Tadah vs Nox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tadah
This app helps you understand and manage official mail like bills and notices. It extracts key information, provides clear action steps, and sets reminders for deadlines. It offers guides for common life events and supports household organization with privacy in mind.
- Scan and understand bills, notices, and forms
- Extracts key information like amounts and deadlines
- Provides step-by-step action checklists
- Sets deadline reminders
- Offers guides for life events
- Supports household organization
- Privacy-focused document handling
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Official mail is written for the people who send it, not for the people who get it. Tadah reads a letter, bill, or notice and tells you three things: what it is, why you got it, and what to do next — in plain words, in English, Spanish, or Simplified Chinese. SCAN ANYTHING THAT ARRIVES Point your camera at a bill, a ticket, a school form, an insurance letter, a medical notice, a court or immigration document. Tadah pulls out the amount, the deadline, and the account or reference number you will actually need, and writes a short explanation of what triggered it. A CHECKLIST, NOT A WALL OF TEXT Every document becomes a short list of actions in order. Tap any step to see how and where to do it — the exact page to pay on, what to bring, and what to say on the phone. DEADLINES THAT REMIND YOU Due dates become reminders. Tadah handles the awkward cases: a deadline written as "within 90 days", a year the document never printed, an appointment in another timezone. GUIDES FOR THE THINGS NOBODY EXPLAINS Step-by-step help for moving, renting, a new job, a car, health coverage, and more — written for people navigating a system for the first time, with links to official .gov pages rather than someone's blog. FOR YOUR WHOLE HOUSEHOLD Keep a separate space for each person — a parent's medical letters, a child's school forms — and see all of it in one list, marked by who it belongs to. BUILT TO BE PRIVATE Your documents stay on your phone. When you scan, only the recognized text is sent for explanation — never the photo, and never your name or account. Usage statistics are opt-in: Tadah asks once, and sends nothing unless you say yes. TADAH PLUS An optional subscription that raises the scan and to-do limits, gives each person their own space, and keeps everything in sync across your devices. The core of Tadah is free and stays free — no account required to scan, explain, or set a reminder. Tadah organizes and explains documents. It is not legal, tax, medical, or immigration advice. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://tadah-legal.pages.dev/privacy
Nox
Securely store your most sensitive personal information locally on your device. This app uses strong encryption to protect identities, financial details, medical records, and more, with no cloud storage involved. Features include biometric unlock and expiry reminders for your documents.
- On-device encrypted storage
- Biometric unlock (Face ID/Touch ID)
- Expiry reminders for documents
- Encrypted backup and restore
- Screenshot protection
- Store identity, financial, medical, and travel data
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Your most sensitive information belongs on your device — not in the cloud, not on someone else's server. Nox is a zero-knowledge personal vault that keeps everything locally, encrypted on your device in the iOS Keychain. What you can store – Identity: Passports, Driver's Licenses, National IDs, Birth Certificates – Financial: Bank accounts, Credit cards, Crypto wallets, Tax IDs – Medical: Health insurance, Blood type, Emergency contacts, Vaccination records – Travel: Frequent flyer cards, Hotel loyalty, Global Entry, Travel insurance – Vehicle: Car insurance, Registration, Roadside assistance – Other: Wi-Fi passwords, Safe combinations, Software licenses, Loyalty cards Privacy by design We have no servers. We have no access to your data. Your PIN is never stored — only a cryptographic hash. Backup files are encrypted on your device with a key derived from your PIN, so only you can open them. This is not a privacy policy. This is how the app works. Smart features – Scan passports and ID cards to fill in their details, entirely on-device – Face ID / Touch ID unlock – Expiry reminders for documents and cards – Encrypted backup & restore – Screenshot protection Nox Pro Unlock unlimited item storage, expiry reminders, custom categories, and custom item types with a Pro subscription or one-time lifetime purchase. Privacy Policy: https://noxappdev.github.io/nox-privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Screenshots
Verdict
The clearest difference is ratings volume: Nox at 6 against Tadah's 2. Nox also leads on iOS requirement (15.1 vs 17.0). On price, rating, review sentiment and update cadence 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. Tadah sells 2 in-app purchases, starting at $6.99 per month and Nox sells 2 in-app purchases, starting at $11.99 per year. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Tadah against 5.0 for Nox. Both are backed by a comparable volume of ratings — 2 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Both ship on a similar rhythm, roughly weekly. Both last shipped on October 9, 2026.
| Parameter | Tadah | Nox |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (6 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 6 — better |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 16 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Ruiqi Wang | Nour Ahdi |
Customer experience
Tadah
Nox
In-app purchases
Tadah
- Tadah Plus (Monthly)1 Month trial$6.991 Month
- Tadah Plus (Yearly)$59.991 Year
Nox
- Nox Pro — Annual$11.991 Year
- Nox Pro — Lifetime$22.99









