# LingoBoost vs Skim

The clearest difference is rating: Skim at 5.0 against LingoBoost's 2.5. Skim also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 2 months). LingoBoost's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. LingoBoost sells 1 one-off in-app purchase and Skim sells 4 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Skim holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 4 and 3 respectively.

LingoBoost ships an update every 2 months, Skim every 2 weeks. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | LingoBoost | Skim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (4 ratings)](https://appshunter.io/ios/app/lingoboost/id996999002/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/skim-micro-learning-cards/id6764439998/reviews)** |
| Number of ratings | **4** | 3 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 37 MB | 10 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stefan Collette](https://appshunter.io/developer/641976775) | [DORUK SAVASAN](https://appshunter.io/developer/1895781498) |

## What reviewers say

### LingoBoost

[App page](https://appshunter.io/ios/app/lingoboost/id996999002)

This app helps users learn and practice foreign language vocabulary through various engaging methods. Create custom lists, mark difficult words, and utilize flashcards, memory games, multiple choice, and typing exercises for effective memorization and spelling practice.

**Highlights:** Custom vocabulary lists, Flashcards with audio, Memory game, Multiple choice quizzes, Typing practice, Favorite word marking, Offline functionality

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $0.99 | one-time |


### Skim

[App page](https://appshunter.io/ios/app/skim-micro-learning-cards/id6764439998)

Transform documents into bite-sized learning cards with AI. Choose from four learning modes, ask questions about terms, and track your progress. Ideal for students, researchers, and professionals.

**Highlights:** AI-generated learning cards, Multiple learning modes (Deep Understanding, ELI5, Memorize, Quick Review), Ask AI questions about document terms, Progress tracking (streak, mastery, accuracy), Supports PDF, Word, PowerPoint, text, and Markdown, No ads or data tracking

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $6.99 | per month |
| Ultra Monthly | $13.99 | per month |
| Pro Annual | $69.99 | per year |
| Ultra Annual | $139.99 | per year |


## Frequently asked questions

### Is LingoBoost free?

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

### Is Skim free?

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

### Which has better reviews, LingoBoost or Skim?

Skim is rated higher. LingoBoost averages 2.5 out of 5 from 4 ratings, while Skim averages 5.0 from 3 ratings.

### Do LingoBoost or Skim have ads?

LingoBoost shows ads; Skim does not.

### Which is updated more often, LingoBoost or Skim?

LingoBoost ships an update every 2 months, and Skim every 2 weeks. Most recently, LingoBoost was updated on October 2, 2026 and Skim on October 7, 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.*