# Prairial vs Interslavic

The clearest difference is price: Interslavic at Free against Prairial's $0.99. Interslavic also leads on rating (4.8 vs 4.5). Prairial's advantage is in-app purchases (none vs 1) and update cadence (every 6 months vs every 13 months). On review sentiment, ratings volume, ads and device support there is nothing between them.

Interslavic is free to download; Prairial costs $0.99 up front. Interslavic sells 1 one-off in-app purchase. Prairial asks for nothing beyond the download.

Interslavic holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Prairial ships an update every 6 months, Interslavic every 13 months. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Prairial | Interslavic |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.5 (4 ratings)](https://appshunter.io/ios/app/prairial/id697920083/reviews) | **[4.8 (5 ratings)](https://appshunter.io/ios/app/interslavic/id6743675845/reviews)** |
| Number of ratings | 4 | **5** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 13 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 4 MB | 15 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Mac |
| Age rating | 4+ | 12+ |
| Developer | [Laurent Rodier](https://appshunter.io/developer/697920086) | [Dmitry Kanunnikoff](https://appshunter.io/developer/1449411291) |

## What reviewers say

### Prairial

[App page](https://appshunter.io/ios/app/prairial/id697920083)

This utility converts between the standard Gregorian calendar and the historical French Revolution calendar. It offers a widget for the current date in the Revolutionary era and an Apple Watch companion with dual display options, including decimal time.

**Highlights:** Gregorian to French Revolution calendar conversion, Today screen widget, Apple Watch companion app, Decimal time display, Standard image representation of months

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Interslavic

[App page](https://appshunter.io/ios/app/interslavic/id6743675845)

Explore an improvised language that bridges Slavic tongues. Access a dictionary of Interslavic words with translations, search functionality, and transliteration tools. Learn about the history and development of this unique linguistic project.

**Highlights:** Download and view Interslavic words, Translations into Slavic languages, Search and filter functionality, Add words to Favorites, Transliteration between Latin and Cyrillic, Detailed word information

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip | $0.99 | one-time |


## Frequently asked questions

### Is Prairial free?

Prairial costs $0.99, with no in-app purchases.

### Is Interslavic free?

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

### Which has better reviews, Prairial or Interslavic?

Interslavic is rated higher. Prairial averages 4.5 out of 5 from 4 ratings, while Interslavic averages 4.8 from 5 ratings.

### Do Prairial or Interslavic have ads?

Neither Prairial nor Interslavic shows ads.

### Which is updated more often, Prairial or Interslavic?

Prairial ships an update every 6 months, and Interslavic every 13 months. Most recently, Prairial was updated on November 6, 2026 and Interslavic on November 4, 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.*