# AI Calendar vs KinLetter

The clearest difference is device support: AI Calendar at 3 against KinLetter's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

AI Calendar ships an update every 9 days, KinLetter every 6 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | AI Calendar | KinLetter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (154 ratings)](https://appshunter.io/ios/app/ai-calendar-voice-scheduler/id6445866664/reviews)** | — |
| Number of ratings | **154** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 6 days** |
| Monetization | Free | — |
| Size | 53 MB | 72 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 12+ |
| Developer | [OrangeFish](https://appshunter.io/developer/554208459) | [Version2Labs, LLC](https://appshunter.io/developer/6775683410) |

## What reviewers say

### AI Calendar

[App page](https://appshunter.io/ios/app/ai-calendar-voice-scheduler/id6445866664)

Effortlessly add events to your calendar using natural language. This app offers a simple, desk-calendar-like monthly view and integrates AI for scheduling, answering questions, and providing reminders. It supports multiple languages and is free to use without registration.

**Highlights:** Add events with one sentence, Simple monthly calendar view, ChatGPT integration for questions, Desktop widget for home screen, Push notification reminders, Multi-language support

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

**In-app purchases:** none


### KinLetter

[App page](https://appshunter.io/ios/app/kinletter/id6775683408)

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

**In-app purchases:** none


## Frequently asked questions

### Is AI Calendar free?

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

### Is KinLetter free?

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

### Do AI Calendar or KinLetter have ads?

Neither AI Calendar nor KinLetter shows ads.

### Which is updated more often, AI Calendar or KinLetter?

AI Calendar ships an update every 9 days, and KinLetter every 6 days. Most recently, AI Calendar was updated on November 3, 2026 and KinLetter 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.*