# Okthx vs Calyn

The clearest difference is in-app purchases: Okthx at none against Calyn's 2. Calyn's advantage is ratings volume (4 vs 1). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Calyn sells 2 in-app purchases, starting at $4.99 per month. Okthx asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Okthx against 5.0 for Calyn. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

Okthx ships an update every 2 weeks, Calyn fortnightly. The most recent releases landed on September 24, 2026 and June 3, 2026 respectively.

## The numbers

| Metric | Okthx | Calyn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/okthx/id6745571425/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/calyn/id6747404955/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | **Free** | Freemium |
| Size | 74 MB | 22 MB |
| Requires iOS | **16.4** | 17.5 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Big Basin Labs](https://appshunter.io/developer/1812993901) | [Chaai LLC](https://appshunter.io/developer/1738597436) |

## What reviewers say

### Okthx

[App page](https://appshunter.io/ios/app/okthx/id6745571425)

This AI-powered assistant streamlines scheduling by negotiating times and confirming details across your communications. It intelligently extracts information from emails, calendars, and contacts to manage your schedule autonomously.

**Highlights:** AI-powered scheduling, End-to-end task management, Negotiates meeting times, Confirms details, Integrates with email and calendars, Extracts information from contacts

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

**In-app purchases:** none


### Calyn

[App page](https://appshunter.io/ios/app/calyn/id6747404955)

Effortlessly capture and organize your life's events. This intelligent assistant allows you to add appointments from photos, voice notes, or text, detect conflicts, and find free time. Streamline your schedule and reclaim your focus.

**Highlights:** Capture events from images, audio, or text, Utilize templates for recurring routines, Share events via extension from other apps, Detect and resolve event conflicts, Find and share available time slots, Batch capture multiple events at once

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Essential Plan | $4.99 | per month |
| Pro Plan | $9.99 | per month |


## Frequently asked questions

### Is Okthx free?

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

### Is Calyn free?

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

### Which has better reviews, Okthx or Calyn?

Okthx and Calyn are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.

### Do Okthx or Calyn have ads?

Neither Okthx nor Calyn shows ads.

### Which is updated more often, Okthx or Calyn?

Okthx ships an update every 2 weeks, and Calyn fortnightly. Most recently, Okthx was updated on September 24, 2026 and Calyn on June 3, 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.*