# Slyd.in vs Learn Japanese JLPT

The clearest difference is in-app purchases: Slyd.in at none against Learn Japanese JLPT's 1. Slyd.in also leads on ads (none vs shown). Learn Japanese JLPT's advantage is update cadence (every 3 days vs fortnightly) and device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. Learn Japanese JLPT sells 1 one-off in-app purchase. Slyd.in asks for nothing beyond the download.

Slyd.in ships an update fortnightly, Learn Japanese JLPT every 3 days. The most recent releases landed on November 7, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Slyd.in | Learn Japanese JLPT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (35 ratings)](https://appshunter.io/ios/app/slydin/id1591621036/reviews)** | — |
| Number of ratings | **35** | — |
| Positive reviews | 41.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | Free | — |
| Size | 135 MB | 27 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [RedEx Media LLC](https://appshunter.io/developer/1466649119) | [kin wah Cheng](https://appshunter.io/developer/1231824474) |

## What reviewers say

### Slyd.in

[App page](https://appshunter.io/ios/app/slydin/id1591621036)

Experience secure and private messaging designed exclusively for iOS devices. Communicate with confidence knowing your conversations are protected.

**Highlights:** Secure messaging, Private communication, iOS exclusive, End-to-end encryption (implied by 'secure'), User-friendly interface (implied by 'messaging')

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

**In-app purchases:** none


### Learn Japanese JLPT

[App page](https://appshunter.io/ios/app/learn-japanese-jlpt/id6757190863)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is Slyd.in free?

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

### Is Learn Japanese JLPT free?

Learn Japanese JLPT is free to download, with in-app purchases available.

### Do Slyd.in or Learn Japanese JLPT have ads?

Learn Japanese JLPT shows ads; Slyd.in does not.

### Which is updated more often, Slyd.in or Learn Japanese JLPT?

Slyd.in ships an update fortnightly, and Learn Japanese JLPT every 3 days. Most recently, Slyd.in was updated on November 7, 2026 and Learn Japanese JLPT on November 1, 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.*