Comparison

Okthx vs Calyn

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Okthx

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
Read full description

Okthx is a “coordination assistant” designed to handle end‑to‑end scheduling tasks—directly negotiating times with other parties and confirming details across email, calendars, and phone—so you don’t have to deal with back‑and‑forth communications. It utilizes AI to extract relevant information from emails, calendars, and contacts, allowing it to act on your behalf.

About

Calyn

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
Read full description

Welcome to Calyn calm. Snap a photo. Speak a note. Got a reminder, email, or text? Share it straight into Calyn. Find conflicts, schedule your priorities—no more mental juggling! Inspired by David Allen’s Getting Things Done (GTD) principles, Calyn helps you capture life as it happens—client meetings, class deadlines, soccer drop-offs—so your focus time goes to what matters most. KEY FEATURES • Snap Events – Add events from images, audio, or free text instantly. • Templates – Save time with templates for common routines, such as meal planning or after-school schedules. • Share Extension – Send events from email, messages, or photos directly to Calyn. • Conflict Detection – Spot and resolve overlapping events across all your calendars. • Find Free Time – Discover open slots and easily share your availability with others. • Batch Capture – Capture multiple events from a single message or image. WHO IT’S FOR • Busy families juggling pickups, appointments, and activities • Students managing syllabi, deadlines, and study time • Solopreneurs & small businesses balancing client work and personal priorities • Anyone starting fresh who wants to plan better weeks and build better habits Life captured, time reclaimed—that's Calyn calm. Privacy Policy: https://getcha.ai/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Okthx4 screens
Calyn4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard3 real differences · 7 level
Okthx versus Calyn: the parameters behind the verdict, then further details
ParameterOkthxCalyn
PriceFreeFree
Rating5.0 (1 ratings)5.0 (4 ratings)
Positive reviews—100.0% of reviews
Number of ratings14 — better
Update frequencyEvery 2 weeks — betterFortnightly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhoneiPhone, iPad — better
Requires iOS16.4 — better17.5
Further details — not scored
Size74 MB22 MB
Age rating4+4+
DeveloperBig Basin LabsChaai LLC

Customer experience

Okthx

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Calyn

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Okthx

No in-app purchases

2 purchases

Calyn

Subscriptions2
  • Essential Plan$4.991 Month
  • Pro Plan$9.991 Month

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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