Comparison

Zero Password vs NinTodo

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

Head to head
About

Zero Password

Read full description

Why is Zero Password Manager more trustworthy? - We have been developing many verifiable security technologies instead of "Please trust the developers". - We have consistently improved the security instead of always saying, "The UI has been updated again". 【Solid security model】 - True offline keeps your data isolated from the Internet. Your passwords are only stored on your phone and can never be uploaded to the cloud secretly. - Security chip encrypts your data on your device. Mobile wallets use the same chip to protect your card information, so if you trust the mobile wallet, you can trust Zero. - Neither require sign-up nor collect personal information. We don't have any information on you and don't know who you are, let alone bother you with ad tracking. - Biometric authentication to safely unlock the app. Or you can set a master password for an extra layer of protection. Of course, we also use other standard encryption technologies like AES-256 and PBKDF2. 【Feature-rich and easy to use】 - Account security templates Hundreds of account templates, including Apple ID, Capital One, Binance, Epic, etc., can hold all sorts of security information you can think of, such as passwords, recovery keys, and security q&a. Some templates also have security tips. - Save payment cards As long as you enter the card number, Zero password manager can automatically identify the card issuer, card organization, etc. It's easier than ever to store payment card information. - Autofill passwords Fill in your username and password on mobile apps or websites with only two taps. Zero password manager will also automatically check the security of the app or website you are filling in. - OTP authenticator Zero password manager integrates OTP (one-time password) authenticator to facilitate 2FA. You can keep passwords and OTPs in just one record. - Desktop browser extension With the extension, you can scan QR codes with the app to safely fill passwords into desktop browsers (Safari, Chrome, Edge, and Firefox). - Password generator Besides the most basic options like numbers, letters, and length, you can also choose to include certain special symbols, emojis, etc., in your passwords. It works for websites with complex password rules. - Find back master password Forgot your master password? Don't worry. You can ask your friends to help find it back; they can't peek at any data. More great features like password meter, password timeline, password change reminder, etc. are all available in Zero password manager.

About

NinTodo

Features
Read full description

NinTodo is a daily to-do list that's all about today. No projects, no tags, no inbox — just today's tasks, done one by one. No account needed. Works fully offline. Your data stays on your device — 100%. FOCUSED ON TODAY • Tasks organized by day; swipe left or right to move between days • Pull down the calendar bar for a full month view; days with tasks are marked • Three task states: To Do, In Progress, Done • Tap the month title to jump around, tap again to return to today SMOOTH GESTURES • Long-press to drag and reorder, with auto-scroll near the edges • Multi-select mode: select all, copy to clipboard, bulk delete • Snooze tasks to tomorrow, next Monday, next week, or any date • Quick add from the bottom bar with auto-focused input INSIGHTFUL STATS • Monthly and yearly views to look back on your effort • Completion rate, longest streak, busiest day • Daily tasks-vs-done bars and a 24-hour completion chart • Tap any month in the year view to drill down PRIVACY FIRST • Everything stored on-device; deleting the app deletes everything • No personal data collected • Pro: app lock and privacy shield against prying eyes MAKE IT YOURS • Four themes: Light, Midnight, Journal, Coral — follows system dark mode • Multiple fonts and adjustable text size • English & Chinese NINTODO PRO One-time purchase, yours forever, with Family Sharing. • App Lock with a 6-digit PIN and flexible lock timing • Privacy Shield masks content the instant you leave the app • All future Pro features included Questions or ideas? hi@90byte.com

Screenshots

Zero Password4 screens
NinTodo4 screens

Verdict

The call

The clearest difference is in-app purchases: Zero Password at none against NinTodo's 1. NinTodo's advantage is update cadence (every 3 days vs every 15 months). On price, ads, device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. NinTodo sells 1 one-off in-app purchase. Zero Password asks for nothing beyond the download.

UpkeepUpdate frequency

Zero Password ships an update every 15 months, NinTodo every 3 days. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 4 level
Zero Password versus NinTodo: the parameters behind the verdict, then further details
ParameterZero PasswordNinTodo
PriceFreeFree
Update frequencyEvery 15 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size147 MB27 MB
Age rating4+4+
DeveloperLi Wei鹏 鲁

In-app purchases

None

Zero Password

No in-app purchases

1 purchases

NinTodo

One-time1
  • NinTodo Pro lifetime$2.99

Questions

Is Zero Password free?
Zero Password is free to download, with no in-app purchases.
Is NinTodo free?
NinTodo is free to download, with in-app purchases available.
Do Zero Password or NinTodo have ads?
Neither Zero Password nor NinTodo shows ads.
Which is updated more often, Zero Password or NinTodo?
Zero Password ships an update every 15 months, and NinTodo every 3 days. Most recently, Zero Password was updated on October 25, 2026 and NinTodo on October 29, 2026.

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