Finance
Ask about your money
Your assistant answers from your own history, and never logs anything without showing you first.
A family of apps · one account
Everyday apps,with the AI built in.
Keep track of shared spending, log your training and find what you put away. Each Costia app focuses on one part of everyday life. One Premium subscription covers the whole family.
- No ads
- No trackers
- Works offline
The apps
One app for each part of your day.
Finance, Training, Inventory and Ambrosia are available now. Each app has a clear job, and one Premium subscription covers all of them.
MoneyAvailable now
Costia Finance
Split the bill with nothing to install.
Track what you spend, split what you share and know who owes what. Scan the receipt, share a link — everyone ticks theirs.
Discover Finance
StrengthAvailable now
Costia Training
Log the set. Keep the record.
A strength-training log that keeps a history rather than a number, draws every lift’s progression and tells you what to put on the bar next. It works offline in the gym and syncs to your Costia account.
Discover Training
HomeAvailable now
Costia Inventory
Know where you put it.
Map your home, record where things are kept and find them again by searching or asking the assistant. Move a box and everything inside moves with it. A Costia account is required.
Discover Inventory
MealsAvailable now
Costia Ambrosia
The week’s menu, for everyone at the table.
Plan what your household eats, and what to buy where. A Costia account is required.
Discover Ambrosia
And for people who build with Claude Code
The next one
More Costia apps are on the way. Your account and your Premium subscription will already cover them.
New in the family
Available nowWhat are we eating this week? Ambrosia has it planned.
Costia Ambrosia plans your household’s meals from the dishes you already cook, gives each person a menu of their own when they eat differently, and turns the week into a shopping list for each supermarket. Now on iPhone, iPad and Android in Spain, with your Costia account.
- One menu, or one each
- The list, by supermarket
- Your dishes, ready to cook
- Careful with what each one avoids
Costia Premium
Premium: the AI plans with you
- Type your answers while you plan the menu, on the web too
- What the app can’t make out by itself, the AI turns into the card’s buttons
- Text only: your voice stays on the phone, and names become keys before anything is sent
Coming next
- Change the week with one sentence: “more fish, and no cooking on Thursday”
- An assistant that changes the menu with you
- Recipes from Instagram, TikTok or a photo of a cookbook page
- A photo of the receipt updates prices and the pantry
- New dishes for your tastes, and variations of the ones you cook
One account
One account. One Premium subscription.
A Costia account is required for Finance, Training, Inventory and Ambrosia on phone and web. The same account gives you Premium in every app.
- One sign-in
- Sign in with Apple, Google, email or a passkey.
- One subscription
- Costia Premium bought in one app is already active in the others.
- All the AI, at once
- Premium covers AI features across Costia apps as they become available, with no separate plan for each app.
- Free for real
- Use the core features for free. Premium adds AI tools when you want them.
CostiaPremium
- Costia Finance
- Costia Training
- Costia Inventory
- Costia Ambrosia
- Costia Claude Tools
- The next one
Every AI feature, in every appFinance + Training + Inventory + Ambrosia + Claude Tools
AI, where it earns its place
AI that saves you work and asks before it acts.
Finance can read a receipt, fill in an expense and answer questions about your spending. The assistant shows you what it plans to change so you can check it first.
Finance
Hand it the receipt
Scan a ticket and the expense is already filled in: amount, date, merchant and every item on it.
Finance
Split by talking
“I’m not paying for any of the meat” — and your share is recalculated. Save it as a rule for next time.
Finance
Search by meaning
Search for “milk” to find the expense that includes it, even if you do not remember the shop.
Training
A coach that explains itself
Rules on your phone decide the numbers; the assistant explains, answers and adapts the session — it never puts a load on the bar.
Training
A routine in your own words
Describe what you want and the designer adapts a proven plan to your kit, days and time.
Inventory
Ask where you left it
“Where are the Christmas lights?” The assistant answers from your own inventory, with the room, the shelf and the box.
Inventory
Say what you moved
Tell the assistant what you moved, or use Gemini or Siri. It records the change in your inventory, where you can undo it.
Inventory
Your key, your computer
On Windows it runs on your own AI key — or a model on the same machine — and works out search by meaning locally.
Finance’s and Inventory’s AI features are live; Training’s are switching on now.
How we build
Your data is not the product.
No ads. No trackers.
No behavioural analytics and no advertising identifier in any Costia app. Nobody is buying what you do, because it is not for sale.
Offline first
Log it in the car park or between sets with no signal. It syncs when you are back.
You stay in charge
The AI proposes, you confirm. And you can delete your account from inside the app or from the web.
Only what it needs
No precise location, contacts or bank credentials. One Costia account signs you in to every app.
Questions
What is Costia?
A family of apps for everyday life, each doing one job properly, with AI where it saves you work. Costia Finance is for your money, Costia Training is for the gym and Costia Inventory is for everything you keep at home. They share one account and one Premium subscription.
Do I need an account?
Yes. Finance, Training, Inventory and Ambrosia ask for a Costia account on phone and web — the same one for all four. Inventory’s private Windows edition is the exception: it needs no account.
What does Costia Premium include?
The AI features of every Costia app — receipt scanning, email invoices, splitting by talking, semantic search and the assistant in Finance; the coach’s assistant and routine designer in Training; the assistant, changes told in your own words and search by meaning in Inventory; answers typed in your own words while you plan the menu in Ambrosia — under one subscription.
I bought Premium in one app. Do I pay again in another?
No. Premium belongs to your Costia account, not to an app. Buy it in Costia Finance, Costia Training, Costia Inventory or Costia Ambrosia and it is active in every other Costia app.
Where does my data go?
Finance, Training, Inventory and Ambrosia sync your data through Costia’s servers when you use their apps. AI features send the information needed for your request to a model provider. Inventory’s private Windows edition never connects to Costia’s servers.
Which devices?
iPhone, iPad and Android. Costia Finance, Costia Inventory and Costia Ambrosia also run in any browser on the same data, and Inventory has a private edition for Windows.
Start with the app you need.
All of them are free to use. Premium, when you want it, covers the family.