# p2i Network vs ZiNote

The clearest difference is in-app purchases: p2i Network at none against ZiNote's 5. ZiNote's advantage is iOS requirement (13.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ZiNote sells 5 in-app purchases, starting at $2.99 per month. p2i Network asks for nothing beyond the download.

p2i Network ships an update every 2 months, ZiNote every 6 weeks. The most recent releases landed on October 19, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | p2i Network | ZiNote |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zinote-research-paper-reader/id6756495932/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | — | Freemium |
| Size | 72 MB | 72 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Mesensei Oy](https://appshunter.io/developer/1213238777) | [小双 王](https://appshunter.io/developer/1860645573) |

## What reviewers say

### p2i Network

[App page](https://appshunter.io/ios/app/p2i-network/id1459755595)

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

**In-app purchases:** none


### ZiNote

[App page](https://appshunter.io/ios/app/zinote-research-paper-reader/id6756495932)

Access and organize academic papers from top research databases. Get personalized daily feeds, AI summaries, and journal tracking. Save, share, and export citations for your research library.

**Highlights:** Personalized daily research feed, Swipe to discover papers, AI summaries with offline translation, Journal tracking for 4,000+ publications, Save, share, and export citations, Organize papers in a personal library

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZiNote Pro Monthly | $2.99 | per month |
| Early Bird Pricing | $4.99 | per month |
| ZiNote Pro Yearly | $19.99 | per year |
| Early Bird Yearly | $49.99 | per year |
| ZiNote Pro Lifetime | $69.99 | one-time |


## Frequently asked questions

### Is p2i Network free?

p2i Network is free to download, with no in-app purchases.

### Is ZiNote free?

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

### Do p2i Network or ZiNote have ads?

Neither p2i Network nor ZiNote shows ads.

### Which is updated more often, p2i Network or ZiNote?

p2i Network ships an update every 2 months, and ZiNote every 6 weeks. Most recently, p2i Network was updated on October 19, 2026 and ZiNote on October 26, 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.*