# Optimem vs ListLang

The clearest difference is in-app purchases: Optimem at none against ListLang's 2. ListLang's advantage is review sentiment (89% vs 80%) and iOS requirement (12.0 vs 16.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. ListLang sells 2 in-app purchases, starting at $12.99 per month. Optimem asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Optimem against 4.6 for ListLang. Both are backed by a comparable volume of ratings — 30 and 38 respectively. Written reviews are what separate them: 80% of Optimem's written reviews are positive against 89% of ListLang's.

Optimem ships an update monthly, ListLang every 3 weeks. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Optimem | ListLang |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (30 ratings)](https://appshunter.io/ios/app/optimem-smart-flashcards/id1574383108/reviews)** | [4.6 (38 ratings)](https://appshunter.io/ios/app/listlang-languages-to-fluency/id1640739764/reviews) |
| Number of ratings | 30 | **38** |
| Positive reviews | 80.0% of reviews | **88.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | **Free** | Freemium |
| Size | 54 MB | 78 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Organic Software LLC](https://appshunter.io/developer/1574383110) | [Klavena LLC](https://appshunter.io/developer/1744186675) |

## What reviewers say

### Optimem

[App page](https://appshunter.io/ios/app/optimem-smart-flashcards/id1574383108)

Master any subject quickly with science-backed flashcards. Learn in short, engaging sessions using spaced repetition and multimedia support. Track your progress and customize your study experience with a simple, distraction-free interface.

**Highlights:** Bite-sized learning sessions, Spaced repetition system, Multimedia flashcard support, Progress tracking and stats, Customizable study settings, Dark mode, Content creation and sharing

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

**In-app purchases:** none


### ListLang

[App page](https://appshunter.io/ios/app/listlang-languages-to-fluency/id1640739764)

Master languages by focusing on the most frequent words in context. This app helps intermediate learners overcome plateaus with smart vocabulary acquisition and progress tracking. Engage with a global community and achieve fluency through effective, context-based learning.

**Highlights:** Learn 20+ languages, Focus on high-frequency words, Context-based vocabulary acquisition, Overcome intermediate plateaus, Progress tracking and statistics, Global community leaderboards, Free language courses

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ListLang Premium | $12.99 | per month |
| ListLang Premium | $99.99 | per year |


## Frequently asked questions

### Is Optimem free?

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

### Is ListLang free?

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

### Which has better reviews, Optimem or ListLang?

Optimem is rated higher. Optimem averages 4.7 out of 5 from 30 ratings, while ListLang averages 4.6 from 38 ratings.

### Do Optimem or ListLang have ads?

Neither Optimem nor ListLang shows ads.

### Which is updated more often, Optimem or ListLang?

Optimem ships an update monthly, and ListLang every 3 weeks. Most recently, Optimem was updated on October 20, 2026 and ListLang on October 24, 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.*