# Num Trainer vs CapWords

The clearest difference is in-app purchases: Num Trainer at none against CapWords's 7. Num Trainer also leads on review sentiment (100% vs 71%) and rating (5.0 vs 4.7). CapWords's advantage is ratings volume (545 vs 2) and update cadence (every 5 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CapWords sells 6 in-app purchases, starting at $4.99 per month. Num Trainer asks for nothing beyond the download.

Num Trainer holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: CapWords has 545 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of Num Trainer's written reviews are positive against 71% of CapWords's.

Num Trainer ships an update every 3 weeks, CapWords every 5 days. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Num Trainer | CapWords |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/num-trainer/id1531055741/reviews)** | [4.7 (545 ratings)](https://appshunter.io/ios/app/capwords-ai-language-tutor/id6738896465/reviews) |
| Number of ratings | 2 | **545** |
| Positive reviews | **100.0% of reviews** | 71.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 235 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yang Wang](https://appshunter.io/developer/1531055743) | [HappyPlan Tech](https://appshunter.io/developer/1631297811) |

## What reviewers say

### Num Trainer

[App page](https://appshunter.io/ios/app/num-trainer/id1531055741)

This app offers quick, engaging number-based exercises to sharpen your mind. Improve focus, memory, and mental math skills with short training sessions that can be adjusted for difficulty.

**Highlights:** Improve reflection and focus, Enhance attention and memory, Develop mental math skills, Boost logic abilities, Multiple training modes, Adjustable difficulty levels

**In-app purchases:** none


### CapWords

[App page](https://appshunter.io/ios/app/capwords-ai-language-tutor/id6738896465)

Capture words from real life using your camera and instantly create smart flashcards. AI provides definitions with context, and a spaced repetition system helps you remember them. Perfect for students, travelers, and professionals looking to expand their vocabulary.

**Highlights:** AI text recognition from photos, AI-powered definitions with context, Photo-linked vocabulary flashcards, Intelligent spaced repetition review, Progress tracking, Offline word bank, Multiple language support

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium-Monthly-b | $4.99 | per month |
| Premium-Monthly | $5.99 | per month |
| Premium-Yearly | $19.99 | per year |
| Premium-Yearly | $29.99 | per year |
| Premium-Yearly-Promo | $29.99 | per year |
| Premium-Yearly-Promo-b | $29.99 | per year |

**What reviewers like**

- 👍 Simple and intuitive interface
- 🚀 Efficient flashcard creation
- 🔊 Helpful audio pronunciations
- 💡 Useful sample sentences

**What reviewers complain about**

- 🚫 Lack of support for certain languages (e.g., Hebrew, Arabic)
- 💡 Desire for dark mode option
- 🔒 Concerns about data privacy and Chinese ownership

**Reported bugs**

- Some website links not working properly

**Requested features**

- Add ability to import existing flashcards
- Integrate with other language learning apps
- Provide option to change native language
- Add home screen widgets
- Expand object description capabilities


## Frequently asked questions

### Is Num Trainer free?

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

### Is CapWords free?

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

### Which has better reviews, Num Trainer or CapWords?

Num Trainer is rated higher. Num Trainer averages 5.0 out of 5 from 2 ratings, while CapWords averages 4.7 from 545 ratings.

### Do Num Trainer or CapWords have ads?

Neither Num Trainer nor CapWords shows ads.

### Which is updated more often, Num Trainer or CapWords?

Num Trainer ships an update every 3 weeks, and CapWords every 5 days. Most recently, Num Trainer was updated on October 4, 2026 and CapWords on October 15, 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.*