Mathway vs Calculate84
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mathway
Solve math problems instantly by taking a photo or typing your question. Get step-by-step solutions for algebra, graphing, calculus, and more. Understand complex math concepts with unlimited access to answers.
- Math problem solver
- Homework scanner
- Step-by-step solutions
- Algebra solver
- Graphing calculator
- Calculus solver
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Mathway is the world’s smartest math calculator for algebra, graphing, calculus and more! Mathway gives you unlimited access to math solutions that can help you understand complex concepts. Simply point your camera and snap a photo or type your math homework question for step-by-step answers. If a premium subscription option is selected: • Payment will be charged to iTunes Account at confirmation of purchase • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period • Account will be charged for renewal within 24-hours prior to the end of the current period, at the same monthly or annual rate selected at the beginning of the subscription • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase Terms of Use: https://www.mathway.com/terms Privacy Policy: https://www.mathway.com/privacy
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
Screenshots
Verdict
Mathway and Calculate84 both sit at 4.9 stars, but that hides the real split: 74% of Calculate84's written reviews are positive against 51% of Mathway's. Mathway's advantage is ratings volume (425K vs 53K). 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. Mathway sells 8 in-app purchases, starting at $9.99 per month and Calculate84 sells 6 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.9 for Mathway against 4.8 for Calculate84. That said, the two scores are not equally well evidenced: Mathway has 425K ratings behind it against 53K, so its average is the more settled of the two. Written reviews are what separate them: 51% of Mathway's written reviews are positive against 74% of Calculate84's.
Mathway ships an update every 4 weeks, Calculate84 fortnightly. The most recent releases landed on September 27, 2026 and September 28, 2026 respectively.
| Parameter | Mathway | Calculate84 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (425K ratings) — better | 4.8 (53K ratings) |
| Positive reviews | 50.6% of reviews | 74.2% of reviews — better |
| Number of ratings | 425K — better | 53K |
| Update frequency | Every 4 weeks | Fortnightly — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #120 — better | #127 |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 82 MB | 71 MB |
| Age rating | 4+ | 12+ |
| Developer | Chegg, Inc. | Century Light LLC |
Customer experience
Mathway
Calculate84
User reviews
Mathway
From 425K App Store ratingsWhat we love
- 🚀 Reliable and accurate
- 👍 Helpful for math homework and studying
- 🚀 Fast and efficient
- 👍 Explains step-by-step solutions
- 👍 Supports wide range of math topics
Room to improve
- 💰 Subscription required for full features
- 🐛 Inconsistent performance, crashes
- 🔍 Difficulty cropping/uploading photos
- 🔍 Limited free features, paywall
Calculate84
From 53K App Store ratingsWhat we love
- 👍 Identical to TI-84 calculator
- 🚀 Seamless and intuitive user experience
- 💰 Affordable alternative to physical calculator
- 📱 Convenient to have on phone
- 🔍 Comprehensive functionality matching physical calculator
Room to improve
- 🐛 Occasional bugs and crashes
- 🔍 Missing some advanced features like regression types
- 🔒 Previous purchases removed without warning
- 💰 Subscription model can be expensive
- 📺 Intrusive ads in free version
Bugs and requests
Mathway
Reported bugs
2 issues- Camera issues, unable to focus on problems
- Subscription issues, unable to access paid features
Requested features
3 requests- Dark mode option
- Ability to copy/paste equations
- Improved free version with step-by-step solutions
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
In-app purchases
Mathway
- Steps (Monthly)3 variants$9.991 Month
- Steps (Monthly)3 Days trial$9.991 Month
- Steps (Monthly)7 Days trial2 variants$9.991 Month
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- Steps (Monthly)$19.991 Month
- Steps (Annual)$39.991 Year
- Steps (Annual)3 Days trial$39.991 Year
- Steps (Annual)7 Days trial2 variants$39.991 Year
- Steps (Annual)$79.991 Year
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








