# Interslavic Flashcards vs PastViewer

The clearest difference is in-app purchases: Interslavic Flashcards at none against PastViewer's 3. Interslavic Flashcards also leads on update cadence (every 4 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PastViewer sells 3 one-off in-app purchases. Interslavic Flashcards asks for nothing beyond the download.

Interslavic Flashcards ships an update every 4 days, PastViewer monthly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Interslavic Flashcards | PastViewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Monthly |
| Size | 77 MB | 57 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Anatolii Utkin](https://appshunter.io/developer/1843347362) | [Dmitry Vorobyev](https://appshunter.io/developer/1888156177) |

## What reviewers say

### Interslavic Flashcards

[App page](https://appshunter.io/ios/app/interslavic-flashcards/id6753289494)

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

**In-app purchases:** none


### PastViewer

[App page](https://appshunter.io/ios/app/pastviewer/id6761183383)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium tip | $4.99 | one-time |
| Large Tip | $9.99 | one-time |


## Frequently asked questions

### Is Interslavic Flashcards free?

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

### Is PastViewer free?

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

### Do Interslavic Flashcards or PastViewer have ads?

Neither Interslavic Flashcards nor PastViewer shows ads.

### Which is updated more often, Interslavic Flashcards or PastViewer?

Interslavic Flashcards ships an update every 4 days, and PastViewer monthly. Most recently, Interslavic Flashcards was updated on October 28, 2026 and PastViewer on October 24, 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.*