# Maths Dictionary vs azVocab

The clearest difference is in-app purchases: Maths Dictionary at none against azVocab's 6. Maths Dictionary also leads on update cadence (weekly vs monthly). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. azVocab sells 6 in-app purchases, starting at $0.99 per 7 days. Maths Dictionary asks for nothing beyond the download.

Maths Dictionary ships an update weekly, azVocab monthly. The most recent releases landed on October 9, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Maths Dictionary | azVocab |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 120 MB | 86 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BLACASA VIETNAM COMPANY LIMITED](https://appshunter.io/developer/1408664620) | [CTH SOFT JSC](https://appshunter.io/developer/1776548745) |

## What reviewers say

### Maths Dictionary

[App page](https://appshunter.io/ios/app/maths-dictionary/id6467556525)

This app helps Vietnamese students learn English math terms with visual aids and examples. It's designed to supplement English math courses, making complex terminology more accessible and improving learning efficiency.

**Highlights:** English math terminology, Visual illustrations, Example explanations, Supports primary and secondary school levels, Aids in Cambridge English Math courses

**Features:** macOS Compatibility

**In-app purchases:** none


### azVocab

[App page](https://appshunter.io/ios/app/azvocab/id6737465506)

This AI-powered app enhances English vocabulary learning through spaced repetition and brain science insights. It offers curated lists, diverse exercises, detailed word information, and progress tracking for exam preparation and general learning.

**Highlights:** AI-powered vocabulary learning, Spaced repetition algorithms, Curated vocabulary lists, Diverse practice exercises, Detailed word information, Progress tracking reports

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO 1 Week | $0.99 | per 7 days |
| PRO 1 Month | $4.99 | per month |
| PRO 3 Months | $9.99 | per 3 months |
| PRO 6 Months | $14.99 | per 6 months |
| PRO 12 Months | $24.99 | per year |
| PRO Lifetime | $124.99 | one-time |


## Frequently asked questions

### Is Maths Dictionary free?

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

### Is azVocab free?

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

### Do Maths Dictionary or azVocab have ads?

Neither Maths Dictionary nor azVocab shows ads.

### Which is updated more often, Maths Dictionary or azVocab?

Maths Dictionary ships an update weekly, and azVocab monthly. Most recently, Maths Dictionary was updated on October 9, 2026 and azVocab on October 17, 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.*