VO Calendar Downloads & RevenueVO Calendar · App Store
VO Calendar is #108 in Productivity Paid in United States and charting in 2 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperTom van Zummeren
CategoryProductivity
Price3.99 USD
Released
Rating★ 4.6 (8)
Version1.2.5
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)1k+ worldwide
📈Entered the top 100📈Charting in a new country🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 7 events in the last 12 months
- 📈VO Calendar entered the top 100Top Paid · Productivity · GB
- 📈VO Calendar charting in a new countryUnited Kingdom
- 📈VO Calendar entered the top 100Top Paid · Productivity · NL
- 🆕VO Calendar first spotted by AppInsider#1 in Top Paid · Productivity · Netherlands
- 📈VO Calendar entered the top 100Top Paid · Productivity · US
- 📈VO Calendar charting in a new countryUnited States
- 🆕VO Calendar released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.6 ★
8 ratings
Measured
Best rank now
#108
Productivity PaidMeasured
VO Calendar on the App Store
App details
App ID
508386832
Publisher
Tom van Zummeren
On the store since
Jan 2013
13 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Content rating
4+
Languages
2
NL EN
Size
1 MB
Also listed in
Medical
VO Calendar downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where VO Calendar's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| United States | ProductivityPaid | #108 |
| Netherlands | ProductivityPaid | #79 |
Apps near VO Calendar on the chart
Productivity Paid, around #108.
Ratings
App Store, worldwide.
Rating
4.6 ★
8 ratings
Measured
Ratings
8
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
3.6★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Productivity apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About VO Calendar
NOTE: Can only be used together with VoiceOver (for blind and partially sighted people).
VO Calendar is a weekly calendar specifically designed to be used with VoiceOver.
The result of this VoiceOver-only design is not only a smoother navigation through the app. It also makes it possible for the VoiceOver speech to give smart summaries depending on the context. This prevents you from having to go through each event
Individually.
Existing events are automatically synchronized. If you prefer not to type, you can record voice memos instead.
You can use VO Calendar with the VoiceOver gestures you are used to.
However, there is an even faster way. With the screen being split into two halves you can scan the right half of the screen with your right thumb. A single tap with your left thumb then is enough to activate the concerning function. After getting used to you will find out this helps you to browse through your calendar even quicker.
The left bottom always contains the ‘Return’ button so you can still reach it with your right thumb (being an L-shaped layout). At the top left you can always find a summary of the current screen content. In case you are left-handed you can swap left and right.
Note: If you have multiple calendars configured, VO Calendar will show all concerning events. New events will be assigned to your iPhone’s default calendar. Change the default calendar in: Settings > Mail, Contacts, Calendars > Default Calendar.
VO Calendar is developed in cooperation with Royal Dutch Visio, Centre of Expertise for blind and partially sighted people (www.visio.org).
We appreciate your opinion and are always interested in hearing from you. Feel free to leave your feedback in the form of a review or contact us at: [email protected]
In case you have problems recording a memo:
- Hold one finger on 'Record memo' button
- Use other finger to tap on screen
(instead of first focussing on the button and then double tap)
VO Calendar is a weekly calendar specifically designed to be used with VoiceOver.
The result of this VoiceOver-only design is not only a smoother navigation through the app. It also makes it possible for the VoiceOver speech to give smart summaries depending on the context. This prevents you from having to go through each event
Individually.
Existing events are automatically synchronized. If you prefer not to type, you can record voice memos instead.
You can use VO Calendar with the VoiceOver gestures you are used to.
However, there is an even faster way. With the screen being split into two halves you can scan the right half of the screen with your right thumb. A single tap with your left thumb then is enough to activate the concerning function. After getting used to you will find out this helps you to browse through your calendar even quicker.
The left bottom always contains the ‘Return’ button so you can still reach it with your right thumb (being an L-shaped layout). At the top left you can always find a summary of the current screen content. In case you are left-handed you can swap left and right.
Note: If you have multiple calendars configured, VO Calendar will show all concerning events. New events will be assigned to your iPhone’s default calendar. Change the default calendar in: Settings > Mail, Contacts, Calendars > Default Calendar.
VO Calendar is developed in cooperation with Royal Dutch Visio, Centre of Expertise for blind and partially sighted people (www.visio.org).
We appreciate your opinion and are always interested in hearing from you. Feel free to leave your feedback in the form of a review or contact us at: [email protected]
In case you have problems recording a memo:
- Hold one finger on 'Record memo' button
- Use other finger to tap on screen
(instead of first focussing on the button and then double tap)
Latest updates
1.2.5
Updated for iOS 17.
