# Bookil vs CRM Synthesis

The clearest difference is price: Bookil at Free against CRM Synthesis's $4.99. Bookil also leads on iOS requirement (18.4 vs 26.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Bookil is free to download; CRM Synthesis costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Bookil ships an update fortnightly, CRM Synthesis every 10 days. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Bookil | CRM Synthesis |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 10 days** |
| Size | 2 MB | 28 MB |
| Requires iOS | **18.4** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Labee LLC](https://appshunter.io/developer/1745874776) | [Outer Planet Labs LLC](https://appshunter.io/developer/304428595) |

## What reviewers say

### Bookil

[App page](https://appshunter.io/ios/app/bookil-pdf-library-and-reader/id6475175265)

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

**In-app purchases:** none


### CRM Synthesis

[App page](https://appshunter.io/ios/app/crm-synthesis/id6786048464)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bookil free?

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

### Is CRM Synthesis free?

CRM Synthesis costs $4.99, with no in-app purchases.

### Do Bookil or CRM Synthesis have ads?

Neither Bookil nor CRM Synthesis shows ads.

### Which is updated more often, Bookil or CRM Synthesis?

Bookil ships an update fortnightly, and CRM Synthesis every 10 days. Most recently, Bookil was updated on October 17, 2026 and CRM Synthesis on October 25, 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.*