# Instantly AI vs Cal.com

The clearest difference is rating: Cal.com at 4.8 against Instantly AI's 3.1. Cal.com also leads on update cadence (every 3 weeks vs every 6 weeks) and ratings volume (126 vs 32). On price, review sentiment, 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.

Cal.com holds the better App Store score, 4.8 against 3.1. Both are backed by a comparable volume of ratings — 32 and 126 respectively. Written reviews complicate that: 60% of Instantly AI's written reviews are positive against 55% of Cal.com's, so the app with the better star average is not the one people write more warmly about.

Instantly AI ships an update every 6 weeks, Cal.com every 3 weeks. Both last shipped on September 24, 2026.

## The numbers

| Metric | Instantly AI | Cal.com |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (32 ratings)](https://appshunter.io/ios/app/instantly-ai/id6474658497/reviews) | **[4.8 (126 ratings)](https://appshunter.io/ios/app/calcom/id6757157271/reviews)** |
| Number of ratings | 32 | **126** |
| Positive reviews | **60.0% of reviews** | 54.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 23 MB | 41 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Foo Monk LLC](https://appshunter.io/developer/1722213325) | [Cal.com, Inc.](https://appshunter.io/developer/1864941554) |

## What reviewers say

### Instantly AI

[App page](https://appshunter.io/ios/app/instantly-ai/id6474658497)

This app provides on-the-go email management. Read replies, quickly respond or forward messages, and search your inbox using various filters.

**Highlights:** Read emails on the go, Quickly reply to emails, Forward emails, Search emails with filters, Manage Unibox

**Features:** macOS Compatibility

**In-app purchases:** none


### Cal.com

[App page](https://appshunter.io/ios/app/calcom/id6757157271)

This mobile app simplifies meeting scheduling on the go. It allows users to book, reschedule, and cancel appointments with ease, syncing with their existing calendars and providing real-time availability. Smart notifications help users stay organized with upcoming events.

**Highlights:** Instant scheduling on mobile, Real-time calendar sync, Smart event notifications, Seamless integration with tools, Reschedule and cancel meetings

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

**In-app purchases:** none


## Frequently asked questions

### Is Instantly AI free?

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

### Is Cal.com free?

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

### Which has better reviews, Instantly AI or Cal.com?

Cal.com is rated higher. Instantly AI averages 3.1 out of 5 from 32 ratings, while Cal.com averages 4.8 from 126 ratings.

### Do Instantly AI or Cal.com have ads?

Neither Instantly AI nor Cal.com shows ads.

### Which is updated more often, Instantly AI or Cal.com?

Instantly AI ships an update every 6 weeks, and Cal.com every 3 weeks. Most recently, Instantly AI was updated on September 24, 2026 and Cal.com on September 24, 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.*