# SparkCalc vs Gridea

The clearest difference is in-app purchases: Gridea at none against SparkCalc's 2. Gridea also leads on update cadence (every 2 weeks vs every 4 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SparkCalc sells 2 in-app purchases, starting at $2.99 per month. Gridea asks for nothing beyond the download.

SparkCalc ships an update every 4 weeks, Gridea every 2 weeks. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | SparkCalc | Gridea |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 2 weeks** |
| Size | 3 MB | 52 MB |
| Requires iOS | **15.6** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [文君 李](https://appshunter.io/developer/1801128255) | [涛 陶](https://appshunter.io/developer/1681759290) |

## What reviewers say

### SparkCalc

[App page](https://appshunter.io/ios/app/sparkcalc/id6743084972)

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Membership | $2.99 | per month |
| Annual Premium Membership | $8.99 | per year |


### Gridea

[App page](https://appshunter.io/ios/app/gridea/id6777313278)

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

**In-app purchases:** none


## Frequently asked questions

### Is SparkCalc free?

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

### Is Gridea free?

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

### Do SparkCalc or Gridea have ads?

Neither SparkCalc nor Gridea shows ads.

### Which is updated more often, SparkCalc or Gridea?

SparkCalc ships an update every 4 weeks, and Gridea every 2 weeks. Most recently, SparkCalc was updated on October 8, 2026 and Gridea on October 11, 2026.

---

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