Drag PDF vs Chronos Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Drag PDF
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Thanks to Drag PDF you can create PDF documents completely free and privately. Adjust the size of the final PDF document by lowering the resolution of the images, change the order of the files, preview the content, rename the files, add part of the document with the camera thanks to the integrated scanner... All this and much more thanks to an open source initiative fully committed to privacy.
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
Screenshots
Verdict
The clearest difference is update cadence: Chronos Authenticator at every 6 days against Drag PDF's monthly. Drag PDF's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Drag PDF ships an update monthly, Chronos Authenticator every 6 days. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.
| Parameter | Drag PDF | Chronos Authenticator |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Monthly | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 31 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Victor Carreras | Joel-David Wong |
In-app purchases
Drag PDF
No in-app purchases
Chronos Authenticator
No in-app purchases
Questions
Is Drag PDF free?
Is Chronos Authenticator free?
Do Drag PDF or Chronos Authenticator have ads?
Which is updated more often, Drag PDF or Chronos Authenticator?
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