# Write Devanagari Alphabet vs Sine

The clearest difference is price: Sine at Free against Write Devanagari Alphabet's $3.99. Sine also leads on update cadence (daily vs every 3 weeks) and chart position (#148 vs unranked). Write Devanagari Alphabet's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

Sine is free to download; Write Devanagari Alphabet costs $3.99 up front. Sine sells 3 in-app purchases, starting at $1.99 per month. Write Devanagari Alphabet asks for nothing beyond the download.

Write Devanagari Alphabet ships an update every 3 weeks, Sine daily. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Write Devanagari Alphabet | Sine |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[4.9 (393 ratings)](https://appshunter.io/ios/app/sine-ear-training-games/id6809608874/reviews)** |
| Number of ratings | — | **393** |
| Positive reviews | — | 93.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | — | Freemium |
| Best chart rank | — | **#148** |
| Size | 42 MB | 123 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jelmer van Nuss](https://appshunter.io/developer/1880809991) | [Ethan Liao](https://appshunter.io/developer/6809608877) |

## What reviewers say

### Write Devanagari Alphabet

[App page](https://appshunter.io/ios/app/write-devanagari-alphabet/id6760316074)

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

**In-app purchases:** none


### Sine

[App page](https://appshunter.io/ios/app/sine-ear-training-games/id6809608874)

**Currently charting:** #148 Top Free · Education (US App Store)

Develop your ear for music with interactive games and personalized practice. Learn to identify notes and chords through engaging exercises designed to improve your musical perception. Track your progress and earn badges as you master your auditory skills.

**Highlights:** Note and chord identification, Progressive difficulty levels, Interactive ear training games, Personalized practice sessions, Progress tracking and statistics, Badge collection system

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Encore Monthly | $1.99 | per month |
| Encore Yearly | $14.99 | per year |
| Encore Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Write Devanagari Alphabet free?

Write Devanagari Alphabet costs $3.99, with no in-app purchases.

### Is Sine free?

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

### Do Write Devanagari Alphabet or Sine have ads?

Neither Write Devanagari Alphabet nor Sine shows ads.

### Which is updated more often, Write Devanagari Alphabet or Sine?

Write Devanagari Alphabet ships an update every 3 weeks, and Sine daily. Most recently, Write Devanagari Alphabet was updated on October 24, 2026 and Sine on October 26, 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.*