# Calculus Formulas vs ISGC

The clearest difference is in-app purchases: ISGC at none against Calculus Formulas's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Calculus Formulas sells 3 in-app purchases, starting at $4.99 per 7 days. ISGC asks for nothing beyond the download.

## The numbers

| Metric | Calculus Formulas | ISGC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/isgc/id6810459573/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Monetization | — | Free |
| Size | 48 MB | 54 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mobin Akhter](https://appshunter.io/developer/1812505286) | [Mohamed Ahmed Ahmed Mahmou](https://appshunter.io/developer/1840427589) |

## What reviewers say

### Calculus Formulas

[App page](https://appshunter.io/ios/app/calculus-formulas-calcref/id6761394165)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| CalcRef Yearly Premium | $44.99 | per year |
| CalcRef Premium Lifetime | $74.99 | one-time |


### ISGC

[App page](https://appshunter.io/ios/app/isgc/id6810459573)

This app connects students, faculty, and administration within a civil engineering institute. It offers features like grade checking, schedule management, attendance tracking, course material access, and digital student IDs. Faculty can manage attendance, input grades, and share documents, while administration can handle scheduling and student tracking.

**Highlights:** View grades and download transcripts, Up-to-date weekly schedules, Online absence tracking and justification, Access course documents, Digital student ID card, Submit and track internship reports, Directly submit claims to the registrar

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculus Formulas free?

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

### Is ISGC free?

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

### Do Calculus Formulas or ISGC have ads?

Neither Calculus Formulas nor ISGC shows ads.

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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.*