Comparison

O2 Car Control vs RingCalendar

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

Head to head
About

O2 Car Control

Features
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In the app you will find: - Vehicle detail with basic information about last position, route and tank status - Driver login to the vehicle - Option to enter expenses just made on the vehicle - Option to activate alerts - Share location with family or clients - Map display of location and route with a range of features - Clear list of vehicle routes with details of each route - Notifications from the app in one place - Ability to chat with colleagues in the company The app is designed for O2 customers. To use it you need an active account and access data.

About

RingCalendar

Features
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When there’s enough room, event names appear directly on the ring so you can understand your day even faster. EVENTS + REMINDERS. TOGETHER. Your calendar events and reminders live in one clear daily view. See what’s happening, what’s next and what still needs to be done without switching between separate apps. EVENT NOTES A calendar tells you when something happened. Event Notes help you remember what happened. Attach: • Text Notes • Voice Notes • Photo Notes to the events that gave them context. EVENT NOTES LIBRARY All your Event Notes now have their own home. Browse notes from across your calendar, search them, filter by type or event date, select multiple notes at once and jump directly back to the original event. MONTH VIEW Zoom out without losing the details. RingCalendar’s Month View gives you a visual overview of busy and quiet days while keeping individual events visible. DAILY REVIEW Revisit the moments you captured during the day in chronological context. RingCalendar keeps your notes tied to the calendar instead of turning them into an isolated archive. APPLE WATCH Keep your day close at hand. View events and reminders, capture Event Notes and use RingCalendar directly from Apple Watch. Day Progress gives you a compact visual sense of what’s coming next. BUILT FOR DIFFERENT WAYS OF WORKING RingCalendar adapts its layout to the available screen, including spacious multi-pane views on larger and Duo displays. Your calendar remembers when. RingCalendar helps you remember.

Screenshots

O2 Car Control4 screens
RingCalendar4 screens

Verdict

The call

The clearest difference is in-app purchases: O2 Car Control at none against RingCalendar's 2. O2 Car Control also leads on iOS requirement (17.6 vs 26.5). RingCalendar's advantage is update cadence (every 3 days vs every 4 months). 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. RingCalendar sells 2 one-off in-app purchases. O2 Car Control asks for nothing beyond the download.

UpkeepUpdate frequency

O2 Car Control ships an update every 4 months, RingCalendar every 3 days. Both last shipped on November 10, 2026.

Scorecard3 real differences · 3 level
O2 Car Control versus RingCalendar: the parameters behind the verdict, then further details
ParameterO2 Car ControlRingCalendar
PriceFreeFree
Update frequencyEvery 4 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS17.6 — better26.5
Further details — not scored
Size47 MB22 MB
Age rating4+4+
DeveloperO2 Czech Republic a.s.IO CZ s.r.o.

In-app purchases

None

O2 Car Control

No in-app purchases

2 purchases

RingCalendar

One-time2
  • 7-Day TrialFree
  • RingCalendar Pro$12.99

Questions

Is O2 Car Control free?
O2 Car Control is free to download, with no in-app purchases.
Is RingCalendar free?
RingCalendar is free to download, with in-app purchases available.
Do O2 Car Control or RingCalendar have ads?
Neither O2 Car Control nor RingCalendar shows ads.
Which is updated more often, O2 Car Control or RingCalendar?
O2 Car Control ships an update every 4 months, and RingCalendar every 3 days. Most recently, O2 Car Control was updated on November 10, 2026 and RingCalendar on November 10, 2026.

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