Bill Calendar vs CentZero
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bill Calendar
This personal finance app helps you track bills and expenses to avoid missed payments. It offers a visual calendar, manual payment tracking, and summaries of your spending. Stay organized with recurring and one-time payment management.
- Manual payment tracking
- Recurring and one-time payments
- Smart calendar for day counts
- Visual overview of paid/unpaid
- Monthly spending summaries
- Private on-device data storage
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Bill Calendar is a simple way to organize recurring and one-time bills, due dates, expected amounts, reminders, and payment status. FEATURES • Calendar and daily bill summaries • Recurring, one-time, weekly, and custom schedules • Paid, unpaid, skipped, and excluded bill tracking • Bill reminders and a home-screen widget • Optional account sync across supported devices • Optional Plaid-powered detection of recurring bills • Monthly and yearly summaries • English and Korean interface Guest entries can remain on your device. If you create an account and use sync, selected account, bill, preference, and subscription information is processed by the Bill Calendar service. Optional bank connection is provided through Plaid. The Free plan is supported by advertising. Premium removes ads and unlocks cloud sync, connected-bank features, and additional insights. Bill Calendar is an organizational tool. It does not make payments, confirm bank balances, or provide financial, legal, tax, or investment advice. Privacy Policy: https://bill-calendar.com/privacy Terms of Service: https://bill-calendar.com/terms Support: https://bill-calendar.com/support
CentZero
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Stop paying credit card annual fees you don't have to. CentZero tracks your credit cards, alerts you before annual fees are charged, and walks you through the exact steps to get them waived — phone IVR paths, in-app routes, and chat shortcuts for each bank. Designed for cardholders in Hong Kong and Taiwan, supporting 21 major banks and 170+ card products with verified fee data. SUPPORTED BANKS • Hong Kong: HSBC, Standard Chartered, Citibank, Hang Seng, Bank of China, BEA, Amex, DBS, CCB Asia, BOCOM, ICBC Asia, CITIC • Taiwan: CTBC, Cathay United, E.SUN, Taishin, Fubon, Mega, First Bank, Hua Nan, HSBC Taiwan FEATURES • Track all your cards — fee amounts, charge dates, waiver status • Push notifications 14 days before any fee is due • Step-by-step waiver instructions for every supported bank • One-tap call or deep-link into your bank's app • Scan your card to auto-detect bank and card type (on-device OCR, nothing uploaded) • Track loyalty points and miles with expiry alerts — Asia Miles, Avios, yuu, and 20+ programs 100% FREE No paywalls, no subscriptions, no hidden fees. Your annual fee savings are yours to keep. PRIVACY FIRST CentZero never stores card numbers or sensitive financial data. Card scanning is processed entirely on your device. Terms of Use: https://walkprints.github.io/CentZero/terms.html Privacy Policy: https://walkprints.github.io/CentZero/privacy.html
Screenshots
Verdict
The clearest difference is ads: CentZero at none against Bill Calendar's shown. Bill Calendar's advantage is device support (3 vs 1). On price, in-app purchases and iOS requirement 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 | Bill Calendar | CentZero |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (14 ratings) — better | — |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Every 6 months | — |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 14 MB | 82 MB |
| Age rating | 4+ | 4+ |
| Developer | Bumjin Park | Chris Tang |
In-app purchases
Bill Calendar
No in-app purchases
CentZero
No in-app purchases
Questions
Is Bill Calendar free?
Is CentZero free?
Do Bill Calendar or CentZero have ads?
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