DoodleConnect vs Circle & Sphere
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DoodleConnect
Monitor your child's educational development across multiple learning applications. Stay informed about their achievements, progress through the curriculum, and receive real-time updates on their learning journey.
- Instant progress notifications
- View latest achievements
- Track stars earned
- Follow curriculum progress
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Track your child's progress across all four Doodle apps with DoodleConnect! With the help of DoodleConnect, you can get involved with your child's learning journey like never before. ▶ Key features • Receive instant notifications about their progress • View their latest achievements and see how many stars they've earned • Follow their progress through the curriculum DoodleConnect is free for all Doodle users, whether you have a home or school subscription.
Circle & Sphere
Instantly solve geometry problems for homework and exams. Calculate circle and sphere properties with step-by-step solutions. Access learning videos and manage your calculations.
- Circle calculations (radius, diameter, circumference, area)
- Sphere calculations (surface area, volume)
- Circular sector calculations
- Step-by-step solutions
- Learning videos
- Solution management
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Do your homework instantly. Prepare for exams without stress. Free, complete step-by-step solutions. Enter your values and calculate: - Circle: radius, diameter, circumference and area - Sphere: surface area and volume - Circular sector: arc length and central angle HOW IT WORKS Enter your values in the correct fields and get started. You receive the solution instantly and can share it with friends or classmates. YOUR PERSONAL DATA We don’t need it. Only anonymized data is collected, for example: - which features are used - how many solutions are generated This helps us improve. We cannot identify you. COSTS Everything is free to use. 24/7 access to your solutions. All solution steps always remain complete. If you need many solutions in a short time, various purchase options are available. EXTRAS - Overview of all measures - all length units - curated learning videos - feedback for incorrect inputs - manage your own solutions - app introduction CONTACT Questions and feedback via Discord or directly in the app review.
Screenshots
Verdict
The clearest difference is review sentiment: Circle & Sphere at 100% against DoodleConnect's 56%. Circle & Sphere also leads on update cadence (every 3 weeks vs every 2 months). DoodleConnect's advantage is rating (4.7 vs 4.0) and in-app purchases (none vs 8). 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
Both are free to download. Circle & Sphere sells 8 one-off in-app purchases. DoodleConnect asks for nothing beyond the download.
DoodleConnect holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: DoodleConnect has 56 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 56% of DoodleConnect's written reviews are positive against 100% of Circle & Sphere's, so the app with the better star average is not the one people write more warmly about.
DoodleConnect ships an update every 2 months, Circle & Sphere every 3 weeks. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.
| Parameter | DoodleConnect | Circle & Sphere |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (56 ratings) — better | 4.0 (4 ratings) |
| Positive reviews | 56.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 56 — better | 4 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 37 MB | 180 MB |
| Age rating | 17+ | 4+ |
| Developer | Discovery Education Inc. | Glindemann, Sennoun, Langer GbR |
Customer experience
DoodleConnect
Circle & Sphere
Bugs and requests
DoodleConnect
Reported bugs
33 issues- Losing streak
- No synching between apps on different devices
- Not synching with Doodle Connect app
- Latest update ruined the app
- Can't understand children's results anymore
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- Lots of annoying little glitches
- Doesn't work on most devices
- App keeps switching off
- Update is not working
- Can't see message and screen freeze on tapping message icon
- Can't go back to view another sibling's account
- Lack accuracy
- Difficult to collate the information needed
- App won't work
- Doesn't really work
- Can only see one or none of children's progress
- Says child is on 0 day streak when they are not
- Too many glitches in system
- Doesn't record all points when signing in across different devices
- Parent app no longer works
- Last version defective
- Parent dashboard cannot log on
- Misleading info, doesn't relate to child's DM app
- Doodle Stars on DM different to parent area and parent app
- Cannot delete and reinstall because info is stored in the cloud
- Delay between parent app and DoodleMaths app
- Today's or yesterday's stars not showing in metrics
- Missing lots of data
- No longer works since update
- Latest version crap, glitchy
- Have to enter credentials regularly
- Live View never shows anything
- App is full of fundamental design flaws
Requested features
35 requests- Bring back old version
- More comprehensive initial test
- More challenging levels
- Option to add extra material for all students
- Better graphing options
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- See everything that is on the website within the app
- Add more data feed options
- Improve user experience
- Improve design
- Option to create graphs of all students
- Option to select metrics for graphing
- Improve Live View functionality
- Real-time syncing between apps and devices
- Fix streak issues
- Fix synching issues with Doodle Connect
- Allow multiple accounts under one login
- Make app more engaging after all questions are done
- Improve accuracy of reports
- Simplify setup process
- Offer combined order discounts
- Improve customer service responsiveness and helpfulness
- Fix login issues
- Improve accuracy of streaks and progress tracking
- Improve message viewing and replying
- Allow switching between sibling accounts easily
- Make app more user-friendly
- Bring back old app features
- Make app more interactive
- Improve data visualization
- Add dark mode
- Improve reporting accuracy
- Fix app freezing issues
- Improve parent app functionality
- Make app more intuitive
- Improve accuracy of Doodle Age
Circle & Sphere
Not enough reviews yet to summarise bugs or requests.
In-app purchases
DoodleConnect
No in-app purchases
Circle & Sphere
- +30 User Tokens$0.29
- +1 Convenience Token / 6h, max. +2$0.59
- +2 Convenience Tokens / 6h, max. +4$0.99
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- +150 User Tokens$0.99
- +300 User Tokens$1.49
- +4 Convenience Tokens / 6h, max. +8$1.59
- Remove Ads$2.99
- Lifetime Access$2.99
Questions
Is DoodleConnect free?
Is Circle & Sphere free?
Which has better reviews, DoodleConnect or Circle & Sphere?
Do DoodleConnect or Circle & Sphere have ads?
Which is updated more often, DoodleConnect or Circle & Sphere?
Other comparisons
