# Vulpe vs PaperCrush

The clearest difference is in-app purchases: PaperCrush at none against Vulpe's 4. PaperCrush also leads on update cadence (daily vs every 2 weeks). Vulpe's advantage is review sentiment (95% vs 67%) and iOS requirement (15.0 vs 17). On price, ads and device support there is nothing between them.

Both are free to download. Vulpe sells 4 in-app purchases, starting at $3.99 per month. PaperCrush asks for nothing beyond the download.

Vulpe ships an update every 2 weeks, PaperCrush daily. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Vulpe | PaperCrush |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (4 ratings)](https://appshunter.io/ios/app/vulpe-study-with-a-plan/id6443739008/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | **95.5% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 187 MB | 13 MB |
| Requires iOS | **15.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [UniLink Inc.](https://appshunter.io/developer/1100530980) | [Naoki Takahashi](https://appshunter.io/developer/1713880270) |

## What reviewers say

### Vulpe

[App page](https://appshunter.io/ios/app/vulpe-study-with-a-plan/id6443739008)

This app helps you manage your reading goals by breaking down large books into daily page targets. It visualizes your progress, alerting you if you're ahead or behind schedule. Log your daily study sessions to stay on track and achieve your academic objectives.

**Highlights:** Set book completion dates, Calculate daily page goals, Log daily study progress, Visualize progress ahead/behind schedule, Receive progress notifications, Archive completed goals

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vulpe Premium Monthly | $3.99 | per month |
| Vulpe Premium Annual | $12.99 | per year |
| Vulpe Premium Yearly | $39.99 | per year |
| Vulpe Premium Outright | $29.99 | one-time |


### PaperCrush

[App page](https://appshunter.io/ios/app/papercrush/id6745439518)

Discover and organize academic papers with a swipe-based interface. AI translation helps overcome language barriers, while trending sections highlight popular research. Tailor your feed to specific academic categories.

**Highlights:** Swipe interface for paper discovery, AI translation of titles and abstracts, Organize liked papers, View trending research, Detailed paper view with LaTeX support, Select custom academic categories

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

**In-app purchases:** none


## Frequently asked questions

### Is Vulpe free?

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

### Is PaperCrush free?

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

### Do Vulpe or PaperCrush have ads?

Both Vulpe and PaperCrush show ads.

### Which is updated more often, Vulpe or PaperCrush?

Vulpe ships an update every 2 weeks, and PaperCrush daily. Most recently, Vulpe was updated on October 25, 2026 and PaperCrush on October 7, 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.*