Kairoku vs Budget Left
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kairoku
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A simple expense tracker for logging spending the moment it happens. No bank or card linking, no receipt scanning, and no income tracking. Kairoku focuses on one thing: making it easy to keep recording. ■ One-tap presets Coffee, lunch, train. Pin your frequent expenses as presets at the top of Home. One tap finishes the entry—often before you leave the register. Mistakes undo in a moment. ■ Remaining budget front and center Set a monthly budget and Home shows how much you can still spend this month—large and clear. Seeing what’s left, not only what you’ve spent, makes pacing the second half of the month feel natural. Overspending shows plainly in red. ■ Fast manual entry For anything without a preset, enter the amount and pick a category. Amount chips (+100 / +500 / +1000) and your last category keep typing to a few seconds. Memo and date only when you need them. ■ Automatic totals Reports show category breakdowns and day-by-day trends in charts. Compare with the same day last month so you can answer “am I overspending?” right away. ■ Log from widgets Home Screen widgets show remaining budget and presets. Record directly from a widget button without opening the app. ■ Built to help you stick with it ・Optional daily reminder notifications (set any time) ・Add your own categories and rename them; hide ones you don’t use ・Light and Dark Mode ■ Peace of mind All records stay on your device. No account is required, and your expense logs are never sent off the device.
Budget Left
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Budget Left is a simple expense tracker that shows how much of your budget remains. Enter what you spend and see your remaining amount, days left and daily spending guide on one screen. WHY BUDGET LEFT • One active budget: set an amount, a month or custom dates, and a currency. • Quick expense entry on the home screen, with optional notes. • Remaining amount, inclusive days left and a daily guide. • Edit or delete entries and record refunds in History. • Keep previous budgets when you start the next one. • Eight currencies: JPY, USD, EUR, KRW, CNY, GBP, CAD and AUD. One currency per budget; no conversion. • Ten interface languages and system dark mode. • No account required; expense recording works offline. The app is free and uses one small home-screen banner. Advertising is hidden while typing or editing. Privacy choices, when required, are available in Settings. Consent or network failures do not prevent recording expenses. The remaining amount is based only on entries you record. It is not your bank balance or a guarantee that you can spend it. Refunds restore your budget; they are not income tracking. Periods do not renew or carry over automatically. Data is saved on your device. OS backups and device transfer may include it, but restoration is not guaranteed. Deleting the app may delete your data. There is no account or cloud restore service.
Screenshots
Verdict
The clearest difference is iOS requirement: Budget Left at 15.0 against Kairoku's 17.0. On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Kairoku | Budget Left |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 9 days |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Daisuke Minami | DOTNULL Co.,Ltd |
In-app purchases
Kairoku
No in-app purchases
Budget Left
No in-app purchases









