# SonLerni vs CocoDrilo

SonLerni and CocoDrilo are too close to call on the numbers: across 10 compared parameters — price, rating, review sentiment and ratings volume among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. SonLerni sells 1 in-app purchase, starting at $59.99 per year and CocoDrilo sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for SonLerni against 5.0 for CocoDrilo. Both are backed by a comparable volume of ratings — 10 and 10 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

SonLerni ships an update every 10 days, CocoDrilo weekly. The most recent releases landed on November 8, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | SonLerni | CocoDrilo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (10 ratings)](https://appshunter.io/ios/app/sonlerni-language-immersion/id6751362941/reviews) | [5.0 (10 ratings)](https://appshunter.io/ios/app/cocodrilo-learn-spanish/id6762828187/reviews) |
| Number of ratings | 10 | 10 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 101 MB | 184 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Sonlerni LLC](https://appshunter.io/developer/1834763719) | [Ithaca Software LLC](https://appshunter.io/developer/1895031935) |

## What reviewers say

### SonLerni

[App page](https://appshunter.io/ios/app/sonlerni-language-immersion/id6751362941)

This app helps intermediate language learners improve fluency by listening to native podcasts with synced transcripts and AI-powered explanations. It offers phrase-by-phrase replay, customizable playback speed, and automatically generated flashcards for review.

**Highlights:** Native language podcasts, Synced transcripts, Phrase-by-phrase replay, AI tutor for explanations, Adjustable playback speed, Automatic flashcard creation, Progress tracking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Subscription | $59.99 | per year |


### CocoDrilo

[App page](https://appshunter.io/ios/app/cocodrilo-learn-spanish/id6762828187)

Master Spanish vocabulary and grammar with daily reviews and guided lessons. This app uses spaced repetition to help you remember what you learn, with over 6,300 words and 70 grammar drills. Practice pronunciation and track your progress.

**Highlights:** Daily vocabulary and grammar review, Spaced repetition learning system, 6,300+ words with contextual examples, 70 guided grammar drills, Pronunciation audio for words, Personalized vocabulary import (Pro)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CocoDrilo Pro Monthly | $4.99 | per month |
| CocoDrilo Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is SonLerni free?

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

### Is CocoDrilo free?

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

### Which has better reviews, SonLerni or CocoDrilo?

SonLerni and CocoDrilo are both rated 5.0 out of 5 on the App Store, from 10 and 10 ratings respectively.

### Do SonLerni or CocoDrilo have ads?

Both SonLerni and CocoDrilo show ads.

### Which is updated more often, SonLerni or CocoDrilo?

SonLerni ships an update every 10 days, and CocoDrilo weekly. Most recently, SonLerni was updated on November 8, 2026 and CocoDrilo on November 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.*