# CALC Prime vs Calculate84 Plus

The clearest difference is price: Calculate84 Plus at Free against CALC Prime's $8.99. Calculate84 Plus also leads on ratings volume (305 vs 4) and rating (4.5 vs 4.3). CALC Prime's advantage is in-app purchases (none vs 10) and review sentiment (74% vs 64%). On update cadence, ads and device support there is nothing between them.

Calculate84 Plus is free to download; CALC Prime costs $8.99 up front. Calculate84 Plus sells 10 in-app purchases, starting at $2.99 per month. CALC Prime asks for nothing beyond the download.

Calculate84 Plus holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Calculate84 Plus has 305 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 74% of CALC Prime's written reviews are positive against 64% of Calculate84 Plus's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on August 28, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | CALC Prime | Calculate84 Plus |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | [4.3 (4 ratings)](https://appshunter.io/ios/app/calc-prime/id842563364/reviews) | **[4.5 (305 ratings)](https://appshunter.io/ios/app/calculate84-plus/id1472933065/reviews)** |
| Number of ratings | 4 | **305** |
| Positive reviews | **73.7% of reviews** | 64.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 9 MB | 33 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [QApps LLC](https://appshunter.io/developer/395652397) | [Di Venisco UG (haftungsbeschrankt)](https://appshunter.io/developer/1449451480) |

## What reviewers say

### CALC Prime

[App page](https://appshunter.io/ios/app/calc-prime/id842563364)

This advanced scientific calculator is designed for professionals and students, offering a wide range of functions, live conversions, and graphing capabilities. It features a history log, customizable themes, and easy expression editing, making complex calculations intuitive and visually appealing.

**Highlights:** Advanced scientific calculation, Smart Basic Graphing, Live currency and custom conversions, History log with aggregate functions, Customizable themes and layout, Native watchOS app and custom keyboard

**Features:** Apple Watch app

**In-app purchases:** none


### 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


## Frequently asked questions

### Is CALC Prime free?

CALC Prime costs $8.99, with no in-app purchases.

### Is Calculate84 Plus free?

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

### Which has better reviews, CALC Prime or Calculate84 Plus?

Calculate84 Plus is rated higher. CALC Prime averages 4.3 out of 5 from 4 ratings, while Calculate84 Plus averages 4.5 from 305 ratings.

### Do CALC Prime or Calculate84 Plus have ads?

Neither CALC Prime nor Calculate84 Plus shows ads.

### Which is updated more often, CALC Prime or Calculate84 Plus?

CALC Prime ships an update every 2 months, and Calculate84 Plus every 2 months. Most recently, CALC Prime was updated on August 28, 2026 and Calculate84 Plus on October 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.*