SIS VHL vs BatLib
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
SIS VHL
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This app is intended for students of Van Hall Larenstein in Leeuwarden and Velp. With this app, you will get mobile access to your schedule, results (grades and other results). You will receive messages about registration and grades, and you can register or unregister for courses and tests, minors and majors (specializations) This app gives you a better overview and insight into your studies. For more information check Studentnet. In case of questions you can get in touch with the Servicepoint.
BatLib
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The BatLib app plays the different ultrasonic calls of most European bats, transformed into the audible range using the heterodyne mixer method. This is particularly useful for comparing directly with the output of the BATSCANNER device to help determine the species. 1. Enter the frequency that your BATSCANNER displays to filter the species 2. Listen to the typical bat call sequences 3. Compare the sound with what you hear from your BATSCANNER 4. Sounds similar? Read additional information about the bat species, such as acoustic characteristics, size, habitat, photos, etc. Further information about our bat products: www.batscanner.ch
Screenshots
Verdict
The clearest difference is update cadence: SIS VHL at every 10 months against BatLib's every 26 months. SIS VHL also leads on iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SIS VHL ships an update every 10 months, BatLib every 26 months. The most recent releases landed on September 18, 2026 and December 13, 2025 respectively.
| Parameter | SIS VHL | BatLib |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 months โ better | Every 26 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 โ better | 15.0 |
| Further details โ not scored | ||
| Size | 34 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | CACI bv | Elekon AG |
In-app purchases
SIS VHL
No in-app purchases
BatLib
No in-app purchases
Questions
Is SIS VHL free?
Is BatLib free?
Do SIS VHL or BatLib have ads?
Which is updated more often, SIS VHL or BatLib?
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