# NCKU Library vs SparkGlow

The clearest difference is in-app purchases: NCKU Library at none against SparkGlow's 4. SparkGlow's advantage is update cadence (every 8 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SparkGlow sells 4 in-app purchases, starting at $2.99 per month. NCKU Library asks for nothing beyond the download.

NCKU Library ships an update every 3 months, SparkGlow every 8 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | NCKU Library | SparkGlow |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 8 days** |
| Monetization | Free | — |
| Size | 10 MB | 37 MB |
| Requires iOS | **16.6** | 17.2 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [NATIONAL CHENG KUNG UNIVERSITY](https://appshunter.io/developer/601920267) | [Yu Chen Huang](https://appshunter.io/developer/6793047805) |

## What reviewers say

### NCKU Library

[App page](https://appshunter.io/ios/app/ncku-library/id1080535737)

Access National Cheng Kung University Library resources on your mobile device. Search the catalog, check item availability and location, renew loans, and find library hours and news.

**Highlights:** Search library catalog, Check item availability and location, Renew checkouts and request holds, View library hours and contacts, See venue occupancy status, Access library news and events

**In-app purchases:** none


### SparkGlow

[App page](https://appshunter.io/ios/app/sparkglow/id6793047803)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SparkGlow Pro Monthly | $2.99 | per month |
| SparkGlow Max Monthly | $4.99 | per month |
| SparkGlow Pro Yearly | $29.99 | per year |
| SparkGlow Max Yearly | $39.99 | per year |


## Frequently asked questions

### Is NCKU Library free?

NCKU Library is free to download, with no in-app purchases.

### Is SparkGlow free?

SparkGlow is free to download, with in-app purchases available.

### Do NCKU Library or SparkGlow have ads?

Neither NCKU Library nor SparkGlow shows ads.

### Which is updated more often, NCKU Library or SparkGlow?

NCKU Library ships an update every 3 months, and SparkGlow every 8 days. Most recently, NCKU Library was updated on November 2, 2026 and SparkGlow on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*