# Spark vs energiCity

The clearest difference is in-app purchases: energiCity at none against Spark's 2. Spark's advantage is update cadence (every 3 days vs every 3 weeks) and iOS requirement (14.0.0 vs 16.6). On price, ads and device support there is nothing between them.

Both are free to download. Spark sells 2 in-app purchases, starting at $0.99 per month. energiCity asks for nothing beyond the download.

Spark ships an update every 3 days, energiCity every 3 weeks. The most recent releases landed on October 25, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Spark | energiCity |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 63 MB | 53 MB |
| Requires iOS | **14.0.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [JNRA Legacy, LLC](https://appshunter.io/developer/1707021991) | [Sayf Ali](https://appshunter.io/developer/1777861707) |

## What reviewers say

### Spark

[App page](https://appshunter.io/ios/app/spark-study-smarter/id6520395594)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spark Premium Monthly | $0.99 | per month |
| Spark Premium Annual | $9.99 | per year |


### energiCity

[App page](https://appshunter.io/ios/app/energicity/id6737781230)

**In-app purchases:** none


## Frequently asked questions

### Is Spark free?

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

### Is energiCity free?

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

### Do Spark or energiCity have ads?

Neither Spark nor energiCity shows ads.

### Which is updated more often, Spark or energiCity?

Spark ships an update every 3 days, and energiCity every 3 weeks. Most recently, Spark was updated on October 25, 2026 and energiCity on October 21, 2026.

---

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