# bi.G.met. vs Reading Tracker Pro

The clearest difference is in-app purchases: bi.G.met. at none against Reading Tracker Pro's 3. bi.G.met. also leads on iOS requirement (12.0 vs 15.1). Reading Tracker Pro's advantage is update cadence (every 8 days vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Reading Tracker Pro sells 3 in-app purchases, starting at $3.99 per month. bi.G.met. asks for nothing beyond the download.

bi.G.met. ships an update every 4 months, Reading Tracker Pro every 8 days. The most recent releases landed on November 2, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | bi.G.met. | Reading Tracker Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bigmet/id1442086632/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 8 days** |
| Monetization | Free | — |
| Size | 26 MB | 109 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DOT BEYOND SRL](https://appshunter.io/developer/1384557126) | [JOSEPH G HORACKI](https://appshunter.io/developer/1842572012) |

## What reviewers say

### bi.G.met.

[App page](https://appshunter.io/ios/app/bigmet/id1442086632)

Access a vast metropolitan library catalog, search for books and digital materials, and manage your loans. Discover new titles, create personal bibliographies, and connect with other readers through social features.

**Highlights:** Search metropolitan library catalog, Scan barcodes for book information, Check item availability, Request, reserve, and renew loans, Save personal bibliographies, Suggest new purchases, Social sharing of library content

**In-app purchases:** none


### Reading Tracker Pro

[App page](https://appshunter.io/ios/app/reading-tracker-pro-book-log/id6753114223)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reading Tracker Pro | $3.99 | per month |
| Book Tracker Pro Subscription | $14.99 | per year |
| Reading Tracker Pro Lifetime | $149.00 | one-time |


## Frequently asked questions

### Is bi.G.met. free?

bi.G.met. is free to download, with no in-app purchases.

### Is Reading Tracker Pro free?

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

### Do bi.G.met. or Reading Tracker Pro have ads?

Neither bi.G.met. nor Reading Tracker Pro shows ads.

### Which is updated more often, bi.G.met. or Reading Tracker Pro?

bi.G.met. ships an update every 4 months, and Reading Tracker Pro every 8 days. Most recently, bi.G.met. was updated on November 2, 2026 and Reading Tracker Pro on September 15, 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.*