Calculus
Solve derivatives, integrals, and limits with step-by-step AI explanations.
2.0
Age4+
Mobile apps
for everyday life
An independent mobile studio making focused apps for iPhone and Android.
About us
Alic Systems is an independent mobile studio that designs, builds and grows consumer apps for iPhone and Android.
We combine product design, AI and App Store know-how to make focused apps that help people study, write, understand the world around them and run their business. Every app is made in-house, from the first sketch to the App Store listing.
apps on the App Store
What we make
Four kinds of problem. One app for each.
Our logo has four pieces, and so does our catalogue. Each colour is a category of everyday problem we build for, with apps that do one job well.
Our apps
View Photo Solver 
View Math Solver
Apps people rely on
View Calculus
Photo Solver
Snap a photo of any geometry problem and get instant visual solutions.
App StoreNew
Age4+
Math Solver
Snap a photo of any math problem to get instant answers and explanations.
App StoreNew
Age4+
Every app we've shipped
All 23 apps are free to download on the App Store.
Studio
Have an app idea? Build it with us.
The team behind 23 live apps takes on a small number of client projects each quarter, from first sketch to App Store launch.
New apps
Design, iOS and Android build, backend and store launch.
AI features
Chat, writing, summaries and photo recognition that hold up in real use.
App Store growth
Listings, screenshots and keywords that get apps found.
Ongoing updates
We keep apps fast, current and well reviewed after launch.
Blog
All app blogsFrom the blog
CalculusSymbolab vs Mathway: Which Is Better for Calculus Homework?
Symbolab vs Mathway for calculus, compared from each app's official listing: 500+ calculators vs 11 subjects, free steps, pricing models and who each suits.
October 15, 2026 · 7 min read
CelaHow to Do a Stock Take: 7 Steps for a Small Shop
How to do a stock take in a small shop: plan, freeze sales, count twice, fix the gaps. One study found 65% of a retailer's stock records were wrong.
October 15, 2026 · 8 min read
Photo SolverExterior Angle Theorem Explained: Formula, Proof and Examples
The exterior angle theorem explained: why an exterior angle equals the two remote interior angles, a short proof, and 4 worked examples, including algebra.
October 13, 2026 · 7 min readLet's build something
people keep.
Questions about an app, press, partnerships or a project of your own. A real person replies within one working day.