# Sig Figs Calculator vs MathAce

The clearest difference is rating: MathAce at 4.7 against Sig Figs Calculator's 3.0. MathAce also leads on update cadence (every 2 weeks vs every 48 months) and ratings volume (8.8K vs 2). Sig Figs Calculator's advantage is in-app purchases (none vs 3) and iOS requirement (10.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. MathAce sells 3 in-app purchases, starting at $6.99 per 7 days. Sig Figs Calculator asks for nothing beyond the download.

MathAce holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: MathAce has 8.8K ratings behind it against 2, so its average is the more settled of the two.

Sig Figs Calculator ships an update every 48 months, MathAce every 2 weeks. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sig Figs Calculator | MathAce |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/sig-figs-calculator/id1604141218/reviews) | **[4.7 (8.8K ratings)](https://appshunter.io/ios/app/mathace-solve-study-question/id6636481467/reviews)** |
| Number of ratings | 2 | **8.8K** |
| Positive reviews | — | 58.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 48 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 25 MB | 51 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ahmad Sattar](https://appshunter.io/developer/1458483953) | [精精 唐](https://appshunter.io/developer/1762202088) |

## What reviewers say

### Sig Figs Calculator

[App page](https://appshunter.io/ios/app/sig-figs-calculator/id1604141218)

This free tool helps students calculate significant figures for numbers, including rounding and scientific notation. It offers a simple interface for quick and efficient mathematical work.

**Highlights:** Calculate significant figures, Round decimal numbers, Convert to E notation, Convert to Scientific Notation, Simple and easy interface, No registration required

**Features:** macOS Compatibility

**In-app purchases:** none


### MathAce

[App page](https://appshunter.io/ios/app/mathace-solve-study-question/id6636481467)

This app helps students solve math problems across various subjects like algebra, geometry, and calculus. It offers instant photo problem solving, an advanced calculator, graphing tools, and step-by-step equation solutions to aid in understanding and mastering math concepts.

**Highlights:** Instant photo problem solving, Advanced calculator with unit conversions, Equation solver with step-by-step solutions, Graphing and visualization of functions, Handles algebra, geometry, and calculus

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MathAce Pro | $6.99 | per 7 days |
| AnsAce AI Premium | $9.99 | per month |
| AnsAce AI Premium | $79.99 | per year |

**What reviewers like**

- 🚀 Accurate answers
- 💡 Step-by-step explanations
- 👍 Helpful for improving grades
- 👍 Works for various subjects

**What reviewers complain about**

- 🐛 Inaccurate or incorrect answers
- 🔍 Limited free usage
- 🔍 Subscription required for more uses
- 🔍 Frequent ads

**Reported bugs**

- Answers not matching the problem
- App freezing or crashing
- Incompatible with older devices

**Requested features**

- Remove usage limits
- Bring back old Gauth app
- Add writing assistant feature


## Frequently asked questions

### Is Sig Figs Calculator free?

Sig Figs Calculator is free to download, with no in-app purchases.

### Is MathAce free?

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

### Which has better reviews, Sig Figs Calculator or MathAce?

MathAce is rated higher. Sig Figs Calculator averages 3.0 out of 5 from 2 ratings, while MathAce averages 4.7 from 8.8K ratings.

### Do Sig Figs Calculator or MathAce have ads?

Neither Sig Figs Calculator nor MathAce shows ads.

### Which is updated more often, Sig Figs Calculator or MathAce?

Sig Figs Calculator ships an update every 48 months, and MathAce every 2 weeks. Most recently, Sig Figs Calculator was updated on October 24, 2026 and MathAce on October 31, 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.*