# ITB Library vs Polar

The clearest difference is device support: ITB Library at 3 against Polar's —. Polar's advantage is iOS requirement (13.0 vs 15.6). On price and in-app purchases there is nothing between them.

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

## The numbers

| Metric | ITB Library | Polar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 19 months | — |
| Size | 74 MB | 70 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 9+ | 17+ |
| Developer | [INSTITUT TEKNOLOGI BANDUNG](https://appshunter.io/developer/1525327345) | [Krisna Eka Pratama](https://appshunter.io/developer/1714067938) |

## What reviewers say

### ITB Library

[App page](https://appshunter.io/ios/app/itb-library/id6443694765)

**Features:** macOS Compatibility

**In-app purchases:** none


### Polar

[App page](https://appshunter.io/ios/app/polar/id6470709508)

**In-app purchases:** none


## Frequently asked questions

### Is ITB Library free?

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

### Is Polar free?

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

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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.*