# Marevo vs Cognis

The clearest difference is update cadence: Marevo at every 6 days against Cognis's every 2 weeks. Marevo also leads on iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Marevo sells 2 in-app purchases, starting at $7.99 per month and Cognis sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Marevo ships an update every 6 days, Cognis every 2 weeks. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Marevo | Cognis |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Size | 88 MB | 3 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kyrylo Kuchynskyi](https://appshunter.io/developer/1803802923) | [Fishington Studios](https://appshunter.io/developer/344044425) |

## What reviewers say

### Marevo

[App page](https://appshunter.io/ios/app/marevo-daily-math/id6743652006)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $7.99 | per month |
| Yearly Premium | $39.99 | per year |


### Cognis

[App page](https://appshunter.io/ios/app/cognis-flashcards/id6762174544)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Pro | $4.99 | one-time |


## Frequently asked questions

### Is Marevo free?

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

### Is Cognis free?

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

### Do Marevo or Cognis have ads?

Neither Marevo nor Cognis shows ads.

### Which is updated more often, Marevo or Cognis?

Marevo ships an update every 6 days, and Cognis every 2 weeks. Most recently, Marevo was updated on October 25, 2026 and Cognis on October 28, 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.*