# Otum vs Lokia

The clearest difference is ads: Otum at none against Lokia's shown. Lokia's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Otum sells 1 one-off in-app purchase and Lokia sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Otum ships an update every 5 days, Lokia every 6 days. The most recent releases landed on October 16, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Otum | Lokia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (2 ratings)](https://appshunter.io/ios/app/lokia-comprehensible-input/id6797521787/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 6 days |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 63 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [He LiNien](https://appshunter.io/developer/6776889501) | [LOUIS AUGUSTE FRANCOIS JARRIER](https://appshunter.io/developer/6797522029) |

## What reviewers say

### Otum

[App page](https://appshunter.io/ios/app/otum/id6790628529)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Unlock · One-Time Buy | $14.99 | one-time |


### Lokia

[App page](https://appshunter.io/ios/app/lokia-comprehensible-input/id6797521787)

Learn languages naturally by watching videos. Tap on words in subtitles to understand their meaning in context, save new vocabulary, and review it with spaced repetition. Discover content tailored to your interests and track your learning progress.

**Highlights:** Learn through real-world video content, Tap to understand words in context, Build and save personalized vocabulary, Spaced repetition for long-term retention, Content tailored to interests and level, Track learning progress with flashcards

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lokia Premium | $9.99 | per month |
| Lokia Premium | $59.99 | per year |


## Frequently asked questions

### Is Otum free?

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

### Is Lokia free?

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

### Do Otum or Lokia have ads?

Lokia shows ads; Otum does not.

### Which is updated more often, Otum or Lokia?

Otum ships an update every 5 days, and Lokia every 6 days. Most recently, Otum was updated on October 16, 2026 and Lokia 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.*