Comparison

yen vs Simple Expense Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

yen

Features
Read full description

Most budget apps want to log into your bank account. yen-yen doesn't. You type what you spent, hit save, and get on with your day. That's the whole interaction. It's built around kakeibo (家計簿), the Japanese household-ledger habit that's been around for over a hundred years. Every entry asks four small questions: · Did I need it? · Did I just want it? · Does it feed something I love? · Did I see this coming? Sit with the answers for a minute. That minute is the point. FREE, FOREVER Multi-account ledger across cash, banks, cards, and loans. Multi-currency with historical FX so a coffee in Tokyo last March still reads in JPY but totals correctly in your home currency. Budgets and bill reminders. Kakeibo classification on every entry. CSV / JSON import + export. Photo attachments for receipts. Account deletion you run yourself. No ads. We don't sell your data. We never ask for your bank password. OPTIONAL ADD-ONS · Sharing a household ledger with a partner or roommate. · AI-assisted statement parsing — you paste the lines, you approve every row, nothing auto-saves to your ledger. · Longer audit retention. · Priority support. WHAT YEN-YEN WILL NEVER DO · Connect to your bank. · Auto-write AI guesses into your ledger. · Send push notifications about your spending habits. · Show ads. ACCOUNT DELETION In the app: Settings → Account → Delete. You get 14 days to undo it, after which the data is hard-deleted within 24 hours. The Data Safety form lists the same web flow at https://kensaur.us/yen-yen/account/delete. HOSTING + PRIVACY Hosted on Supabase, encrypted in transit and at rest. Privacy policy: https://kensaur.us/yen-yen/privacy Terms: https://kensaur.us/yen-yen/terms Made by kensaurus LLC in Tokyo. Questions or bug reports go to yenyen@kensaur.us — a real human reads them.

About

Simple Expense Tracker

Features
Read full description

Simple Expense Tracker is an easy budget and spending app for everyday money management. Record daily expenses, add planned payments, and check your remaining budget at a glance. The app automatically shows your actual spending, planned total, daily budget, and monthly pace so you can avoid overspending without complicated bookkeeping.

Screenshots

yen4 screens
Simple Expense Tracker3 screens

Verdict

The call

The clearest difference is ads: yen at none against Simple Expense Tracker's shown. yen also leads on update cadence (every 2 days vs every 6 days). Simple Expense Tracker's advantage is iOS requirement (13.0 vs 15.1). On price, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

yen ships an update every 2 days, Simple Expense Tracker every 6 days. The most recent releases landed on September 28, 2026 and September 19, 2026 respectively.

Scorecard3 real differences · 3 level
yen versus Simple Expense Tracker: the parameters behind the verdict, then further details
ParameteryenSimple Expense Tracker
PriceFreeFree
Update frequencyEvery 2 days — betterEvery 6 days
AdsNo — betterYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.113.0 — better
Further details — not scored
Size74 MB24 MB
Age rating4+4+
Developerkensaurus LLCYUKI HIGASHI

In-app purchases

None

yen

No in-app purchases

None

Simple Expense Tracker

No in-app purchases

Questions

Is yen free?
yen is free to download, with no in-app purchases.
Is Simple Expense Tracker free?
Simple Expense Tracker is free to download, with no in-app purchases.
Do yen or Simple Expense Tracker have ads?
Simple Expense Tracker shows ads; yen does not.
Which is updated more often, yen or Simple Expense Tracker?
yen ships an update every 2 days, and Simple Expense Tracker every 6 days. Most recently, yen was updated on September 28, 2026 and Simple Expense Tracker on September 19, 2026.

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