# Taculator 84 Graphing Calc vs ISOKIT

The clearest difference is in-app purchases: ISOKIT at none against Taculator 84 Graphing Calc's 12. ISOKIT also leads on rating (5.0 vs 4.5) and iOS requirement (13.0 vs 15.0). Taculator 84 Graphing Calc's advantage is ratings volume (7.7K vs 3). On price, update cadence, ads and device support 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. ISOKIT asks for nothing beyond the download.

ISOKIT holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Taculator 84 Graphing Calc has 7.7K ratings behind it against 3, so its average is the more settled of the two.

Taculator 84 Graphing Calc ships an update every 3 weeks, ISOKIT every 11 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Taculator 84 Graphing Calc | ISOKIT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (7.7K ratings)](https://appshunter.io/ios/app/taculator-84-graphing-calc/id1457737367/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/isokit/id6455426903/reviews)** |
| Number of ratings | **7.7K** | 3 |
| Positive reviews | 45.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 57 MB | 3 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Di Venisco UG (haftungsbeschrankt)](https://appshunter.io/developer/1449451480) | [Maxwell Tawiah](https://appshunter.io/developer/1699980455) |

## What reviewers say

### 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


### ISOKIT

[App page](https://appshunter.io/ios/app/isokit/id6455426903)

This app serves as a comprehensive resource hub for college students, facilitating resource sharing, housing assistance, scholarship updates, and job/internship opportunities. It also connects students for social interaction and provides a marketplace for used books, aiming to enhance the academic experience.

**Highlights:** Resource sharing, Housing solutions, Scholarship newsletters, Job and internship listings, Student socialization, Used book marketplace

**In-app purchases:** none


## Frequently asked questions

### Is Taculator 84 Graphing Calc free?

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

### Is ISOKIT free?

ISOKIT is free to download, with no in-app purchases.

### Which has better reviews, Taculator 84 Graphing Calc or ISOKIT?

ISOKIT is rated higher. Taculator 84 Graphing Calc averages 4.5 out of 5 from 7.7K ratings, while ISOKIT averages 5.0 from 3 ratings.

### Do Taculator 84 Graphing Calc or ISOKIT have ads?

Neither Taculator 84 Graphing Calc nor ISOKIT shows ads.

### Which is updated more often, Taculator 84 Graphing Calc or ISOKIT?

Taculator 84 Graphing Calc ships an update every 3 weeks, and ISOKIT every 11 days. Most recently, Taculator 84 Graphing Calc was updated on October 26, 2026 and ISOKIT on October 24, 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.*