User Guide
Get the most out of Kakei AI
01
Who It's For
Pick the flow that fits your style
The Monthly Recap Type
Spend a few minutes at month-end — big picture only
Screenshot your bank statements each month
Drop your bank’s monthly transaction history screenshots into the app for batch processing.
For each transaction, confirm whether it’s a real income / expense, or a transfer to another account you own (mark those as transfers, not expenses). Credit card payments can simply be recorded as other expenses — no need to track the card detail separately.
The Detail Tracker Type
Add credit card statements on top of bank accounts for full accuracy
Screenshot your bank statements each month
Import each bank account’s monthly statements. AI auto-categorizes. Confirm whether each entry is income / expense or a transfer to another account you own.
Credit card payment → record as a transfer
The credit card payment shown in your bank statement should be recorded as a transfer to your credit card account — not as an expense.
Screenshot your credit card statement, verify balance is zero
Import your credit card’s monthly statement. AI categorizes each purchase. Verify categories are correct — the final credit card account balance should be 0 (fully paid).
02
Use Cases
Investment Accounts
Create the account: enter your historical contributions
When creating an investment account, enter the date and amount of each past contribution. This data is used to calculate your annualized return (XIRR) and cannot be skipped.
Update balance or adjust amounts later
When updating the account balance later:
- With a linked account → treated as a transfer (contribution or withdrawal), no need to manually log a new contribution
- Without a linked account → treated as investment gain or loss (e.g. dividends, unrealized loss)
Accounts Receivable
Business trips, group meals, overseas purchases
Business Trip Expenses
Create a 'Business Trip' receivable account
Add an accounts receivable account named “Business Trip Expenses.” Each expense you front on the trip gets tagged as on behalf of and linked to this account — the balance represents the total pending reimbursement.
Tag trip expenses as 'on behalf of'
For each trip expense you pay out of pocket, select on behalf of and link it to the business trip account. Once reimbursed, record a negative transfer in the account and the balance clears.
Group Meals
Use the split tag on your card charge
For the full meal charge on your card, apply a split tag to indicate it’s being divided among multiple people.
Set the number of shares
Specify how many ways to split — the app calculates each person’s share automatically.
Mark the portions others owe as 'on behalf of'
The portions covering others’ shares get tagged as on behalf of, added to your receivables for tracking.
Overseas Purchases for Others
Create an 'Advances' receivable account
Add an accounts receivable account named “Advances” specifically for overseas purchases made on behalf of others.
Tag each purchase as 'on behalf of'
For each overseas purchase, set it as on behalf of linked to the Advances account. When you’re paid back, record a negative transfer and the balance clears.
03
AI Category Learning
Enable or disable automatic category learning
When enabled, the AI continuously learns from every category you confirm or correct, making future auto-categorization more accurate over time. If you prefer full manual control, you can turn this off at any time.
04
iOS Shortcuts
Set up one-tap or voice-triggered bookkeeping
Batch Screenshot Shortcut (Triple-tap the back of your iPhone)
Open the Shortcuts app and create a new shortcut
Swipe all the way left on your home screen to reach the App Library. Search for Shortcuts, then tap + in the top right to create a new shortcut.
Set up the shortcut actions
Rename it “Take Screenshot”, then add two actions in order:
- Take Screenshot (captures the screen)
- Share (shares the screenshot)
Assign it to Back Tap
Go to Settings → Accessibility → Touch → Back Tap → Triple Tap, then select the “Take Screenshot” shortcut you just created.
Use it
Triple-tap the back of your iPhone. The system screenshots the current screen and shows a share sheet — select Kakei AI to batch import.
Voice Logging Shortcut (Hey Siri, log expense)
Open the Shortcuts app and create a new shortcut
Same as above — go to App Library, search Shortcuts, tap +.
Set up the shortcut actions
Rename it “Log Expense”, then add two actions:
- Dictate Text
- Log Expense (Kakei AI icon) → tap Input, select Dictated Text
Use it
Say: “Hey Siri, log expense.” Siri prompts for input. Speak your transaction, for example:
“Shinkansen, $120”
Kakei AI parses it and creates the entry automatically.
05
Dashboard Sharing
Share your financial dashboard with a partner or family member
Open sharing settings
Go to Settings → Cloud & Sharing → Sharing Settings → Share with more people.
Choose how to send the invite link
Select how to send the invite link — you can send directly to a contact via a messaging app.
Enter the recipient's Apple ID
On the link creation screen, enter the recipient’s Apple ID email address, then tap Share Link.
Recipient accepts the invite
The recipient goes to Settings → Cloud & Sharing → Shared with Me, pastes the link, and taps Accept.
View each other's dashboard
Once connected, switch between Partner or Family views in the dashboard to see each other’s financial stats.
06
FAQ
If Apple Intelligence exists, why do you need a separate on-device AI?
The current Apple Intelligence system still has limitations — recognition accuracy isn’t consistent enough for financial data. I chose to integrate the most reliable lightweight on-device model available right now.
That said, I’m actively watching Apple’s progress. On-device AI has a promising future, and we’ll upgrade when it’s ready.
Will the on-device AI and cloud AI keep getting updated?
Yes, absolutely! As open-source AI models improve and iPhone hardware advances, the on-device AI will be upgraded to be faster and more accurate.
As for cloud AI — the main consideration is that very few models currently offer high free daily usage limits for advanced tasks. Whenever a better free model becomes available, we’ll update to it promptly.
Why does the free version only support 3 accounts?
For most people, Cash / Bank account / Credit card covers the basics just fine.
Also… the developer is human too and needs to eat >< The annual Apple Developer fee alone is nearly $130 USD, not counting the $600+ Mac mini upgrade needed to stay current with new OS versions. Factor in monthly exchange rate updates and ongoing maintenance, and the subscription works out to less than $1/day — with Family Sharing. Think of it as buying your friendly neighborhood dev a coffee. QQ
What if banks start supporting automatic sync someday?
That would be great! If that day comes, this transitional app will have served its purpose.
In reality though, even in the US — where Open Banking is most mature — many regional banks and international accounts still can’t sync automatically. More importantly, a growing number of users simply don’t want to grant any financial app access to their accounts. For those people, fully local AI bookkeeping — where data never leaves the device — will always be the right choice.
Other apps support automatic receipt import. Why don't you?
Automatic receipt scanning sounds convenient, but it has one critical flaw: you can’t tell which account was charged.
In real life, it’s common to pay with your credit card but store the receipt under your partner’s account. By reading bank statements and credit card screenshots directly, the app can accurately track the true flow of money across all your accounts — without any confusion.
Why doesn't the investment account show live stock prices?
I know many people love opening their app daily to check gains and losses.
But the real purpose of tracking finances is to know your annualized return (XIRR) — whether you’re beating the market over time. An investment account’s total is simply “idle cash + current market value.” The goal isn’t to watch prices tick — it’s to know, at any moment, your true current value and real annualized return.