Comparison

Cal.com vs ZerZer

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

Head to head
About

Cal.com

This app simplifies scheduling meetings on the go. Book, reschedule, or cancel appointments with a few taps, syncing directly with your calendar. Receive smart notifications and integrate with your existing tools for seamless collaboration.

Highlights
  • Instant meeting booking, rescheduling, and cancellation
  • Real-time calendar synchronization
  • Smart push notifications for events
  • Integration with email and video tools
  • Mobile-friendly scheduling
Features
Read full description

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.

About

ZerZer

Features
Read full description

ZerZer is your private, on-device vocal companion. Track your daily speaking habits, word count, and vocal mood without ever sending your voice to the cloud. Whether you're preparing for a presentation, tracking your social interactions, or simply curious about your daily vocal patterns, ZerZer provides beautiful insights while keeping your data 100% secure on your device. Features: • Private Word Counting: Track how many words you speak daily. • Vocal Mood Analysis: Understand the sentiment of your voice. • Beautiful Share Cards: Share your daily progress with friends. • 100% On-Device: Your voice never leaves your phone. Terms of Use: https://veinly.eu/privacy/zerzer-EULA

Screenshots

Cal.com4 screens
ZerZer4 screens

Verdict

The call

The clearest difference is in-app purchases: Cal.com at none against ZerZer's 2. On price, ads, device support and iOS requirement 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. ZerZer sells 2 in-app purchases, starting at $3.99 per month. Cal.com asks for nothing beyond the download.

Scorecard1 real difference · 9 level
Cal.com versus ZerZer: the parameters behind the verdict, then further details
ParameterCal.comZerZer
PriceFreeFree
Rating4.9 (220 ratings) — better—
Positive reviews54.5% of reviews—
Number of ratings220 — better—
Update frequencyEvery 4 weeks—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better16.4
Further details — not scored
Size44 MB55 MB
Age rating4+4+
DeveloperCal.com, Inc.Mohammad Esmaell Barbatl

In-app purchases

None

Cal.com

No in-app purchases

2 purchases

ZerZer

Subscriptions2
  • ZerZer Pro Monthly$3.991 Month
  • ZerZer Pro Yearly$29.991 Year

Questions

Is Cal.com free?
Cal.com is free to download, with no in-app purchases.
Is ZerZer free?
ZerZer is free to download, with in-app purchases available.
Do Cal.com or ZerZer have ads?
Neither Cal.com nor ZerZer shows ads.

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