# SuperfastMath vs LockStudy

The clearest difference is in-app purchases: SuperfastMath at none against LockStudy's 2. SuperfastMath also leads on iOS requirement (12.0 vs 17.6). LockStudy's advantage is update cadence (monthly vs every 10 months). On price, ads and device support there is nothing between them.

Both are free to download. LockStudy sells 2 in-app purchases, starting at $1.99 per month. SuperfastMath asks for nothing beyond the download.

SuperfastMath ships an update every 10 months, LockStudy monthly. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | SuperfastMath | LockStudy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Monthly** |
| Size | 23 MB | 8 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dolina Thomson](https://appshunter.io/developer/989648117) | [Glanz Studio](https://appshunter.io/developer/1785357972) |

## What reviewers say

### SuperfastMath

[App page](https://appshunter.io/ios/app/superfastmath/id989648118)

**Features:** macOS Compatibility

**In-app purchases:** none


### LockStudy

[App page](https://appshunter.io/ios/app/lockstudy-built-for-focus/id6756006023)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LockStudy Pro Monthly | $1.99 | per month |
| LockStudy Pro Lifetime | $22.99 | one-time |


## Frequently asked questions

### Is SuperfastMath free?

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

### Is LockStudy free?

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

### Do SuperfastMath or LockStudy have ads?

Neither SuperfastMath nor LockStudy shows ads.

### Which is updated more often, SuperfastMath or LockStudy?

SuperfastMath ships an update every 10 months, and LockStudy monthly. Most recently, SuperfastMath was updated on October 11, 2026 and LockStudy on October 9, 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.*