# Book Tracker vs PlotCatalyst Echo

Book Tracker and PlotCatalyst Echo are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Book Tracker sells 5 in-app purchases, starting at $2.99 per month and PlotCatalyst Echo sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Book Tracker ships an update every 8 days, PlotCatalyst Echo every 9 days. The most recent releases landed on July 23, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Book Tracker | PlotCatalyst Echo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 9 days |
| Size | 49 MB | 46 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Annika Reinecke](https://appshunter.io/developer/1819480810) | [RONALD LOUIS JONES JR](https://appshunter.io/developer/1889623537) |

## What reviewers say

### Book Tracker

[App page](https://appshunter.io/ios/app/book-tracker-booklio/id6758706112)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (1 month) | $2.99 | per month |
| Premium (1 month) | $2.99 | per month |
| Premium (1 year) | $14.99 | per year |
| Premium (1 year) | $24.99 | per year |
| Premium (1 year) | $24.99 | per year |


### PlotCatalyst Echo

[App page](https://appshunter.io/ios/app/plotcatalyst-echo/id6766238995)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PlotCatalyst Echo Monthly | $4.99 | per month |
| PlotCatalyst Echo Yearly | $29.99 | per year |


## Frequently asked questions

### Is Book Tracker free?

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

### Is PlotCatalyst Echo free?

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

### Do Book Tracker or PlotCatalyst Echo have ads?

Neither Book Tracker nor PlotCatalyst Echo shows ads.

### Which is updated more often, Book Tracker or PlotCatalyst Echo?

Book Tracker ships an update every 8 days, and PlotCatalyst Echo every 9 days. Most recently, Book Tracker was updated on July 23, 2026 and PlotCatalyst Echo on September 20, 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.*