# Plottron vs Acute Calculator

The clearest difference is in-app purchases: Plottron at none against Acute Calculator's 3. Acute Calculator's advantage is update cadence (every 2 days vs every 2 months) and ratings volume (116 vs 12). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Acute Calculator sells 3 one-off in-app purchases. Plottron asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Plottron against 4.9 for Acute Calculator. That said, the two scores are not equally well evidenced: Acute Calculator has 116 ratings behind it against 12, so its average is the more settled of the two. Written reviews are what separate them: 100% of Plottron's written reviews are positive against 95% of Acute Calculator's.

Plottron ships an update every 2 months, Acute Calculator every 2 days. The most recent releases landed on October 1, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Plottron | Acute Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (12 ratings)](https://appshunter.io/ios/app/plottron/id1037723649/reviews) | **[4.9 (116 ratings)](https://appshunter.io/ios/app/acute-calculator/id6476837563/reviews)** |
| Number of ratings | 12 | **116** |
| Positive reviews | **100.0% of reviews** | 94.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 16 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Billy Lin](https://appshunter.io/developer/1037723648) | [Find App, Inc.](https://appshunter.io/developer/1666757711) |

## What reviewers say

### Plottron

[App page](https://appshunter.io/ios/app/plottron/id1037723649)

This application offers advanced 2D and 3D graphing capabilities for various function types, alongside a comprehensive scientific calculator. It supports implicit graphing, complex number visualization, and symbolic differentiation. The calculator includes user-defined variables, live evaluation, and probability density functions.

**Highlights:** 2D and 3D graphing, Implicit graphing, Complex number visualization, Symbolic differentiation, User-defined variables and functions, Live evaluation, Calculation history

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

**In-app purchases:** none


### Acute Calculator

[App page](https://appshunter.io/ios/app/acute-calculator/id6476837563)

This advanced graphing calculator offers a visual editor and supports over 30 functions. It includes features like a history tape, variable storage, and an intuitive palette system for complex calculations.

**Highlights:** Visual editor, 30+ functions supported, History tape, Store variables, Intuitive palette system

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Acute Plus Limited-Time Offer | $3.49 | one-time |
| Acute Plus (For Students) | $4.99 | one-time |
| Acute Plus (One Time) | $6.99 | one-time |

**What reviewers like**

- ✨ Beautiful and artistic design
- 🚀 Advanced functionality beyond default
- 👍 Smooth animations and transitions
- 💡 Intuitive and user-friendly interface
- ✅ Replaces default calculator effectively

**What reviewers complain about**

- 🐛 Animation lag in history
- 🤔 Graph lacks numbers/functional purpose
- 💸 Calculus functions require payment
- ❓ Discount button crashes app
- 🐞 UI bugs and animations

**Reported bugs**

- Animation and UI bugs
- Discount button crashes app
- Animation lags and skips when sliding down history
- Calculations are incorrect
- Does not follow correct order of operations

**Requested features**

- Make app icon simpler/restrained
- Add units to graph
- Allow press and hold on graph lines for values
- Support Korean language
- Display commas while entering numbers


## Frequently asked questions

### Is Plottron free?

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

### Is Acute Calculator free?

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

### Which has better reviews, Plottron or Acute Calculator?

Acute Calculator is rated higher. Plottron averages 4.8 out of 5 from 12 ratings, while Acute Calculator averages 4.9 from 116 ratings.

### Do Plottron or Acute Calculator have ads?

Neither Plottron nor Acute Calculator shows ads.

### Which is updated more often, Plottron or Acute Calculator?

Plottron ships an update every 2 months, and Acute Calculator every 2 days. Most recently, Plottron was updated on October 1, 2026 and Acute Calculator on October 16, 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.*