# ContactBook vs SessionStack

The clearest difference is in-app purchases: SessionStack at none against ContactBook's 11. SessionStack also leads on update cadence (every 4 days vs monthly) and rating (5.0 vs 4.7). ContactBook's advantage is device support (3 vs 1) and ratings volume (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. ContactBook sells 11 in-app purchases, starting at $2.49 per month. SessionStack asks for nothing beyond the download.

SessionStack holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

ContactBook ships an update monthly, SessionStack every 4 days. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | ContactBook | SessionStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (3 ratings)](https://appshunter.io/ios/app/contactbook-contact-manager/id1614251791/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sessionstack-plan-reinvent/id6807861664/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 69 MB | 81 MB |
| Requires iOS | **15.5** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Logicwind Technologies LLP](https://appshunter.io/developer/1545581834) | [Joannes van Eijk](https://appshunter.io/developer/1870672067) |

## What reviewers say

### ContactBook

[App page](https://appshunter.io/ios/app/contactbook-contact-manager/id1614251791)

Organize, manage, and share your contacts efficiently. This app centralizes all your contacts from various sources, allowing for easy editing, grouping, and access to shared information. It also offers synchronization with a web platform and private notes for shared contacts.

**Highlights:** Centralized contact management, Import from Google, Apple, Microsoft, CSV, VCF, Create, edit, and delete contacts, Access shared contacts, Two-way sync with web platform, Organize with groups and tags, Add private notes

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Individual Standard | $2.49 | per month |
| Individual Premium | $3.49 | per month |
| Family Standard | $7.49 | per month |
| Family Premium | $10.49 | per month |
| Team Standard | $24.99 | per month |
| Individual Premium | $29.99 | per year |
| Team Premium | $34.99 | per month |
| Family Standard | $71.99 | per year |
| Family Premium | $89.99 | per year |
| Team Standard | $249.99 | per year |
| Team Premium | $299.99 | per year |


### SessionStack

[App page](https://appshunter.io/ios/app/sessionstack-plan-reinvent/id6807861664)

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

**In-app purchases:** none


## Frequently asked questions

### Is ContactBook free?

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

### Is SessionStack free?

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

### Which has better reviews, ContactBook or SessionStack?

SessionStack is rated higher. ContactBook averages 4.7 out of 5 from 3 ratings, while SessionStack averages 5.0 from 1 ratings.

### Do ContactBook or SessionStack have ads?

Neither ContactBook nor SessionStack shows ads.

### Which is updated more often, ContactBook or SessionStack?

ContactBook ships an update monthly, and SessionStack every 4 days. Most recently, ContactBook was updated on October 24, 2026 and SessionStack on October 26, 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.*