 2026 respectively.
| Parameter | Smart Calculator Pro | Stellata |
|---|---|---|
| Price | $7.99 | Free — better |
| Rating | 5.0 (2 ratings) | 5.0 (7 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 | 7 — better |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 14.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 14 MB | 25 MB |
| Age rating | 4+ | 17+ |
| Developer | 晖明 甘 | Abdullah Alkhatib |
Customer experience
Smart Calculator Pro
Stellata
In-app purchases
Smart Calculator Pro
No in-app purchases
Stellata
- Stellata Unlimited$1.991 Month
- Stellata Unlimited Lifetime$14.99
Questions
Is Smart Calculator Pro free?
Is Stellata free?
Which has better reviews, Smart Calculator Pro or Stellata?
Do Smart Calculator Pro or Stellata have ads?
Which is updated more often, Smart Calculator Pro or Stellata?
Other comparisons















