Comparison

Circuits Calendar vs GridOne

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

Head to head
About

Circuits Calendar

A minimalist motorsport calendar app that provides race schedules, interactive circuit views, and session reminders. Stay updated with race results, standings, and weather forecasts. Offers home screen widgets for quick access to upcoming events.

Highlights
  • Race schedules in local time
  • Interactive 3D circuit models
  • Customizable session reminders
  • Race weekend weather forecasts
  • Results and championship standings
  • Home and Lock Screen widgets
Read full description

Circuits Calendar is a minimalist motorsport calendar companion built for clarity. Explore the circuits, plan your race weekend, and follow the championship in one clean, focused experience—designed to be checked in seconds or explored at your own pace. ========== Your Race Weekend Browse the season calendar and see session times in your local time zone. From practice to the race, keep the weekend’s schedule close at hand. ========== Interactive Circuit Views Swipe to rotate each circuit and touch and hold to reveal its turns and sectors. Go further with Explore: detailed 3D circuit models you can rotate, zoom, and inspect, alongside key facts including lap length, race distance, and elevation change. ========== Session Reminders Choose exactly which sessions matter to you: practice, qualifying, sprint qualifying, sprint, or race. Set individual reminders and choose when to be notified, from the session start to an hour beforehand. ========== Race Weekend Weather Check conditions at the circuit with forecasts powered by Apple Weather. View session weather, temperature, wind, and rain forecasts as the race weekend approaches. Forecasts are available closer to each session. ========== Results and Standings View race, qualifying, and sprint results in a clear, readable layout. Follow driver and team standings throughout the season, and open driver profiles to explore career statistics and season performance. ========== Widgets with Circuits+ Bring Circuits to your Home Screen and Lock Screen. Keep upcoming sessions in view, follow season progress, check championship points, and compare drivers or teams. Widgets require a Circuits+ subscription. ========== Made for iPhone and iPad Enjoy a focused experience on iPhone and a spacious layout on iPad. An interactive guide helps you discover the app by trying its features yourself. Available in English and Simplified Chinese, with light and dark appearances. Requires iOS 18.2 or iPadOS 18.2 or later. ========== Disclaimer Circuits Calendar is an independent, unofficial motorsport calendar app. It is not affiliated with, endorsed by, or associated with any racing series, governing body, team, venue, or event organizer. ========== Terms of Use: https://circuitscalendar.com/terms Privacy Policy: https://circuitscalendar.com/privacy Support Page: https://circuitscalendar.com/support

About

GridOne

This app provides Formula 1 fans with real-time race updates, schedules, and weather information. It offers live timing, 3D circuit views, and driver/team standings. Widgets and reminders ensure you never miss a moment of the F1 season.

Highlights
  • Live race updates
  • 3D circuit views
  • Race weekend weather
  • Full season calendar
  • Driver and team standings
  • Home and lock screen widgets
  • Race session reminders
Features
Read full description

