# Lock Learn vs Math Daily

Lock Learn and Math Daily are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Lock Learn sells 1 one-off in-app purchase and Math Daily sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Lock Learn | Math Daily |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/lock-learn-passive-learning/id6778682190/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 3 MB | 13 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [MaxQ Consulting Services LLC](https://appshunter.io/developer/1814475176) | [Nocte Ventures Ltd](https://appshunter.io/developer/1824906600) |

## What reviewers say

### Lock Learn

[App page](https://appshunter.io/ios/app/lock-learn-passive-learning/id6778682190)

Learn new vocabulary effortlessly by having words and definitions appear on your phone's lock screen every 10 minutes. Create custom word lists for any subject, from languages to professional terms, and tap to explore them further. Start with 20 free words and unlock unlimited access with a one-time purchase.

**Highlights:** Lock screen vocabulary widget, Customizable word lists by topic, Definitions and grammar labels, Tap to view word details, One-time purchase for unlimited words

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LockLearn | $1.99 | one-time |


### Math Daily

[App page](https://appshunter.io/ios/app/math-daily-brain-training/id6805246115)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro — Weekly | $0.99 | per 7 days |
| Pro — Yearly | $14.99 | per year |
| Pro — Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Lock Learn free?

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

### Is Math Daily free?

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

### Do Lock Learn or Math Daily have ads?

Neither Lock Learn nor Math Daily shows ads.

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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.*