# Desmos Test Mode vs Taculator 84 Graphing Calc

The clearest difference is rating: Taculator 84 Graphing Calc at 4.5 against Desmos Test Mode's 1.6. Taculator 84 Graphing Calc also leads on review sentiment (46% vs 17%) and update cadence (every 3 weeks vs every 4 months). Desmos Test Mode's advantage is in-app purchases (none vs 12). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Taculator 84 Graphing Calc sells 7 in-app purchases, starting at $3.99 per month. Desmos Test Mode asks for nothing beyond the download.

Taculator 84 Graphing Calc holds the better App Store score, 4.5 against 1.6. That said, the two scores are not equally well evidenced: Taculator 84 Graphing Calc has 7.7K 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 46% of Taculator 84 Graphing Calc's.

Desmos Test Mode ships an update every 4 months, Taculator 84 Graphing Calc every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Desmos Test Mode | Taculator 84 Graphing Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.6 (370 ratings)](https://appshunter.io/ios/app/desmos-test-mode/id977381005/reviews) | **[4.5 (7.7K ratings)](https://appshunter.io/ios/app/taculator-84-graphing-calc/id1457737367/reviews)** |
| Number of ratings | 370 | **7.7K** |
| Positive reviews | 16.5% of reviews | **45.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 57 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Desmos](https://appshunter.io/developer/653517543) | [Di Venisco UG (haftungsbeschrankt)](https://appshunter.io/developer/1449451480) |

## 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


### Taculator 84 Graphing Calc

[App page](https://appshunter.io/ios/app/taculator-84-graphing-calc/id1457737367)

This advanced calculator app offers comprehensive tools for high school and college students, covering everything from pre-algebra to calculus and statistics. It features high-resolution graphing, matrix operations, and detailed statistical analysis, all accessible through an intuitive interface.

**Highlights:** Scientific and advanced math functions, High-resolution graphing and plotting, Matrix operations and storage, List, statistics, and distribution calculations, Integrated command catalog and help, Complex number support, Share calculations via text or email

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Taculator Pro - Monthly | $3.99 | per month |
| Taculator Pro - Monthly | $3.99 | per month |
| Taculator Pro - Yearly | $14.99 | per year |
| Taculator Pro - Yearly | $14.99 | per year |
| Taculator Pro - Yearly | $29.99 | per year |
| Taculator Pro | $29.99 | per year |
| Taculator Pro - Lifetime | $7.99 | one-time |

**What reviewers like**

- 🚀 Excellent implementation and familiar layout
- 💡 Customizable buttons and color scheme
- 👍 Helpful and life-saving calculator
- 🚀 Best on-the-go calculator

**What reviewers complain about**

- 🐛 Crashes when trying to graph or use certain functions
- 🔒 Requires subscription to access full functionality
- 🐛 Inaccurate calculations and wrong results
- 🐛 Inconsistent performance and unreliable

**Reported bugs**

- Cannot handle negative powers
- Keyboard issues on certain devices
- Errors when trying to clear lists
- Scaling and UI issues on some devices

**Requested features**

- Add apps and programming features
- Improve graphing capabilities
- Add support for degrees, minutes, and seconds
- Implement symbolic calculus and equation solving


## Frequently asked questions

### Is Desmos Test Mode free?

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

### Is Taculator 84 Graphing Calc free?

Taculator 84 Graphing Calc is free to download, with in-app purchases available.

### Which has better reviews, Desmos Test Mode or Taculator 84 Graphing Calc?

Taculator 84 Graphing Calc is rated higher. Desmos Test Mode averages 1.6 out of 5 from 370 ratings, while Taculator 84 Graphing Calc averages 4.5 from 7.7K ratings.

### Do Desmos Test Mode or Taculator 84 Graphing Calc have ads?

Neither Desmos Test Mode nor Taculator 84 Graphing Calc shows ads.

### Which is updated more often, Desmos Test Mode or Taculator 84 Graphing Calc?

Desmos Test Mode ships an update every 4 months, and Taculator 84 Graphing Calc every 3 weeks. Most recently, Desmos Test Mode was updated on October 24, 2026 and Taculator 84 Graphing Calc on October 25, 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.*