# Calculate84 vs GuamCC Experience

The clearest difference is in-app purchases: GuamCC Experience at none against Calculate84's 6. GuamCC Experience also leads on ads (none vs shown). Calculate84's advantage is update cadence (fortnightly vs every 24 months) and chart position (#101 vs unranked). On price and device support there is nothing between them.

Both are free to download. Calculate84 sells 6 in-app purchases, starting at $2.99 per month. GuamCC Experience asks for nothing beyond the download.

Calculate84 ships an update fortnightly, GuamCC Experience every 24 months. The most recent releases landed on November 4, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Calculate84 | GuamCC Experience |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (54K ratings)](https://appshunter.io/ios/app/calculate84/id1459712793/reviews)** | — |
| Number of ratings | **54K** | — |
| Positive reviews | 74.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 24 months |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#101** | — |
| Size | 71 MB | 31 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Century Light LLC](https://appshunter.io/developer/1459712792) | [Guam Community College](https://appshunter.io/developer/1485319993) |

## What reviewers say

### Calculate84

[App page](https://appshunter.io/ios/app/calculate84/id1459712793)

**Currently charting:** #101 Top Free · Education (US App Store)

This app offers a modern graphing calculator experience on your iPhone. It features fast, interactive touch-screen graphing, scrollable windows, and intelligent error messages for a more intuitive user experience. Designed to be a usable alternative to physical graphing calculators.

**Highlights:** Fast, interactive touch-screen graphing, Scrollable windows, Intelligent error messages, Intuitive interface, Designed for TI-84 users

**Features:** Family Sharing, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Subscription | $2.99 | per month |
| Annual Pro Subscription | $6.99 | per year |
| Lifetime Subscription | $6.99 | one-time |
| Lifetime Subscription | $9.99 | one-time |
| Lifetime Subscription | $12.99 | one-time |
| Lifetime Pro Subscription | $29.99 | one-time |

**What reviewers like**

- 👍 Identical to TI-84 calculator
- 🚀 Seamless and intuitive user experience
- 💰 Affordable alternative to physical calculator
- 📱 Convenient to have on phone
- 🔍 Comprehensive functionality matching physical calculator

**What reviewers complain about**

- 🐛 Occasional bugs and crashes
- 🔍 Missing some advanced features like regression types
- 🔒 Previous purchases removed without warning
- 💰 Subscription model can be expensive
- 📺 Intrusive ads in free version

**Reported bugs**

- Crashes when using 2-sample T/Z interval functions
- Incorrect results for inverse trig functions
- Issues with graphing parabolas and tracing points
- Regression equation not displayed correctly

**Requested features**

- Add TVM solver functionality
- Implement more regression types
- Allow disabling of ads for free users
- Restore previous purchase benefits
- Optimize for mobile experience instead of emulating physical calculator


### GuamCC Experience

[App page](https://appshunter.io/ios/app/guamcc-experience/id6503721040)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculate84 free?

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

### Is GuamCC Experience free?

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

### Do Calculate84 or GuamCC Experience have ads?

Calculate84 shows ads; GuamCC Experience does not.

### Which is updated more often, Calculate84 or GuamCC Experience?

Calculate84 ships an update fortnightly, and GuamCC Experience every 24 months. Most recently, Calculate84 was updated on November 4, 2026 and GuamCC Experience 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.*