Comparison

Notion Calendar vs HearFlow

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

Head to head
About

Notion Calendar

Manage your schedule and events with a unified view across multiple calendars. Integrate with your Notion workspace to link documents and projects directly to your events. Offers customizable widgets for quick access to upcoming appointments and event details.

Highlights
  • Deep Google Calendar integration
  • Connect Notion docs and projects
  • Multiple time zone support
  • Unified calendar view
  • Home and Lock Screen widgets
  • Available in 12 languages
Features
Read full description

Notion Calendar lets you schedule meetings and control your time like never before. It deeply integrates with Google Calendar accounts so that all your events are synced. Along with speed, beauty, and light/dark modes, Notion Calendar includes powerful features: - CONNECTED TO NOTION — add Notion docs, projects, and timelines. - MULTIPLE TIME ZONES — pull the time zone column to the right to “travel to any city” and add more time zones. - ALL IN ONE PLACE — see one unified view across multiple calendars and auto-sync events between them. - WIDGETS — select from 6 Home Screen Widgets featuring rich previews of upcoming events, month overviews, quick-add event buttons, and more! The Lock Screen Widget lets you see what’s coming at a glance when picking up your phone. - AVAILABLE IN 12 LANGUAGES — Japanese, Korean, French, German, Spanish, Portuguese, Danish, Dutch, Finnish, Norwegian, and Swedish. It’s time.

About

HearFlow

Features
Read full description

Write with your voice, in any app. HearFlow is a keyboard that listens. Tap the microphone, speak, and clean text appears right where you were typing: WhatsApp, Mail, Notes, anywhere there is a text field. THE TEXT COMES OUT READY Not a raw transcript: HearFlow fixes punctuation and capitalization, applies your tone (formal, casual, very casual or excited) and gets your own words right. YOUR VOCABULARY Add names, acronyms and technical terms to the dictionary and HearFlow stops getting them wrong. With snippets, one spoken phrase becomes a full text. A FULL KEYBOARD QWERTY layout with shift, accented letters on long press, numbers and symbols. Type by hand when you want, dictate when it is faster. ON-DEVICE RECOGNITION Speech is recognized with Apple's Speech framework, on your iPhone whenever your language's iOS dictation model is installed on the device, so dictation keeps working offline. If that model is not installed, iOS uses Apple's speech recognition service for that dictation. Audio from the HearFlow keyboard never reaches HearFlow's servers. VOICE NOTES AND MAC DICTATIONS, IN ONE PLACE Share a voice note from WhatsApp, Voice Memos or Files to HearFlow and get its transcript, plus a short summary when you ask for one. Home also shows the dictations you make with HearFlow for Mac: play the audio, rename, share, or undo an AI edit. YOUR AUDIOS, YOUR CHOICE To keep your iPhone and Mac in sync, imported voice notes and Mac dictations, with their audio, are stored on HearFlow's servers for 90 days. You choose on first launch, and you can turn sync off or delete everything from Settings at any time. Optional AI cleanup and summaries send text only, never audio, and only after you agree. We never sell your data or use it for ads. YOUR NUMBERS Words dictated, real speed, day streaks: see how much time you are actually saving. Free trial, then Pro as a monthly or yearly subscription, or a one-time purchase. Auto-renewable subscription: it renews unless cancelled at least 24 hours before the end of the period. Manage or cancel in your App Store account settings. Terms: https://hearflow.it/terms Privacy: https://hearflow.it/privacy

Screenshots

Notion Calendar4 screens
HearFlow4 screens

Verdict

The call

The clearest difference is in-app purchases: Notion Calendar at none against HearFlow's 3. Notion Calendar also leads on iOS requirement (15.0 vs 17.0). HearFlow's advantage is update cadence (every 5 days vs fortnightly). On price, ads and device support 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. HearFlow sells 3 in-app purchases, starting at $14.00 per month. Notion Calendar asks for nothing beyond the download.

UpkeepUpdate frequency

Notion Calendar ships an update fortnightly, HearFlow every 5 days. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Notion Calendar versus HearFlow: the parameters behind the verdict, then further details
ParameterNotion CalendarHearFlow
PriceFreeFree
Rating4.7 (7.7K ratings) — better—
Positive reviews38.9% of reviews—
Number of ratings7.7K — better—
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size44 MB15 MB
Age rating4+4+
DeveloperNotion Labs, IncorporatedManuel Rizzo

Bugs and requests

Notion Calendar

Reported bugs

4 issues
  • App crashes when trying to add events
  • Syncing issues causing events to disappear or display incorrectly
  • Time zone issues leading to incorrect event times
  • Widgets not updating properly

Requested features

6 requests
  • Add monthly and weekly calendar views
  • Integrate with more calendar providers (Microsoft, Apple, etc.)
  • Improve iPad compatibility and optimize for larger screens
  • Add task management and to-do list functionality
  • Enhance customization options (colors, themes, etc.)
Show 1 more
  • Improve event creation and editing experience

HearFlow

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Notion Calendar

No in-app purchases

3 purchases

HearFlow

Subscriptions2
  • HearFlow Pro Monthly$14.001 Month
  • HearFlow Pro Yearly$129.991 Year
One-time1
  • HearFlow Pro Lifetime$229.00

Questions

Is Notion Calendar free?
Notion Calendar is free to download, with no in-app purchases.
Is HearFlow free?
HearFlow is free to download, with in-app purchases available.
Do Notion Calendar or HearFlow have ads?
Neither Notion Calendar nor HearFlow shows ads.
Which is updated more often, Notion Calendar or HearFlow?
Notion Calendar ships an update fortnightly, and HearFlow every 5 days. Most recently, Notion Calendar was updated on November 1, 2026 and HearFlow on October 25, 2026.

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