# Voculus vs GrammarLite

The clearest difference is update cadence: GrammarLite at every 2 weeks against Voculus's every 7 months. Voculus's advantage is iOS requirement (11.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Voculus ships an update every 7 months, GrammarLite every 2 weeks. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Voculus | GrammarLite |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 15 MB | 17 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Prof. Dr. Guido Nottbusch](https://appshunter.io/developer/1531852588) | [Serhii Ptitsyn](https://appshunter.io/developer/1750028831) |

## What reviewers say

### Voculus

[App page](https://appshunter.io/ios/app/voculus/id1531852586)

This app synchronizes audiobooks with e-books, allowing users to read along as they listen. Currently in a pilot phase at select schools, it offers a unique way to engage with educational content.

**Highlights:** ePub3 audio-eBook reader, Synchronized audio and text, Pilot phase at schools, Contact for interest

**Features:** macOS Compatibility

**In-app purchases:** none


### GrammarLite

[App page](https://appshunter.io/ios/app/grammarlite-german-grammar/id6503707718)

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

**In-app purchases:** none


## Frequently asked questions

### Is Voculus free?

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

### Is GrammarLite free?

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

### Do Voculus or GrammarLite have ads?

Neither Voculus nor GrammarLite shows ads.

### Which is updated more often, Voculus or GrammarLite?

Voculus ships an update every 7 months, and GrammarLite every 2 weeks. Most recently, Voculus was updated on November 3, 2026 and GrammarLite on November 8, 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.*