# EMD PTE vs Sig Fig Tutor

The clearest difference is update cadence: EMD PTE at every 8 months against Sig Fig Tutor's every 49 months. EMD PTE also leads on ratings volume (124 vs 31). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sig Fig Tutor holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 124 and 31 respectively. Written reviews point the same way: 90% of EMD PTE's written reviews are positive against 95% of Sig Fig Tutor's.

EMD PTE ships an update every 8 months, Sig Fig Tutor every 49 months. The most recent releases landed on October 21, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | EMD PTE | Sig Fig Tutor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (124 ratings)](https://appshunter.io/ios/app/emd-pte/id377393859/reviews) | **[4.8 (31 ratings)](https://appshunter.io/ios/app/sig-fig-tutor/id1460598554/reviews)** |
| Number of ratings | **124** | 31 |
| Positive reviews | 90.5% of reviews | **95.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 49 months |
| Monetization | Free | Free |
| Size | 18 MB | 54 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Merck KGaA (Darmstadt, Germany)](https://appshunter.io/developer/370548001) | [Cheryl Montgomery](https://appshunter.io/developer/611176285) |

## What reviewers say

### EMD PTE

[App page](https://appshunter.io/ios/app/emd-pte/id377393859)

This comprehensive mobile reference work provides detailed information on all chemical elements. It features a molar mass calculator, interactive visualizations, and offline access, making it an indispensable tool for students, educators, and chemistry enthusiasts.

**Highlights:** Detailed element information, Visualized element properties, Molar mass calculator, Offline access, Multi-language support, Element comparison function

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent user interface
- 🚀 Intuitive and easy to use
- 💡 Comprehensive information on elements
- 🔍 Detailed element properties and data
- 🎨 Visually appealing design

**What reviewers complain about**

- 🐛 Occasional crashes or freezes
- 🔍 Missing some advanced features
- 🔧 Needs optimization for newer devices
- 🔢 Inconsistent unit display (Fahrenheit vs Celsius)

**Reported bugs**

- Incorrect atomic radius data for some elements
- Glitches when switching between screens

**Requested features**

- Add search functionality
- Provide more customization options
- Include isotope and mass data
- Improve navigation between elements


### Sig Fig Tutor

[App page](https://appshunter.io/ios/app/sig-fig-tutor/id1460598554)

Master significant figures with this educational tool. Learn the rules, practice identifying sig figs in measurements, and apply them to calculations involving multiplication, division, addition, and subtraction.  It helps determine the correct way to report final answers.

**Highlights:** Learn significant figure rules, Practice identifying sig figs, Estimate answers with multiplication/division, Estimate answers with addition/subtraction, Determine reporting rules for final answers, Challenges for skill assessment

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EMD PTE free?

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

### Is Sig Fig Tutor free?

Sig Fig Tutor is free to download, with no in-app purchases.

### Which has better reviews, EMD PTE or Sig Fig Tutor?

Sig Fig Tutor is rated higher. EMD PTE averages 4.6 out of 5 from 124 ratings, while Sig Fig Tutor averages 4.8 from 31 ratings.

### Do EMD PTE or Sig Fig Tutor have ads?

Neither EMD PTE nor Sig Fig Tutor shows ads.

### Which is updated more often, EMD PTE or Sig Fig Tutor?

EMD PTE ships an update every 8 months, and Sig Fig Tutor every 49 months. Most recently, EMD PTE was updated on October 21, 2026 and Sig Fig Tutor on October 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*