# Spark Systems vs ChartLabs

The clearest difference is in-app purchases: Spark Systems at none against ChartLabs's 6. ChartLabs's advantage is update cadence (every 10 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ChartLabs sells 6 in-app purchases, starting at $27.00 per month. Spark Systems asks for nothing beyond the download.

Spark Systems ships an update monthly, ChartLabs every 10 days. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Spark Systems | ChartLabs |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Size | 26 MB | 173 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Spark Systems Pte. Ltd.](https://appshunter.io/developer/1433658743) | [ChartLabs](https://appshunter.io/developer/1896501563) |

## What reviewers say

### Spark Systems

[App page](https://appshunter.io/ios/app/spark-systems/id1433658744)

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

**In-app purchases:** none


### ChartLabs

[App page](https://appshunter.io/ios/app/chartlabs/id6767706360)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChartLabs Pro | $27.00 | per month |
| ChartLabs Ultimate | $47.00 | per month |
| ChartLabs Ultra | $97.00 | per month |
| ChartLabs Pro | $239.99 | per year |
| ChartLabs Ultimate | $419.99 | per year |
| ChartLabs Ultra | $799.99 | per year |


## Frequently asked questions

### Is Spark Systems free?

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

### Is ChartLabs free?

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

### Do Spark Systems or ChartLabs have ads?

Neither Spark Systems nor ChartLabs shows ads.

### Which is updated more often, Spark Systems or ChartLabs?

Spark Systems ships an update monthly, and ChartLabs every 10 days. Most recently, Spark Systems was updated on November 2, 2026 and ChartLabs on November 5, 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.*