BookNapper vs Jamf Unlock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BookNapper
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Singapore National Library Board (NLB) Book Availability Search. Keep a list of books to read by scanning in their ISBN bar code numbers. The app will tell you where each book can be found in the NLB branch library system. Also, when you walk into an NLB branch library, the app will tell you which of the books in your to-read list can be found there, together with their call numbers, so you can quickly locate the book.
Jamf Unlock
Unlock your Mac without a password using your mobile device. This app generates identity credentials and pairs with your Mac for seamless authentication for unlocking, system settings, and root commands.
- Passwordless Mac unlocking
- Authenticate system settings changes
- Secure sudo command execution
- Mobile device credential generation
- Pairing with Mac
- Customizable by IT administrators
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Jamf Unlock is a mobile app that allows you to unlock your Mac without using a password. With Jamf Unlock, you complete a setup process to generate identity credentials (a certificate) on your mobile device and pair the device with your Mac. Once complete, you can use the app to authenticate for: - Unlocking your Mac - Prompts to change settings in System Preferences - Commands executed with root privileges with the sudo command IT administrators can use Jamf Pro to customize the look and feel of the app, configure authentication settings via managed app configuration, and deploy the app to users. Jamf Unlock is an iOS app to extend the Jamf Connect product for passwordless authentication on the Mac.
Screenshots
Verdict
The clearest difference is update cadence: BookNapper at every 2 weeks against Jamf Unlock's every 3 months. Jamf Unlock's advantage is iOS requirement (14.0 vs 16.0). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
BookNapper ships an update every 2 weeks, Jamf Unlock every 3 months. The most recent releases landed on September 16, 2026 and September 21, 2026 respectively.
| Parameter | BookNapper | Jamf Unlock |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (6 ratings) — better |
| Number of ratings | — | 6 — better |
| Update frequency | Every 2 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 22 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Cutedge | JAMF Software |
In-app purchases
BookNapper
No in-app purchases
Jamf Unlock
No in-app purchases
