# Sig Fig Tutor

> Educational app for learning and practicing significant figures in scientific calculations. (iPhone/iPad app by Cheryl Montgomery.)

- Source: https://appshunter.io/ios/app/sig-fig-tutor/id1460598554 (this page in markdown: same URL + `.md`)
- Developer: [Cheryl Montgomery](https://appshunter.io/developer/611176285)
- Category: Education, Games
- Price: Free
- Rating: 4.81/5 from 31 App Store ratings · 22 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 54 MB
- Languages: English
- Released: 2019-04-25
- Data updated: 2026-06-11
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/sig-fig-tutor/id1460598554/reviews.md

## What is Sig Fig Tutor?

The Sig Fig Tutor is intended to help high school and college students learn how to use significant figures. You are given the option to Learn, Practice, or complete Challenges designed to help you: 
(1) Identify the number of sig figs in a measurement.
(2) Use sig figs to estimate a final answer after multiplying and/or dividing.
(3) Use the number of decimal places to estimate your final answer after adding and/or subtracting.
(4) Determine whether sig figs or decimal places should be used to report your final answer.

## Key features

- 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

## Recent user reviews (10 of 22)

All indexed reviews: https://appshunter.io/ios/app/sig-fig-tutor/id1460598554/reviews.md

### 5/5 — Just right

*2024-03-07, version 1.3*

Downloaded it, sat on the throne for 10 minutes doing the practice and I felt more confident that I knew the material than I did with pencil and paper the night before.

### 5/5 — Exactly what I needed

*2022-11-22, version 1.0*

After about 15 minutes, I feel so much more confident! Thanks

### 1/5 — None of the challenges work

*2021-07-09, version 1.0*

It appears this app is no longer supported.

### 5/5 — Great app!

*2019-09-07, version 1.0*

This app helped me remember how to correctly use significant figures. It was straightforward and easy to use.

### 5/5 — Awesome!

*2019-09-06, version 1.0*

It has been a whole summer since Chem 1 so this was a great reminder on the sig fig rules! Great app and easy to use!

### 5/5 — Enjoyed the helping hints!

*2019-09-06, version 1.0*

This app helped me form a deeper understanding of significant figures! The hints were helpful when I was stuck on where I was going wrong.

### 4/5 — Wow

*2019-09-05, version 1.0*

Even though this app is simple it is straightforward. It’s a perfect review for someone who needs a reminder about sig figs.

### 5/5 — Awesome

*2019-09-04, version 1.0*

Great creation helped a lot learning the sigs.

### 5/5 — Great app

*2019-09-04, version 1.0*

I was pretty comfortable with sig figs, but this app really helped to sure things up!

### 5/5 — Sig Figs are so simple now!

*2019-09-04, version 1.0*

I’ve always tripped up when it comes to sig figs and this app dumbed it down and explained to me very simply what I was doing wrong.

## Frequently asked questions about Sig Fig Tutor

### What does the Sig Fig Tutor app do?

The Sig Fig Tutor app is designed to help students learn and practice the rules of significant figures. It covers identifying significant figures in measurements and applying them to various arithmetic operations like multiplication, division, addition, and subtraction.

### What are the key features of the Sig Fig Tutor?

Key features include a learning module to understand significant figure rules, practice exercises for identifying sig figs, and challenges that test your ability to estimate final answers after calculations. It also guides you on whether to use sig figs or decimal places for reporting results.

### Is the Sig Fig Tutor app free to use?

Yes, the Sig Fig Tutor app is completely free to use. There are no in-app purchases or advertisements mentioned, making it a free educational resource.

### Who is the target audience for this app?

This app is intended for high school and college students who are studying science or mathematics and need to learn or improve their understanding of significant figures.

### How does the app help with calculations?

The app helps you practice estimating final answers after performing multiplication and division using significant figures. It also guides you on estimating final answers for addition and subtraction based on the number of decimal places.

## Version history (last 2 releases)

### 1.3 — 2023-04-26

We changed some images.

### 1.0 — 2019-04-25

No release notes.

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All apps by Cheryl Montgomery: https://appshunter.io/developer/611176285

## Related topics

[cheryl montgomery](https://appshunter.io/ios/topics/cheryl-montgomery) · [sig figs calculator](https://appshunter.io/ios/topics/sig-figs-calculator)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*