# E Numbers Guide vs Learn C# Programming Offline

The clearest difference is price: E Numbers Guide at Free against Learn C# Programming Offline's $2.99. E Numbers Guide also leads on update cadence (fortnightly vs every 2 months) and iOS requirement (15.0 vs 17). Learn C# Programming Offline's advantage is in-app purchases (none vs 4) and ads (none vs shown). On device support there is nothing between them.

E Numbers Guide is free to download; Learn C# Programming Offline costs $2.99 up front. E Numbers Guide sells 4 in-app purchases, starting at $1.99 per month. Learn C# Programming Offline asks for nothing beyond the download.

E Numbers Guide ships an update fortnightly, Learn C# Programming Offline every 2 months. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | E Numbers Guide | Learn C# Programming Offline |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 2 months |
| Size | 228 MB | 183 MB |
| Requires iOS | **15.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Olga Ivanova](https://appshunter.io/developer/1733570435) | [Shahbaz Khan](https://appshunter.io/developer/1479963383) |

## What reviewers say

### E Numbers Guide

[App page](https://appshunter.io/ios/app/e-numbers-guide/id6478639811)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| en-au | $1.99 | per month |
| en-au | $1.99 | one-time |
| en-au | $5.99 | one-time |
| en-au | $59.99 | one-time |


### Learn C# Programming Offline

[App page](https://appshunter.io/ios/app/learn-c-programming-offline/id6754010819)

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

**In-app purchases:** none


## Frequently asked questions

### Is E Numbers Guide free?

E Numbers Guide is free to download, with in-app purchases available.

### Is Learn C# Programming Offline free?

Learn C# Programming Offline costs $2.99, with no in-app purchases.

### Do E Numbers Guide or Learn C# Programming Offline have ads?

E Numbers Guide shows ads; Learn C# Programming Offline does not.

### Which is updated more often, E Numbers Guide or Learn C# Programming Offline?

E Numbers Guide ships an update fortnightly, and Learn C# Programming Offline every 2 months. Most recently, E Numbers Guide was updated on November 8, 2026 and Learn C# Programming Offline on November 5, 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.*