# MEGA Subtraction 1 vs Words Keeper

The clearest difference is in-app purchases: Words Keeper at none against MEGA Subtraction 1's 10. Words Keeper also leads on update cadence (every 11 days vs every 2 months). MEGA Subtraction 1's advantage is iOS requirement (6.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. MEGA Subtraction 1 sells 10 one-off in-app purchases. Words Keeper asks for nothing beyond the download.

MEGA Subtraction 1 ships an update every 2 months, Words Keeper every 11 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | MEGA Subtraction 1 | Words Keeper |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 11 days** |
| Size | 42 MB | 20 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stas Gurevich](https://appshunter.io/developer/570553157) | [Aliaksandr Butrym](https://appshunter.io/developer/6779287111) |

## What reviewers say

### MEGA Subtraction 1

[App page](https://appshunter.io/ios/app/mega-subtraction-1-100-free/id898754237)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Settings | $0.99 | one-time |
| History | $0.99 | one-time |
| Collection 1 | $0.99 | one-time |
| Collection 2 | $0.99 | one-time |
| Collection 3 | $0.99 | one-time |
| Collection 4 | $0.99 | one-time |
| Collection 5 | $0.99 | one-time |
| Collection 6 | $0.99 | one-time |
| All collections | $3.99 | one-time |
| Mega Pack | $4.99 | one-time |


### Words Keeper

[App page](https://appshunter.io/ios/app/words-keeper/id6793219759)

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

**In-app purchases:** none


## Frequently asked questions

### Is MEGA Subtraction 1 free?

MEGA Subtraction 1 is free to download, with in-app purchases available.

### Is Words Keeper free?

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

### Do MEGA Subtraction 1 or Words Keeper have ads?

Neither MEGA Subtraction 1 nor Words Keeper shows ads.

### Which is updated more often, MEGA Subtraction 1 or Words Keeper?

MEGA Subtraction 1 ships an update every 2 months, and Words Keeper every 11 days. Most recently, MEGA Subtraction 1 was updated on October 26, 2026 and Words Keeper on October 25, 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.*