Chronos Authenticator vs ICS2Calendar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Open-source
- End-to-end encrypted token storage
- Optional iCloud backup and sync
- Token export and import
- Anonymous usage (no account required)
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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
ICS2Calendar
Easily import calendar events from ICS files directly into your iPhone or iPad calendar. Share files from any app, preview events, select your destination calendar, and import with a single tap for a fast and reliable experience.
- Import ICS calendar files
- Preview events before import
- Select destination calendar
- Share from any app
- Direct import from Files app
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Import calendar files in seconds. Open .ics files directly from Files, Mail, Safari, WhatsApp or any other app using the iOS Share menu, preview the events, choose the destination calendar, and import everything with a tap. The app lets you: * Open and preview ICS calendar files * Import events into any calendar on your iPhone or iPad * Share .ics files to the app from other apps * Open ICS attachments directly from the Files app * Select the exact calendar where events should be imported * Quickly review event details before saving Designed for fast, simple and reliable calendar imports without unnecessary steps.
Screenshots
Verdict
The clearest difference is review sentiment: Chronos Authenticator at 100% against ICS2Calendar's 50%. Chronos Authenticator also leads on price (Free vs $0.99) and rating (5.0 vs 3.0). ICS2Calendar's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On update cadence, ads and in-app purchases 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
Chronos Authenticator is free to download; ICS2Calendar costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Chronos Authenticator holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 100% of Chronos Authenticator's written reviews are positive against 50% of ICS2Calendar's.
Chronos Authenticator ships an update every 6 days, ICS2Calendar every 8 days. The most recent releases landed on September 16, 2026 and September 12, 2026 respectively.
| Parameter | Chronos Authenticator | ICS2Calendar |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 5.0 (3 ratings) — better | 3.0 (1 ratings) |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 6 days — better | Every 8 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 11 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Joel-David Wong | Linkas SRL |
Customer experience
Chronos Authenticator
ICS2Calendar
In-app purchases
Chronos Authenticator
No in-app purchases
ICS2Calendar
No in-app purchases
Questions
Is Chronos Authenticator free?
Is ICS2Calendar free?
Which has better reviews, Chronos Authenticator or ICS2Calendar?
Do Chronos Authenticator or ICS2Calendar have ads?
Which is updated more often, Chronos Authenticator or ICS2Calendar?
Other comparisons
