Calculate84 vs Marlboro CSD NY
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculate84
This app offers a modern graphing calculator experience on your iPhone. It features fast, interactive touch-screen graphing, scrollable windows, and intelligent error messages for a more intuitive user experience. Designed to be a usable alternative to physical graphing calculators.
- Fast, interactive touch-screen graphing
- Scrollable windows
- Intelligent error messages
- Intuitive interface
- Designed for TI-84 users
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Graphing made for iPhone Calculate84 brings the graphing calculator experience to iPhone with a fast, touch-friendly design. What you can do: • Plot and explore graphs with smooth touch controls • Find familiar calculator functions quickly • Scroll naturally through equations and results • Get clearer, more helpful error messages • Send feedback directly from the app Why we built Calculate84 We relied on graphing calculators ourselves and wanted an app that felt easier to use on a modern phone. Before launch, we worked with students to refine the experience, and we continue improving it based on user feedback. Send feedback Tap the red Feedback button in the app. Terms of Use (EULA): https://calculate84.com/terms-of-use
Marlboro CSD NY
Stay informed about school events, district updates, and cafeteria menus. Customize notifications for your student's organizations and easily access staff contact information. Never miss important announcements or activities within the school district.
- Event calendar with sharing options
- Customizable notifications by organization
- Weekly cafeteria menus
- Live feed for district updates
- Staff and department directory
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Introducing the brand new app for Marlboro CSD NY. NEVER MISS AN EVENT The event section shows a list of events throughout the district. Users can add an event to their calendar to share the event with friends and family with one tap. CUSTOMIZE NOTIFICATIONS Select your student's organization within the app and make sure you never miss a message. CAFETERIA MENUS Within the dining section, you'll find an easy to navigate, weekly menu, sorted by day and meal type. DISTRICT UPDATES In the Live Feed is where you'll find updates from the administration about what's going on in the district right now. Whether that's celebrating a student's success, or reminding you about an upcoming deadline. CONTACT STAFF & DEPARTMENTS Find relevant staff and department contacts under an easy-to-navigate directory.
Screenshots
Verdict
The clearest difference is in-app purchases: Marlboro CSD NY at none against Calculate84's 6. Marlboro CSD NY also leads on ads (none vs shown) and iOS requirement (16.0 vs 18.0). Calculate84's advantage is update cadence (fortnightly vs every 5 months) and ratings volume (54K vs 4). On price 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. Calculate84 sells 6 in-app purchases, starting at $2.99 per month. Marlboro CSD NY asks for nothing beyond the download.
Calculate84 holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Calculate84 has 54K ratings behind it against 4, so its average is the more settled of the two.
Calculate84 ships an update fortnightly, Marlboro CSD NY every 5 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | Calculate84 | Marlboro CSD NY |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (54K ratings) — better | 4.5 (4 ratings) |
| Positive reviews | 74.7% of reviews | — |
| Number of ratings | 54K — better | 4 |
| Update frequency | Fortnightly — better | Every 5 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #135 — better | — |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 71 MB | 148 MB |
| Age rating | 12+ | 4+ |
| Developer | Century Light LLC | Marlboro Central School District |
Customer experience
Calculate84
Marlboro CSD NY
Bugs and requests
Calculate84
Reported bugs
4 issues- Crashes when using 2-sample T/Z interval functions
- Incorrect results for inverse trig functions
- Issues with graphing parabolas and tracing points
- Regression equation not displayed correctly
Requested features
5 requests- Add TVM solver functionality
- Implement more regression types
- Allow disabling of ads for free users
- Restore previous purchase benefits
- Optimize for mobile experience instead of emulating physical calculator
Marlboro CSD NY
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculate84
- Monthly Pro Subscription3 Days trial$2.991 Month
- Annual Pro Subscription7 Days trial$6.991 Year
- Lifetime Subscription$6.99
- Lifetime Subscription$9.99
- Lifetime Subscription$12.99
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- Lifetime Pro Subscription$29.99
Marlboro CSD NY
No in-app purchases
Questions
Is Calculate84 free?
Is Marlboro CSD NY free?
Which has better reviews, Calculate84 or Marlboro CSD NY?
Do Calculate84 or Marlboro CSD NY have ads?
Which is updated more often, Calculate84 or Marlboro CSD NY?
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