Instantly AI vs Cal.com
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Instantly AI
This app provides on-the-go email management. Read replies, quickly respond or forward messages, and search your inbox using various filters.
- Read emails on the go
- Quickly reply to emails
- Forward emails
- Search emails with filters
- Manage Unibox
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Instantly app allows you to read the replies on the go, quickly reply or forward emails, as well as search the emails based on different filters.
Cal.com
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.
- Instant scheduling on mobile
- Real-time calendar sync
- Smart event notifications
- Seamless integration with tools
- Reschedule and cancel meetings
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Cal.com Companion App: Schedule Meetings Effortlessly on the Go! Tired of juggling calendars and emails to book meetings? The Cal.com Companion App brings the power of Cal.com right to your fingertips, making scheduling seamless, fast, and mobile-friendly. Whether you're in a rush between calls or planning your week from anywhere, this app ensures you never miss a beat. Key Features: - Instant Scheduling: Book, reschedule, or cancel meetings with just a few taps—no desktop required. - Real-Time Availability: Syncs with your Cal.com calendar to show open slots and avoid double-booking. - Smart Notifications: Get push alerts for upcoming events, reminders, and confirmations to stay organized. (coming soon) - Easy Integration: Connects seamlessly with your email, video tools, and team calendars for hassle-free collaboration. Perfect for busy professionals, freelancers, and teams who value time. Download now and transform how you manage your schedule—anytime, anywhere! Available on iOS. Free for individuals to download without a subscription.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Instantly AI | Cal.com |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (32 ratings) | 4.8 (126 ratings) — better |
| Positive reviews | 60.0% of reviews — better | 54.5% of reviews |
| Number of ratings | 32 | 126 — better |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 23 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Foo Monk LLC | Cal.com, Inc. |
Customer experience
Instantly AI
Cal.com
In-app purchases
Instantly AI
No in-app purchases
Cal.com
No in-app purchases
