Sync Sphere vs Acute Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sync Sphere
Simplify social event coordination with this app. Create private rooms for gatherings, share codes for easy access, and instantly see everyone's availability to find the perfect time. Enjoy a user-friendly, cross-platform experience designed for effortless planning.
- Personalized planning rooms for events
- Simple room code sharing for guests
- View group availability at a glance
- User-friendly interface
- Cross-platform accessibility
- Invite-only rooms for privacy
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Are you tired of endless group chats and email threads trying to plan a simple get-together? Sync Sphere is here to streamline your social planning with ease and efficiency. Say goodbye to the hassle of coordinating schedules and hello to more time with friends! Create a Room, Share, and Sync! Personalized Planning Rooms: Start by creating a unique room for each event or gathering. Whether it’s a casual brunch, a birthday party, or a weekend getaway, Sync Sphere has got you covered. Simple Room Code Sharing: Once your room is set, share a unique code with your friends. They can join in seconds and add their availability without any fuss. Find the Perfect Time: View everyone’s availability at a glance. Sync Sphere’s intuitive interface makes it a breeze to pinpoint the best date and time that works for everyone. Features That Make Planning a Joy: User-Friendly Interface: Our sleek design ensures ease of use for everyone, regardless of tech savvy. Cross-Platform Accessibility: No matter your mobile operating system, Sync Sphere keeps everyone in the loop. Privacy and Security: Your privacy matters! Rooms are invite-only, ensuring your plans stay between you and your friends. Secure data handling to protect your information. Ready to Transform Your Social Planning? Download Sync Sphere now and start planning your next memorable get-together with ease and fun!
Acute Calculator
This advanced graphing calculator offers a visual editor and supports over 30 functions. It includes features like a history tape, variable storage, and an intuitive palette system for complex calculations.
- Visual editor
- 30+ functions supported
- History tape
- Store variables
- Intuitive palette system
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+ Easy to use visual editor + Supports 30+ functions + Intuitive palette system + Comes with history tape + Store variables for later + No ads or subscriptions Terms of Use: https://acutecalc.app/terms Privacy Policy: https://acutecalc.app/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Sync Sphere at none against Acute Calculator's 3. Acute Calculator's advantage is ratings volume (116 vs 1). On price, rating, update cadence and ads 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. Acute Calculator sells 3 one-off in-app purchases. Sync Sphere asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Sync Sphere against 4.9 for Acute Calculator. That said, the two scores are not equally well evidenced: Acute Calculator has 116 ratings behind it against 1, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 19, 2026 and October 16, 2026 respectively.
| Parameter | Sync Sphere | Acute Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.9 (116 ratings) |
| Positive reviews | — | 94.9% of reviews |
| Number of ratings | 1 | 116 — better |
| Update frequency | Every 2 days | Every 2 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 44 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Joseph Roskopf | Find App, Inc. |
Customer experience
Sync Sphere
Acute Calculator
Bugs and requests
Sync Sphere
Not enough reviews yet to summarise bugs or requests.
Acute Calculator
Reported bugs
6 issues- Animation and UI bugs
- Discount button crashes app
- Animation lags and skips when sliding down history
- Calculations are incorrect
- Does not follow correct order of operations
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- Transition for history is slow
Requested features
11 requests- Make app icon simpler/restrained
- Add units to graph
- Allow press and hold on graph lines for values
- Support Korean language
- Display commas while entering numbers
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- Double-tap to recenter graph interface
- Ability to solve for a variable
- Dedicated button for +/-
- Option to pin in control center
- Make comma separator format selectable
- Improve app icon design
In-app purchases
Sync Sphere
No in-app purchases
Acute Calculator
- Acute Plus Limited-Time Offer$3.49
- Acute Plus (For Students)$4.99
- Acute Plus (One Time)$6.99
Questions
Is Sync Sphere free?
Is Acute Calculator free?
Which has better reviews, Sync Sphere or Acute Calculator?
Do Sync Sphere or Acute Calculator have ads?
Which is updated more often, Sync Sphere or Acute Calculator?
Other comparisons
