# Calculate84 Plus vs CSAB Lecturio

The clearest difference is in-app purchases: CSAB Lecturio at none against Calculate84 Plus's 10. Calculate84 Plus's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Calculate84 Plus sells 10 in-app purchases, starting at $2.99 per month. CSAB Lecturio asks for nothing beyond the download.

## The numbers

| Metric | Calculate84 Plus | CSAB Lecturio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (305 ratings)](https://appshunter.io/ios/app/calculate84-plus/id1472933065/reviews)** | — |
| Number of ratings | **305** | — |
| Positive reviews | 64.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 33 MB | 118 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Di Venisco UG (haftungsbeschrankt)](https://appshunter.io/developer/1449451480) | [Lecturio GmbH](https://appshunter.io/developer/667474928) |

## What reviewers say

### Calculate84 Plus

[App page](https://appshunter.io/ios/app/calculate84-plus/id1472933065)

This app provides advanced scientific and graphing calculator functionality. It allows users to plot multiple functions, perform complex mathematical operations, analyze data with statistics, and manage matrices. An optional subscription unlocks even more features.

**Highlights:** Natural textbook equation input, Plot multiple functions with touch controls, Advanced math, number, and probability functions, 1- and 2- Variable statistics, Matrix arithmetic and equation solving, Extensive command catalog

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HyperCalc - Monthly | $2.99 | per month |
| HyperCalc - Monthly | $2.99 | per month |
| HyperCalc - Monthly | $4.99 | per month |
| HyperCalc - Monthly | $4.99 | per month |
| HyperCalc - Yearly | $14.99 | per year |
| HyperCalc - Yearly | $14.99 | per year |
| HyperCalc - Yearly | $19.99 | per year |
| HyperCalc - Yearly | $19.99 | per year |
| HyperCalc - Lifetime | $29.99 | one-time |
| HyperCalc - Lifetime | $39.99 | one-time |

**What reviewers like**

- 👍 Similar to TI-84
- 👍 Good for stats
- 👍 Accurate calculations
- 👍 No ads
- 👍 Fresh design

**What reviewers complain about**

- 💰 Many features require payment
- 💰 Not free as advertised
- 💰 Subscription model disliked
- 💰 Lifetime purchase issues
- 💰 Expensive ($30)

**Reported bugs**

- Domain incorrect in y= table
- App closes when pulling up table
- Cannot input negative matrices
- App freezes during IAP search
- Cannot drag functions

**Requested features**

- Dark mode
- Numeric solver (free)
- 2nd function
- Chinese language support
- Tutorial videos


### CSAB Lecturio

[App page](https://appshunter.io/ios/app/csab-lecturio/id6802300406)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Calculate84 Plus free?

Calculate84 Plus is free to download, with in-app purchases available.

### Is CSAB Lecturio free?

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

### Do Calculate84 Plus or CSAB Lecturio have ads?

Neither Calculate84 Plus nor CSAB Lecturio shows ads.

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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.*