# Keepy vs Rectoly for Zotero

The clearest difference is update cadence: Rectoly for Zotero at daily against Keepy's every 5 days. Keepy's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Keepy sells 2 in-app purchases, starting at $3.99 per month and Rectoly for Zotero sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Keepy ships an update every 5 days, Rectoly for Zotero daily. The most recent releases landed on October 29, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Keepy | Rectoly for Zotero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rectoly-for-zotero/id6803044396/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Daily** |
| Monetization | — | Free with in-app purchases |
| Size | 35 MB | 53 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [OSLOUX](https://appshunter.io/developer/6795494342) | [Takaki Takemura](https://appshunter.io/developer/6793454900) |

## What reviewers say

### Keepy

[App page](https://appshunter.io/ios/app/keepy-smart-reminder/id6795494340)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Keepy Premium Monthly | $3.99 | per month |
| Keepy Premium Yearly | $34.99 | per year |


### Rectoly for Zotero

[App page](https://appshunter.io/ios/app/rectoly-for-zotero/id6803044396)

This research-focused PDF reader enhances the Zotero experience by allowing seamless reading and annotation of academic papers on mobile and Mac devices. It offers features like reflowable text, on-device translation, and tools for organizing research themes and comparing papers.

**Highlights:** Reflowable text for easy reading, In-line annotation with Apple Pencil, On-device translation of papers, Read Aloud functionality, Split view for side-by-side comparison, Research theme organization, Cross-paper annotation search

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 14-day Trial | Free | one-time |
| Rectoly Pro (one-time) | $19.99 | one-time |


## Frequently asked questions

### Is Keepy free?

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

### Is Rectoly for Zotero free?

Rectoly for Zotero is free to download, with in-app purchases available.

### Do Keepy or Rectoly for Zotero have ads?

Neither Keepy nor Rectoly for Zotero shows ads.

### Which is updated more often, Keepy or Rectoly for Zotero?

Keepy ships an update every 5 days, and Rectoly for Zotero daily. Most recently, Keepy was updated on October 29, 2026 and Rectoly for Zotero on November 6, 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.*