# ShelfPulse vs Ems Response Tracker 2

The clearest difference is in-app purchases: Ems Response Tracker 2 at none against ShelfPulse's 2. Ems Response Tracker 2 also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.5). ShelfPulse's advantage is update cadence (every 6 days vs monthly). On price and ads there is nothing between them.

Both are free to download. ShelfPulse sells 2 in-app purchases, starting at $0.99 per month. Ems Response Tracker 2 asks for nothing beyond the download.

ShelfPulse ships an update every 6 days, Ems Response Tracker 2 monthly. The most recent releases landed on September 20, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | ShelfPulse | Ems Response Tracker 2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (9 ratings)](https://appshunter.io/ios/app/shelfpulse/id6754263899/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Monthly |
| Monetization | Freemium | — |
| Size | 5 MB | 25 MB |
| Requires iOS | 18.5 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Eric Randall](https://appshunter.io/developer/1807554805) | [Francois Marais](https://appshunter.io/developer/1895170301) |

## What reviewers say

### ShelfPulse

[App page](https://appshunter.io/ios/app/shelfpulse/id6754263899)

Monitor your Audiobookshelf server with real-time dashboards, deep listening analytics, and library insights. Manage users, view beautiful home screen widgets, and gain personal or administrative perspectives on your audiobook collection. Enjoy a privacy-first experience with direct server connection.

**Highlights:** Real-time session monitoring, Deep listening analytics, Library and server insights, User management, Home screen widgets, Direct server connection

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ShelfPulse Monthly | $0.99 | per month |
| Full Access | $9.99 | one-time |


### Ems Response Tracker 2

[App page](https://appshunter.io/ios/app/ems-response-tracker-2/id6763120971)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ShelfPulse free?

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

### Is Ems Response Tracker 2 free?

Ems Response Tracker 2 is free to download, with no in-app purchases.

### Do ShelfPulse or Ems Response Tracker 2 have ads?

Neither ShelfPulse nor Ems Response Tracker 2 shows ads.

### Which is updated more often, ShelfPulse or Ems Response Tracker 2?

ShelfPulse ships an update every 6 days, and Ems Response Tracker 2 monthly. Most recently, ShelfPulse was updated on September 20, 2026 and Ems Response Tracker 2 on September 16, 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.*