# CALF™ vs WordxWord

The clearest difference is ads: CALF™ at none against WordxWord's shown. CALF™ also leads on iOS requirement (11.0 vs 15.8.3). WordxWord's advantage is update cadence (fortnightly vs monthly). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CALF™ ships an update monthly, WordxWord fortnightly. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | CALF™ | WordxWord |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Size | 89 MB | 36 MB |
| Requires iOS | **11.0** | 15.8.3 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [NuVeda Learning Private Limited](https://appshunter.io/developer/1272718926) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### CALF™

[App page](https://appshunter.io/ios/app/calf/id1272718927)

**In-app purchases:** none


### WordxWord

[App page](https://appshunter.io/ios/app/wordxword/id6677017413)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CALF™ free?

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

### Is WordxWord free?

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

### Do CALF™ or WordxWord have ads?

WordxWord shows ads; CALF™ does not.

### Which is updated more often, CALF™ or WordxWord?

CALF™ ships an update monthly, and WordxWord fortnightly. Most recently, CALF™ was updated on October 3, 2026 and WordxWord 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.*