# Vocabulary Builder by Knudge vs DAV_SADHAURA

The clearest difference is in-app purchases: DAV_SADHAURA at none against Vocabulary Builder by Knudge's 10. Vocabulary Builder by Knudge's advantage is update cadence (monthly vs every 20 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Vocabulary Builder by Knudge sells 10 in-app purchases, starting at $9.99 per month. DAV_SADHAURA asks for nothing beyond the download.

Vocabulary Builder by Knudge ships an update monthly, DAV_SADHAURA every 20 months. The most recent releases landed on October 29, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Vocabulary Builder by Knudge | DAV_SADHAURA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.7K ratings)](https://appshunter.io/ios/app/vocabulary-builder-by-knudge/id1358258808/reviews)** | — |
| Number of ratings | **1.7K** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 20 months |
| Monetization | Free with in-app purchases | — |
| Size | 93 MB | 10 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Knudge Technology Private Limited](https://appshunter.io/developer/1358258807) | [Abhay Walia](https://appshunter.io/developer/1618207952) |

## What reviewers say

### Vocabulary Builder by Knudge

[App page](https://appshunter.io/ios/app/vocabulary-builder-by-knudge/id1358258808)

Learn and improve English effectively through engaging courses and games. Build vocabulary, master idioms, phrasal verbs, and commonly confused words. Enhance reading, writing, and speaking skills with scientific algorithms and expert-curated content.

**Highlights:** Vocabulary builder courses (Easy, Intermediate, Advanced), Learn English idioms, Master phrasal verbs, Understand commonly confused words, Interactive vocabulary games, Improve reading, writing, and speaking skills, Grammar refinement games

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Knudge-English Vocabulary(Monthly) | $9.99 | per month |
| Quarterly Subscription | $19.99 | per 3 months |
| Knudge- English Vocabulary(Yearly) | $34.99 | per year |
| Ratio and Proportion | $0.99 | one-time |
| Proverbs | $0.99 | one-time |
| Pronouns | $0.99 | one-time |
| Lifetime Membership | $1.99 | one-time |
| Knudge.me Pro | $4.99 | one-time |
| Knudge Pro Lifetime Membership | $8.99 | one-time |
| Knudge Pro Lifetime Membership | $19.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 👍 Fun and engaging games
- 💡 Helpful for improving vocabulary and grammar
- 🚀 Efficient learning experience
- 👍 Visually appealing design

**What reviewers complain about**

- 🐛 Occasional bugs and crashes
- 💰 Paid subscription required for full access
- 🔒 Login issues
- 🐛 Compatibility problems on some devices

**Reported bugs**

- Prepositions mini course not working properly
- Vocabulary builder not displaying explanation pictures
- Quiz feature not advancing to next screen

**Requested features**

- More practice problems for math section
- Reset progress option for free users
- Pronunciation feature for words
- Support for more languages


### DAV_SADHAURA

[App page](https://appshunter.io/ios/app/dav-sadhaura/id6445853267)

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

**In-app purchases:** none


## Frequently asked questions

### Is Vocabulary Builder by Knudge free?

Vocabulary Builder by Knudge is free to download, with in-app purchases available.

### Is DAV_SADHAURA free?

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

### Do Vocabulary Builder by Knudge or DAV_SADHAURA have ads?

Neither Vocabulary Builder by Knudge nor DAV_SADHAURA shows ads.

### Which is updated more often, Vocabulary Builder by Knudge or DAV_SADHAURA?

Vocabulary Builder by Knudge ships an update monthly, and DAV_SADHAURA every 20 months. Most recently, Vocabulary Builder by Knudge was updated on October 29, 2026 and DAV_SADHAURA on October 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*