Comparison

Chronos Authenticator vs Granite

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

Head to head
About

Chronos Authenticator

This open-source app provides secure two-factor authentication using time-based and counter-based methods. It offers end-to-end encryption for token data and optional iCloud backup and sync for convenience. Easily import and export your authentication tokens.

Highlights
  • Open-source
  • End-to-end encrypted token storage
  • Optional iCloud backup and sync
  • Token export and import
  • Anonymous usage (no account required)
Read full description

Chronos is an open-source two-factor authentication (2FA) app designed to deliver robust security and reliable backup features. It supports both time-based (TOTP) and counter-based (HOTP) authentication methods. Features: • Open-source • End-to-end encrypted: Only encrypted token data is stored on the device and in iCloud • Backup & Sync (optional): Effortlessly backup and sync your data with iCloud • Export Tokens: Easily export your tokens for backup or transfer • Import Tokens: Easily import your tokens from other authenticators • Anonymous: No telemetry & app account required

About

Granite

Features
Read full description

Granite (granite.co) is a document vault for iPhone. Scan or drop in a receipt, an insurance policy, a tax form, or a passport, and Granite reads it, works out what it is, pulls out the dates and amounts that matter, and files it so you can find it again. CAPTURE Scan a page with the camera and Granite straightens and crops it for you. Share a file into Granite from Files, Mail, or Safari. Everything you add is read and filed the same way, whatever door it came through. FIND IT LATER Search reads the words inside every page, not just the file name. Ask a question in plain English, like "what did I pay for car insurance last year", and get an answer with the document behind it. STAY AHEAD OF DATES Granite pulls renewal and expiration dates off your documents and tells you before they pass, so a lapsed policy or an expired passport is never a surprise. ORGANIZED WITHOUT THE WORK Documents group themselves into collections, and into the people, cars, homes, and accounts they belong to. There are no folders to design and no naming scheme to keep up. WHAT PEOPLE KEEP IN GRANITE Tax forms and W-2s. Insurance policies and cards. Passports, IDs, and Social Security cards. Receipts and warranties. Medical records and explanations of benefits. Car titles, deeds, closing documents, leases, contracts, and invoices. YOURS, AND PRIVATE Every file is encrypted. Face ID or Touch ID locks the app. You can export everything you have put in, at any time, in a format you can read without us. Granite Free holds 25 documents and 1 GB. Granite Paid is an annual subscription that lifts the limits and unlocks Ask. Terms of Use: https://granite.co/terms Privacy Policy: https://granite.co/privacy

Screenshots

Chronos Authenticator4 screens
Granite4 screens

Verdict

The call

The clearest difference is in-app purchases: Chronos Authenticator at none against Granite's 1. On price, update cadence, ads 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. Granite sells 1 in-app purchase, starting at $129.00 per year. Chronos Authenticator asks for nothing beyond the download.

UpkeepUpdate frequency

Chronos Authenticator ships an update every 6 days, Granite weekly. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.

Scorecard1 real difference · 9 level
Chronos Authenticator versus Granite: the parameters behind the verdict, then further details
ParameterChronos AuthenticatorGranite
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 6 days — betterWeekly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details — not scored
Size11 MB8 MB
Age rating4+4+
DeveloperJoel-David WongOrdinary Systems, LLC

In-app purchases

None

Chronos Authenticator

No in-app purchases

1 purchases

Granite

Subscriptions1
  • Granite (Annual)$129.001 Year

Questions

Is Chronos Authenticator free?
Chronos Authenticator is free to download, with no in-app purchases.
Is Granite free?
Granite is free to download, with in-app purchases available.
Do Chronos Authenticator or Granite have ads?
Neither Chronos Authenticator nor Granite shows ads.
Which is updated more often, Chronos Authenticator or Granite?
Chronos Authenticator ships an update every 6 days, and Granite weekly. Most recently, Chronos Authenticator was updated on October 3, 2026 and Granite on October 1, 2026.

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