# OnePile vs BookMay

The clearest difference is update cadence: BookMay at every 2 days against OnePile's every 2 months. OnePile's advantage is iOS requirement (15.5 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OnePile ships an update every 2 months, BookMay every 2 days. The most recent releases landed on October 2, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | OnePile | BookMay |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 12.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 170 MB | 9 MB |
| Requires iOS | **15.5** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Onepile Tech Limited](https://appshunter.io/developer/1698291545) | [KitVa Limited](https://appshunter.io/developer/6784130432) |

## What reviewers say

### OnePile

[App page](https://appshunter.io/ios/app/onepile/id6451439146)

Discover nearby book-swapping locations on a map and reserve books online. Collect or donate books at designated machines to earn environmental points and contribute to a low-carbon lifestyle.

**Highlights:** Map view of book swap points, Online book reservation, Book donation and collection, Environmental footprint tracking, Low-carbon lifestyle support

**Features:** macOS Compatibility

**In-app purchases:** none


### BookMay

[App page](https://appshunter.io/ios/app/bookmay/id6784130430)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OnePile free?

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

### Is BookMay free?

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

### Do OnePile or BookMay have ads?

Neither OnePile nor BookMay shows ads.

### Which is updated more often, OnePile or BookMay?

OnePile ships an update every 2 months, and BookMay every 2 days. Most recently, OnePile was updated on October 2, 2026 and BookMay on October 17, 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.*