GridOne, your race companion for Formula 1. Check the schedule and weather before the race, follow live timing and track activity as the action unfolds, and explore driver, team, and championship standings after the chequered flag. 【YOUR RACE-DAY SECOND SCREEN】 Live Race Updates: Stay on top of key race information as the action happens, keeping important updates within reach alongside the broadcast. 3D Circuits: Follow the race from a different perspective with a 3D view of the circuit and on-track activity. Race Weekend Weather: Keep an eye on the weather throughout the race weekend and get ready for every practice session, qualifying session, and race. Lock Screen Updates: Get race information at a glance on your Lock Screen, without repeatedly opening the app. 【THE COMPLETE SEASON】 Full Season Calendar: Explore the entire Grand Prix calendar and plan ahead for every race weekend. Race Data: Access key data and information for every race. Drivers & Teams: Get to know the drivers and teams, and follow their performances throughout the season. Points & Standings: View the Drivers’ and Constructors’ Championship standings and track how the points change over the season. 【WIDGETS FOR F1 FANS】 Bring your favourite F1 content to your Home Screen and Lock Screen. • Race schedules • Countdown to the next race • Favourite drivers • Favourite teams • Driver standings • Team standings • Custom themes More widgets and race-day features are on the way. 【RACE REMINDERS】 Set up notifications to suit the way you watch. When race weekend arrives, let GridOne remind you of key session times so you never miss practice, qualifying, or the race. For questions, suggestions, or bug reports, contact us: hi@gridoneapp.com 【SUBSCRIPTION INFORMATION】 Some GridOne features require GridOne Pro. Subscriptions renew automatically unless auto-renewal is turned off at least 24 hours before the end of the current subscription period. You can manage or cancel your subscription in your Apple Account settings after purchase. Privacy Policy: https://api.gridoneapp.com/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ 【DISCLAIMER】 GridOne is an independently developed, unofficial app. It is not affiliated with, partnered with, sponsored by, or endorsed by Formula 1, the FIA, any Formula 1 team or driver, or any other related official entity. F1, FORMULA ONE, FORMULA 1, FIA FORMULA ONE WORLD CHAMPIONSHIP, GRAND PRIX, and related names and logos are trademarks or other intellectual property of their respective owners. Names, race information, and other content featured in GridOne are used solely for informational and editorial purposes and do not imply any official endorsement, sponsorship, partnership, or affiliation.

Screenshots

Circuits Calendar4 screens
GridOne4 screens

Verdict

The call

The clearest difference is rating: Circuits Calendar at 5.0 against GridOne's 4.4. Circuits Calendar also leads on review sentiment (100% vs 79%). GridOne's advantage is ratings volume (7 vs 1). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Circuits Calendar sells 1 in-app purchase, starting at $4.99 per year and GridOne sells 3 in-app purchases, starting at $1.59 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Circuits Calendar holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: GridOne has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Circuits Calendar's written reviews are positive against 79% of GridOne's.

UpkeepUpdate frequency

Circuits Calendar ships an update every 2 weeks, GridOne weekly. The most recent releases landed on November 5, 2026 and November 7, 2026 respectively.

Scorecard3 real differences · 7 level
Circuits Calendar versus GridOne: the parameters behind the verdict, then further details
ParameterCircuits CalendarGridOne
PriceFreeFree
Rating5.0 (1 ratings) — better4.4 (7 ratings)
Positive reviews100.0% of reviews — better78.6% of reviews
Number of ratings17 — better
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad — betteriPhone
Requires iOS18.217.0 — better
Further details — not scored
Size313 MB251 MB
Age rating4+4+
DeveloperJiayi SunChengdu Xiyu Technology Co., Ltd

Customer experience

Circuits Calendar

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

GridOne

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews14 reviews
Positive78.6%
Neutral14.3%
Negative7.1%

In-app purchases

1 purchases

Circuits Calendar

Subscriptions1
  • Circuits+$4.991 Year
3 purchases

GridOne

Subscriptions2
  • Go+ Monthly$1.591 Month
  • Go+ Yearly$9.991 Year
One-time1
  • Go+ LIfetime$19.99

Questions

Is Circuits Calendar free?
Circuits Calendar is free to download, with in-app purchases available.
Is GridOne free?
GridOne is free to download, with in-app purchases available.
Which has better reviews, Circuits Calendar or GridOne?
Circuits Calendar is rated higher. Circuits Calendar averages 5.0 out of 5 from 1 ratings, while GridOne averages 4.4 from 7 ratings.
Do Circuits Calendar or GridOne have ads?
Neither Circuits Calendar nor GridOne shows ads.
Which is updated more often, Circuits Calendar or GridOne?
Circuits Calendar ships an update every 2 weeks, and GridOne weekly. Most recently, Circuits Calendar was updated on November 5, 2026 and GridOne on November 7, 2026.

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