Calculate84
What is Calculate84?
Calculate84 is a graphing calculator app for iPhone, with a subtitle stating it is intended for use with the TI-84. The listing describes touch-based graph plotting and exploration, quick access to familiar calculator functions, and natural scrolling through equations and results. It also mentions clearer error messages and the ability to send feedback from within the app.
Pricing. Calculate84 is free to download, with in-app purchases on the App Store.
Good for
- Plotting and exploring graphs on an iPhone
- Working through equations and results with touch scrolling
- Sending feedback to the developer from inside the app
Screenshots
Why this app is in S tier
Calculate84 scores 93 out of 100: rating 96, rating count 87, App Store search rank 90, update recency 100. The four parts are averaged with no weights, and S tier follows from that score within this list. The full explanation, as data.
Description
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
Compare in Graphing
| Measure | |||
|---|---|---|---|
| Tier | S | S | A |
| Score | 93 / 100 | 90 / 100 | 87 / 100 |
| Rating | 4.8 ★ | 4.6 ★ | 4.5 ★ |
| Ratings | 54.1K | 5.1K | 7.6K |
| Latest ratings · 180d | 3.5 ★ · 20 reviews | — | — |
| Last update | 50d ago | 4d ago | 11d ago |
| Price | Free + IAP | Free download | Free + IAP |
Alternatives
See all 5 ›
Graphing Calculator 84Free download · ★ 4.6S
Taculator 84 Graphing CalcFree + IAP · ★ 4.5A
Graphing Calculator X84Free + IAP · ★ 4.5A
Questions about Calculate84
Is Calculate84 free?
The app is free to download.
Is Calculate84 made by or affiliated with Texas Instruments?
Not stated on the App Store. The subtitle says the app is intended for use with the TI-84.
How do I send feedback or read the terms?
Tap the red Feedback button in the app. The Terms of Use (EULA) are at https://calculate84.com/terms-of-use.
What is Calculate84 good for?
Calculate84 is built for plotting and exploring graphs on an iPhone, working through equations and results with touch scrolling, sending feedback to the developer from inside the app. It sits in the graphing list on AppTierList.
Is Calculate84 worth it?
Calculate84 is S tier, ranked #1 of 6 graphing apps with a score of 93 out of 100, from a 4.8 App Store rating across 54,078 ratings. That is the top of its list.
How does Calculate84 compare to Graphing Calculator 84?
Calculate84 is S tier at 93; Graphing Calculator 84 is S tier at 90. Calculate84 ranks higher. Calculate84 is free to download, with in-app purchases, Graphing Calculator 84 is free to download.
How often is Calculate84 updated?
Calculate84 was last updated on 2026-08-31, 50 days ago.
All the facts
- List
- Graphing
- Tier
- S (Best in class)
- Score
- 93 / 100
- Rank in list
- #1 of 6
- Ranking certainty
- settled
- Price
- Free + IAP
- App Store rating
- 4.8 out of 5
- Number of ratings
- 54,078
- Recent reviews
- 3.5 from 20 in the last 180 days
- Current version
- (50 days ago)
- App Store data read
- App Store category
- Education
- Good for
- Plotting and exploring graphs on an iPhone, Working through equations and results with touch scrolling, Sending feedback to the developer from inside the app
- Requires
- iOS 18.0 or later
- Size
- 71 MB
- Age rating
- 12+
- Languages
- 1
- Developer pages
- Website · Support · Privacy policy
- Maker
- unclaimed
- As data
- JSON · why it ranks here
Ranking refreshed · how it is computed