# e vs Ekstren

The clearest difference is in-app purchases: e at none against Ekstren's 3. e also leads on device support (3 vs 1). Ekstren's advantage is update cadence (every 9 days vs every 3 weeks). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Ekstren sells 3 in-app purchases, starting at $1.99 per month. e asks for nothing beyond the download.

e ships an update every 3 weeks, Ekstren every 9 days. The most recent releases landed on November 7, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | e | Ekstren |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Free | — |
| Size | 43 MB | 60 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Uyumsoft](https://appshunter.io/developer/1332641854) | [BARIS SENOL](https://appshunter.io/developer/6794585859) |

## What reviewers say

### e

[App page](https://appshunter.io/ios/app/e-uyum/id1489134985)

Manage electronic invoicing and shipping documents on your mobile device. Create, view, and track various types of e-invoices and e-waybills. Streamline your business's digital document processes with easy-to-use creation and listing screens.

**Highlights:** Create e-Fatura and e-Arşiv Fatura, Generate e-İrsaliye documents, Manage e-SMM and e-MM, View incoming and outgoing invoices, Track invoice statuses, Copy and share documents, Convert waybills to invoices

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

**In-app purchases:** none


### Ekstren

[App page](https://appshunter.io/ios/app/ekstren/id6806163506)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ekstrem | $1.99 | per month |
| Ekstrem | $29.99 | per year |
| Ekstren Ömür Boyu | $49.99 | one-time |


## Frequently asked questions

### Is e free?

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

### Is Ekstren free?

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

### Do e or Ekstren have ads?

Neither e nor Ekstren shows ads.

### Which is updated more often, e or Ekstren?

e ships an update every 3 weeks, and Ekstren every 9 days. Most recently, e was updated on November 7, 2026 and Ekstren on November 6, 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.*