# PaperDue vs Studva

The clearest difference is in-app purchases: Studva at none against PaperDue's 1. Studva also leads on iOS requirement (16.4 vs 18.6). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. PaperDue sells 1 one-off in-app purchase. Studva asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for PaperDue against 5.0 for Studva. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | PaperDue | Studva |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/paperdue-deadline-tracker/id6761820921/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/studva/id6802291186/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Free | Free |
| Size | 3 MB | 83 MB |
| Requires iOS | 18.6 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [梓豪 朱](https://appshunter.io/developer/1891542786) | [Geant Luka](https://appshunter.io/developer/6802291398) |

## What reviewers say

### PaperDue

[App page](https://appshunter.io/ios/app/paperdue-deadline-tracker/id6761820921)

Never miss a crucial submission deadline for AI research conferences. This app provides live countdowns, smart notifications, and conference rankings to help academics stay organized and focused on their work.

**Highlights:** Live countdown tracker for hundreds of conferences, Smart reminder notifications, CORE & CCF conference rankings, Dynamic Island countdown ticker, Home & Lock Screen widgets, Timeline & calendar view, Multi-timezone support

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PaperDue Pro | $1.99 | one-time |


### Studva

[App page](https://appshunter.io/ios/app/studva/id6802291186)

Transform focus hours into measurable, shareable achievements. This app turns study or work sessions into verified activities, complete with leaderboards and community support. Track progress, block distractions, and discover your peak productivity times.

**Highlights:** Verified focus sessions with start/end photos, Distraction blocking by pausing apps, Personalized productivity coaching, Social feed with friend interactions, Location-based leaderboards, Exportable session data (CSV)

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

**In-app purchases:** none


## Frequently asked questions

### Is PaperDue free?

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

### Is Studva free?

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

### Which has better reviews, PaperDue or Studva?

PaperDue and Studva are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do PaperDue or Studva have ads?

Neither PaperDue nor Studva shows ads.

### Which is updated more often, PaperDue or Studva?

PaperDue ships an update weekly, and Studva weekly. Most recently, PaperDue was updated on October 5, 2026 and Studva on October 12, 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.*