# Desmos Test Mode vs Graphing Calculator X84

The clearest difference is rating: Graphing Calculator X84 at 4.5 against Desmos Test Mode's 1.6. Graphing Calculator X84 also leads on ratings volume (50K vs 370) and review sentiment (38% vs 17%). Desmos Test Mode's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Graphing Calculator X84 sells 1 one-off in-app purchase. Desmos Test Mode asks for nothing beyond the download.

Graphing Calculator X84 holds the better App Store score, 4.5 against 1.6. That said, the two scores are not equally well evidenced: Graphing Calculator X84 has 50K ratings behind it against 370, so its average is the more settled of the two. Written reviews point the same way: 17% of Desmos Test Mode's written reviews are positive against 38% of Graphing Calculator X84's.

Desmos Test Mode ships an update every 4 months, Graphing Calculator X84 every 3 months. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Desmos Test Mode | Graphing Calculator X84 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.6 (370 ratings)](https://appshunter.io/ios/app/desmos-test-mode/id977381005/reviews) | **[4.5 (50K ratings)](https://appshunter.io/ios/app/graphing-calculator-x84/id1247828717/reviews)** |
| Number of ratings | 370 | **50K** |
| Positive reviews | 16.5% of reviews | **38.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 23 MB |
| Requires iOS | 16.0 | **12.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Desmos](https://appshunter.io/developer/653517543) | [Incpt.Mobis](https://appshunter.io/developer/445261166) |

## What reviewers say

### Desmos Test Mode

[App page](https://appshunter.io/ios/app/desmos-test-mode/id977381005)

This app provides restricted versions of graphing and scientific calculators designed to meet exam requirements. It allows users to practice for specific state or national assessments by selecting the appropriate test mode. Full, unrestricted calculator features are available in separate applications.

**Highlights:** Exam-compliant calculator modes, Graphing capabilities, Scientific calculator functions, Data tables and statistics, Interactive sliders, Points of interest on graphs

**In-app purchases:** none

**What reviewers like**

- 🚀 Useful app for tests
- 🔒 Secure calculator mode
- 👍 Free alternative to expensive calculators

**What reviewers complain about**

- 🐛 Buggy and unstable
- 🔒 Overly restrictive app lock
- 👎 Poor user interface and usability

**Reported bugs**

- App crashes and freezes during use
- Unexpected phone behavior and lockouts
- Compatibility issues across different devices and OS versions

**Requested features**

- Add customization options for the calculator interface
- Improve compatibility with older devices
- Provide more flexible calculator modes during tests


### Graphing Calculator X84

[App page](https://appshunter.io/ios/app/graphing-calculator-x84/id1247828717)

This app offers a free, powerful alternative to hardware graphing calculators. It supports basic to complex math, including graphing, statistics, and matrix operations, with a built-in user manual for assistance.

**Highlights:** Graphing of functions, Statistics and regression analysis, Matrix operations, Equation and polynomial solver, Integral and derivative calculation, Mathematical display

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Upgrade | $5.99 | one-time |

**What reviewers like**

- 🚀 Exact replica of TI-84 calculator
- 🤩 Great for school/college math
- 👍 Convenient to have on phone
- 💰 Cheaper than physical calculator

**What reviewers complain about**

- 📺 Intrusive and frequent ads
- 🔓 Key features locked behind paywall
- 🛑 Restricted functionality compared to physical TI-84
- 🤯 Ads disrupt focus during timed tests

**Reported bugs**

- Calculation errors on basic functions
- Graphing and programming features not working as expected
- Frequent crashes and freezes

**Requested features**

- Option to pay and remove ads
- More customization options
- Haptic feedback when pressing buttons
- Better integration with physical TI-84 calculators


## Frequently asked questions

### Is Desmos Test Mode free?

Desmos Test Mode is free to download, with no in-app purchases.

### Is Graphing Calculator X84 free?

Graphing Calculator X84 is free to download, with in-app purchases available.

### Which has better reviews, Desmos Test Mode or Graphing Calculator X84?

Graphing Calculator X84 is rated higher. Desmos Test Mode averages 1.6 out of 5 from 370 ratings, while Graphing Calculator X84 averages 4.5 from 50K ratings.

### Do Desmos Test Mode or Graphing Calculator X84 have ads?

Graphing Calculator X84 shows ads; Desmos Test Mode does not.

### Which is updated more often, Desmos Test Mode or Graphing Calculator X84?

Desmos Test Mode ships an update every 4 months, and Graphing Calculator X84 every 3 months. Most recently, Desmos Test Mode was updated on November 1, 2026 and Graphing Calculator X84 on November 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*