# Calculate84 vs Athena Network

The clearest difference is rating: Calculate84 at 4.8 against Athena Network's 4.0. Calculate84 also leads on ratings volume (54K vs 12) and chart position (#99 vs unranked). Athena Network's advantage is in-app purchases (none vs 6) and ads (none vs shown). On price, review sentiment, update cadence 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. Athena Network asks for nothing beyond the download.

Calculate84 holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Calculate84 has 54K ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 75% of Calculate84's written reviews are positive against 67% of Athena Network's.

Calculate84 ships an update fortnightly, Athena Network every 3 weeks. The most recent releases landed on October 30, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Calculate84 | Athena Network |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (54K ratings)](https://appshunter.io/ios/app/calculate84/id1459712793/reviews)** | [4.0 (12 ratings)](https://appshunter.io/ios/app/athena-network/id1628317342/reviews) |
| Number of ratings | **54K** | 12 |
| Positive reviews | **74.6% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#99** | — |
| Size | 71 MB | 24 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Century Light LLC](https://appshunter.io/developer/1459712792) | [Ammar Fakih](https://appshunter.io/developer/1628317344) |

## What reviewers say

### Calculate84

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

**Currently charting:** #99 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


### Athena Network

[App page](https://appshunter.io/ios/app/athena-network/id1628317342)

Easily browse college courses, plan your academic schedule, and discover campus events. Build a custom profile and explore campus happenings. Designed for students at participating institutions.

**Highlights:** Browse course catalogs, Plan academic schedules, Add classes and events to calendar, Explore campus Discover Page, Build custom user profiles

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calculate84 free?

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

### Is Athena Network free?

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

### Which has better reviews, Calculate84 or Athena Network?

Calculate84 is rated higher. Calculate84 averages 4.8 out of 5 from 54K ratings, while Athena Network averages 4.0 from 12 ratings.

### Do Calculate84 or Athena Network have ads?

Calculate84 shows ads; Athena Network does not.

### Which is updated more often, Calculate84 or Athena Network?

Calculate84 ships an update fortnightly, and Athena Network every 3 weeks. Most recently, Calculate84 was updated on October 30, 2026 and Athena Network on October 11, 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.*