# Erla vs SimuFlow

The clearest difference is in-app purchases: SimuFlow at none against Erla's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Erla sells 2 in-app purchases, starting at $12.99 per month. SimuFlow asks for nothing beyond the download.

Erla ships an update every 9 days, SimuFlow fortnightly. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Erla | SimuFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Size | 103 MB | 28 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandr Shelestov PR JustOneDev](https://appshunter.io/developer/506634828) | [ABBA GROUP, MB](https://appshunter.io/developer/1851033422) |

## What reviewers say

### Erla

[App page](https://appshunter.io/ios/app/erla-learn-danish-with-ai/id6755543920)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Erla Pro Monthly | $12.99 | per month |
| Erla Pro Annual | $59.99 | per year |


### SimuFlow

[App page](https://appshunter.io/ios/app/simuflow/id6760581109)

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

**In-app purchases:** none


## Frequently asked questions

### Is Erla free?

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

### Is SimuFlow free?

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

### Do Erla or SimuFlow have ads?

Neither Erla nor SimuFlow shows ads.

### Which is updated more often, Erla or SimuFlow?

Erla ships an update every 9 days, and SimuFlow fortnightly. Most recently, Erla was updated on November 1, 2026 and SimuFlow on October 31, 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.*