# Calculus 1

> Practical calculus problems with detailed solutions for university students. (iPhone/iPad app by developWay CJSC.)

- Source: https://appshunter.io/ios/app/calculus-1/id1014530044 (this page in markdown: same URL + `.md`)
- Developer: [developWay CJSC](https://appshunter.io/developer/419883414)
- Category: Education, Books
- Price: Free
- Rating: 4.24/5 from 21 App Store ratings · 13 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 18 MB
- Languages: English
- Released: 2015-07-09
- Data updated: 2026-09-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/calculus-1/id1014530044/reviews.md

## What is Calculus 1?

Doctor Math is really proud to introduce its first product, Calculus 1.
The concept is very simple. Doctor Math is sure that learning mathematics becomes very effective, if the students apply their learned theory by solving as many practical problems as possible.

Doctor Math Calculus 1 offers the students more than 280 practical problems. All solutions of problems and their detailed explanations are available as well. The problems cover different fields of mathematics enclosed in the syllabus of the first year calculus of most universities of the world. This app includes the following main topics:
- Real numbers, mathematical induction.
- Functions and limits.
- Differential calculus.
- Application of derivative (Taylor series, extreme value problems, Newton’s Method).
- Integral calculus.
- Application of Integral (Volumes, arc length, area of surface revolution).
- Infinite sequences and series (limits and convergence).

These 7 sections of Calculus 1 are divided into several subsections. Each subsection contains 7 problems. The complexity of problems is increasing with the number of the problem in every subsection. The students have the possibility to solve the problems themselves and compare the results with the answers provided by Doctor Math. If difficulties occur during the solving process or if the answers do not match, then the students can simply click the ”solution” button and see the complete solution with all necessary explanations. Moreover, Doctor
Math includes a button called ”What Should I Know”. The page under this button contains a brief summary of definitions and theorems as well as formulas necessary for solving the problems.
Through the feedback button Doctor Math is wishing to stay in everyday contact with all users. Any remark or question is welcome.

Here is the best part - Doctor Math Calculus1 is completely free.
To learn more about Doctor Math, please visit:
www.doctor-math.com

## Key features

- 280+ practical calculus problems
- Detailed solutions and explanations
- Covers university first-year calculus topics
- Increasing problem complexity
- Summary of definitions and theorems
- Feedback feature for user contact

## Recent user reviews (10 of 13)

All indexed reviews: https://appshunter.io/ios/app/calculus-1/id1014530044/reviews.md

### 5/5 — Great practice while at lunch

*2026-03-15, version 1.2*

I only hope we could write on the question page.  It’s free, no ads.  Better than doomscrolling.

### 5/5 — Incredible

*2023-07-18, version 1.2*

Extraordinary

### 5/5 — This app is GOOD

*2022-12-27, version 1.2*

This is the best app for calculus ever and it is so easy to use and learn how to do calculus

### 5/5 — Just started using but seems pretty good

*2022-10-13, version 1.2*

5 stars for useful completely free product.  Thankyou! Wanting to go back to uni and need to revise some basic mathematics knowledge and the discipline of problem solving. Great to have these solutions at hand. Not really set up for teaching yourself from scratch.

### 4/5 — HELP!!

*2022-10-05, version 1.2*

App is usually great, but is force closing by itself lately. It doesn’t seem like there’s an update available. Is there something that can be done? Thank you!

### 2/5 — 1-1 Practice problem 5 answer is wrong

*2021-02-16, version 1.2*

48510/14700 is 33/10 not 36/10 thus the answer is wrong.

### 1/5 — Nice App but...

*2021-01-31*

This is a good app. However, the explanations need to be a bit more towards beginners and need to be understood by beginners. Explain the notation properly and let the solutions be more in-depth

### 5/5 — In depth practical course

*2020-06-28, version 1.2*

It almost covers all the core topics and gives you great start as a fresh student in your uni study

Many thanks for the excellent work

### 5/5 — Can you fix the mistake, please?

*2019-07-31, version 1.2*

It’s amazing! Great for practice and stuff.

(However, there is a mistake! In 
Numbers -> Rational Numbers -> Problem 5,
There is a mistake in step 3-4!

You see, 4851/100 * 10/147 is actually 33/10, not 36/10.
Therefore the solution is actually -100, not -115.)

### 5/5 — Amazing app

*2015-12-10, version 1.2*

I really like that they give examples and solutions that awesome and it's very helpful in terms of actually finding the solutions and they explain the lessons 
I really really really like this app thank you

## Frequently asked questions about Calculus 1

### What topics are covered in Calculus 1?

Calculus 1 covers real numbers, mathematical induction, functions, limits, differential calculus, applications of derivatives, integral calculus, applications of integrals, and infinite sequences and series. These topics align with the syllabus of first-year calculus in most universities worldwide.

### How many problems are available in Calculus 1?

Calculus 1 offers over 280 practical problems. Each of the 7 main sections is divided into subsections, with each subsection containing 7 problems of increasing complexity.

### Can I see the solutions to the problems in Calculus 1?

Yes, all problems in Calculus 1 come with detailed explanations and solutions. If you encounter difficulties or your answer doesn't match, you can click the 'solution' button to view the complete step-by-step solution.

### Does Calculus 1 have ads?

No, Calculus 1 is completely free and does not contain any advertisements.

### What is the 'What Should I Know' button in Calculus 1?

The 'What Should I Know' button in Calculus 1 provides a concise summary of essential definitions, theorems, and formulas needed to solve the practice problems. It serves as a quick reference guide for users.

### How often is Calculus 1 updated?

Calculus 1 was last updated on July 18, 2015, to version 1.2. The initial release date was July 9, 2015. Future updates may be released based on user feedback and developer plans.

### What devices is Calculus 1 available on?

Calculus 1 is available on iPhone, iPad, and iPod. It is suitable for users aged 4 and above.

### How can I provide feedback for Calculus 1?

You can provide feedback for Calculus 1 through the dedicated feedback button within the app. The developers welcome any remarks or questions to improve the user experience.

## Version history (last 2 releases)

### 1.2 — 2015-07-18

This app has been updated by Apple to display the Apple Watch app icon.

App rating is available.

### 1.1 — 2015-07-08

No release notes.

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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 2026-09-10.*
