# ObsiKO vs ConcurReminder

The clearest difference is update cadence: ObsiKO at every 6 days against ConcurReminder's every 4 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ObsiKO ships an update every 6 days, ConcurReminder every 4 weeks. Both last shipped on October 10, 2026.

## The numbers

| Metric | ObsiKO | ConcurReminder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 4 weeks |
| Size | 75 MB | 26 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hyojin Kim](https://appshunter.io/developer/6783405453) | [Braveyo LLC](https://appshunter.io/developer/1855102831) |

## What reviewers say

### ObsiKO

[App page](https://appshunter.io/ios/app/obsiko-ai-note-plus-mindmap/id6783405451)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### ConcurReminder

[App page](https://appshunter.io/ios/app/concurreminder/id6789254014)

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

**In-app purchases:** none


## Frequently asked questions

### Is ObsiKO free?

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

### Is ConcurReminder free?

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

### Do ObsiKO or ConcurReminder have ads?

Neither ObsiKO nor ConcurReminder shows ads.

### Which is updated more often, ObsiKO or ConcurReminder?

ObsiKO ships an update every 6 days, and ConcurReminder every 4 weeks. Most recently, ObsiKO was updated on October 10, 2026 and ConcurReminder on October 10, 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.*