# NUSync vs Chill Spark

The clearest difference is update cadence: Chill Spark at every 2 days against NUSync's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NUSync ships an update every 3 weeks, Chill Spark every 2 days. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | NUSync | Chill Spark |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Size | 64 MB | 30 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [National University of Singapore](https://appshunter.io/developer/412284566) | [Suranga Nanayakkara](https://appshunter.io/developer/1662793428) |

## What reviewers say

### NUSync

[App page](https://appshunter.io/ios/app/nusync/id6752398974)

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

**In-app purchases:** none


### Chill Spark

[App page](https://appshunter.io/ios/app/chill-spark/id6760994921)

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

**In-app purchases:** none


## Frequently asked questions

### Is NUSync free?

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

### Is Chill Spark free?

Chill Spark is free to download, with no in-app purchases.

### Do NUSync or Chill Spark have ads?

Neither NUSync nor Chill Spark shows ads.

### Which is updated more often, NUSync or Chill Spark?

NUSync ships an update every 3 weeks, and Chill Spark every 2 days. Most recently, NUSync was updated on October 2, 2026 and Chill Spark on September 29, 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.*