# Maths Dictionary Offline vs HappyNote.App

The clearest difference is ads: HappyNote.App at none against Maths Dictionary Offline's shown. HappyNote.App also leads on update cadence (every 4 weeks vs every 19 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Maths Dictionary Offline sells 5 in-app purchases, starting at $1.99 per 7 days and HappyNote.App sells 1 in-app purchase, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

Maths Dictionary Offline ships an update every 19 months, HappyNote.App every 4 weeks. The most recent releases landed on October 4, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Maths Dictionary Offline | HappyNote.App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/maths-dictionary-offline/id1482727996/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 19 months | **Every 4 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 20 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Puju Dekivadiya](https://appshunter.io/developer/1289574712) | [Reto Adrian Kupler*](https://appshunter.io/developer/1787453381) |

## What reviewers say

### Maths Dictionary Offline

[App page](https://appshunter.io/ios/app/maths-dictionary-offline/id1482727996)

Access a comprehensive offline mathematics dictionary with thousands of definitions, formulas, and examples. Features include easy search, an adaptive interface, and a quiz mode to test your knowledge. Ideal for students and professors of all levels.

**Highlights:** Offline access to math terminology, Thousands of definitions and formulas, Easy search with auto-suggestion, Adaptive and attractive interface, Includes charts, graphs, and illustrations, Quiz mode for knowledge testing, Speech to text functionality

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro Plan | $1.99 | per 7 days |
| Monthly Pro Plan | $4.99 | per month |
| Yearly Pro Plan | $29.99 | per year |
| Remove Ads | $9.99 | one-time |
| Lifetime Access | $39.99 | one-time |


### HappyNote.App

[App page](https://appshunter.io/ios/app/happynoteapp/id6739954237)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cloud Sync 1 Year | $9.99 | per year |


## Frequently asked questions

### Is Maths Dictionary Offline free?

Maths Dictionary Offline is free to download, with in-app purchases available.

### Is HappyNote.App free?

HappyNote.App is free to download, with in-app purchases available.

### Do Maths Dictionary Offline or HappyNote.App have ads?

Maths Dictionary Offline shows ads; HappyNote.App does not.

### Which is updated more often, Maths Dictionary Offline or HappyNote.App?

Maths Dictionary Offline ships an update every 19 months, and HappyNote.App every 4 weeks. Most recently, Maths Dictionary Offline was updated on October 4, 2026 and HappyNote.App on September 28, 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.*