# Lock Lingo・Learn English Quick vs IQMATH

The clearest difference is in-app purchases: IQMATH at none against Lock Lingo・Learn English Quick's 3. IQMATH also leads on update cadence (every 2 weeks vs monthly) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Lock Lingo・Learn English Quick sells 3 in-app purchases, starting at $1.99 per month. IQMATH asks for nothing beyond the download.

Lock Lingo・Learn English Quick ships an update monthly, IQMATH every 2 weeks. The most recent releases landed on November 5, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Lock Lingo・Learn English Quick | IQMATH |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/lock-lingolearn-english-quick/id6745026096/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 49 MB | 44 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tarasov Mobile](https://appshunter.io/developer/547656503) | [UDEA](https://appshunter.io/developer/1724165965) |

## What reviewers say

### Lock Lingo・Learn English Quick

[App page](https://appshunter.io/ios/app/lock-lingolearn-english-quick/id6745026096)

Learn English effortlessly with words and phrases appearing directly on your iPhone lock screen. This app makes learning accessible and time-efficient, integrating study into your daily phone usage without complicated steps.

**Highlights:** Lock screen learning, On-the-go study, Effortless word learning, Accessible interface, Time-saving

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LockLingo Monthly | $1.99 | per month |
| LockLingo Yearly | $9.99 | per year |
| LockLingo Lifetime License | $22.99 | one-time |


### IQMATH

[App page](https://appshunter.io/ios/app/iqmath/id6753702778)

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

**In-app purchases:** none


## Frequently asked questions

### Is Lock Lingo・Learn English Quick free?

Lock Lingo・Learn English Quick is free to download, with in-app purchases available.

### Is IQMATH free?

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

### Do Lock Lingo・Learn English Quick or IQMATH have ads?

Neither Lock Lingo・Learn English Quick nor IQMATH shows ads.

### Which is updated more often, Lock Lingo・Learn English Quick or IQMATH?

Lock Lingo・Learn English Quick ships an update monthly, and IQMATH every 2 weeks. Most recently, Lock Lingo・Learn English Quick was updated on November 5, 2026 and IQMATH on October 28, 2026.

---

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