# PubReader vs SpacerMint

The clearest difference is rating: SpacerMint at 5.0 against PubReader's 2.8. SpacerMint also leads on review sentiment (100% vs 67%) and update cadence (every 5 days vs every 2 months). PubReader's advantage is in-app purchases (none vs 2). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. SpacerMint sells 2 in-app purchases, starting at $1.99 per month. PubReader asks for nothing beyond the download.

SpacerMint holds the better App Store score, 5.0 against 2.8. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews point the same way: 67% of PubReader's written reviews are positive against 100% of SpacerMint's.

PubReader ships an update every 2 months, SpacerMint every 5 days. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | PubReader | SpacerMint |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (4 ratings)](https://appshunter.io/ios/app/pubreader/id1250557252/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/spacermint/id6759549773/reviews)** |
| Number of ratings | **4** | 3 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | **Free** | Freemium |
| Size | 67 MB | 20 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PubCoder](https://appshunter.io/developer/918409960) | [Eugene Ohu](https://appshunter.io/developer/1844487525) |

## What reviewers say

### PubReader

[App page](https://appshunter.io/ios/app/pubreader/id1250557252)

This app allows you to live preview interactive publications created with its companion desktop software. You can also distribute your XPUB publications for free to friends, customers, or colleagues without needing app store accounts.

**Highlights:** Live preview of publications, Distribute XPUB content for free, Supports EPUB and native app formats, No developer/app store accounts needed, Share via email or file sharing services

**In-app purchases:** none


### SpacerMint

[App page](https://appshunter.io/ios/app/spacermint/id6759549773)

This app helps you reclaim storage space on your iPhone by identifying and cleaning up duplicate, similar, and large files. It offers smart detection for photos, screenshots, videos, and messaging media, with all processing done on your device for privacy.

**Highlights:** Smart duplicate photo detection, Similar photo finder, Screenshot cleanup, Large file identification, Video compression, Messaging media cleanup, Storage insights and forecasting

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |
| Premium Yearly | $14.99 | per year |


## Frequently asked questions

### Is PubReader free?

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

### Is SpacerMint free?

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

### Which has better reviews, PubReader or SpacerMint?

SpacerMint is rated higher. PubReader averages 2.8 out of 5 from 4 ratings, while SpacerMint averages 5.0 from 3 ratings.

### Do PubReader or SpacerMint have ads?

Neither PubReader nor SpacerMint shows ads.

### Which is updated more often, PubReader or SpacerMint?

PubReader ships an update every 2 months, and SpacerMint every 5 days. Most recently, PubReader was updated on October 5, 2026 and SpacerMint on October 3, 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.*