BookNapper vs SmartProbe
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.
SmartProbe
This utility app uses advanced technology for detecting pests and monitoring environmental conditions. It provides insights to help manage and improve your surroundings.
- Pest detection technology
- Environmental monitoring
- Data insights
- Improved management
- Surroundings improvement
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SmartProbe technology for pest detection and environmental monitoring
Screenshots
Verdict
BookNapper and SmartProbe are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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, SmartProbe every 3 weeks. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.
| Parameter | BookNapper | SmartProbe |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 2 weeks — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 22 MB | 74 MB |
| Age rating | 4+ | 4+ |
| Developer | Cutedge | AiVision Food |
In-app purchases
BookNapper
No in-app purchases
SmartProbe
No in-app purchases
