# KurTasIr vs E

The clearest difference is in-app purchases: KurTasIr at none against E's 3. KurTasIr also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). E's advantage is update cadence (every 3 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. E sells 3 in-app purchases, starting at $2.99 per month. KurTasIr asks for nothing beyond the download.

KurTasIr ships an update every 2 months, E every 3 weeks. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | KurTasIr | E |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 60 MB | 37 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Latvenergo AS](https://appshunter.io/developer/975453520) | [Mohamed Mubarak](https://appshunter.io/developer/6787548629) |

## What reviewers say

### KurTasIr

[App page](https://appshunter.io/ios/app/kurtasir/id1601884412)

**Features:** macOS Compatibility

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-light-circuit-simulator/id6787548627)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Quarterly | $7.99 | per 3 months |
| Pro Yearly | $24.99 | per year |


## Frequently asked questions

### Is KurTasIr free?

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

### Is E free?

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

### Do KurTasIr or E have ads?

E shows ads; KurTasIr does not.

### Which is updated more often, KurTasIr or E?

KurTasIr ships an update every 2 months, and E every 3 weeks. Most recently, KurTasIr was updated on October 4, 2026 and E on October 15, 2026.

---

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