Customer Database vs LogBook Visitor Log
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Customer Database
Manage customer information securely on your mobile device, separate from personal contacts. Sync data with a MySQL server for backup and multi-device access. Includes GDPR tools, customer grouping, birthday management, and newsletter capabilities.
- Secure customer management
- MySQL server sync
- GDPR tools
- Customer grouping and birthdays
- Newsletter creation
- VCF/CSV import/export
- Incoming call identification
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This simple customer database application is designed for small companies for easy and secure customer management on smartphones and tablets, separated from private contacts. It is possible to sync your data with a (self-hosted) MySQL server to prevent loss or defect of your mobile device. This also allows to sync the data with multiple devices. In addition to that, it has tools for the EU-GDPR and you can group customers, manage customers birthdays and vouchers, write newsletters, import customers from VCF files and export your data into VCF or CSV files. Additionally, this app adapts the Dark Mode and has the ability to save customer images. The app shows the names of people saved in the customer database for incoming calls if you activate this in the iOS settings under "Phone" -> "Block and identify calls". Because of its high flexibility, the application is also often used in non-enterprise areas, such as teachers' management of parent contact information. Additional features that can be unlocked via in-app purchase: -> Custom Fields: also drop down selection lists and sorting by these fields is supported. -> "Input-Only-Mode": Optional activatable mode that allows only data entry. For example, the device can be handed to showroom visitors. -> Calendar: Manage customer appointments. Customers can insert the appointment directly into their calendar using a QR code. -> File Attachments: Attach up to 20 files to a customer. -> Design Options: Allows you to set your own title bar color. Terms of Use for the Sync Feature: https://georg-sieber.de/?page=app-customerdb-terms This app is Open Source: https://github.com/schorschii/customerdb-ios
LogBook Visitor Log
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It is critically important to keep track of visitors to your facitlity. Sentinel is a powerful tool that allows mobile tablets to be provisioned for guest self-registration or for employee escort sign in. REGISTER Register guests in a snap. No more paper to worry with. Snap a photo, get relevant information and they are in the system. VIEW Sentinel gives you the ability to see everyone signed into your facility. Easily sort and search the database for visitors LOCATE Locate and monitor visitor locations in a snap. Have more safety and security with Sentinel at the door. Within any industrial facility, it is critically important to keep track of visitors. Not only for their own safety but for the safety and security of your business. In the past and often today, visitor logs consist of paper on clipboards. But organizations are under pressure to maintain better visitor records. Now with LogBook Sentinel you can utilize mobile technology to register, track and locate guests at your facility. Sentinel is a powerful tool that is easy to implement and easy to use. Sentinel allows mobile tablets to be provisioned for guest self-registration or for employee escort sign in. Once the data is entered into Sentinel, the data syncs directly into LogBook where it is stored permanently and can be easily accessed for safety, security or compliance audits. Do you have multiple entry and exit points? Sentinel has all of your doors covered. It knows when and where guests entered and where they are now. It even takes a photo of your guest for quick identification.
Screenshots
Verdict
The clearest difference is in-app purchases: LogBook Visitor Log at none against Customer Database's 8. Customer Database's advantage is update cadence (every 3 weeks vs every 40 months) and device support (3 vs 1). On price and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Customer Database sells 8 in-app purchases, starting at $1.99 per month. LogBook Visitor Log asks for nothing beyond the download.
Customer Database ships an update every 3 weeks, LogBook Visitor Log every 40 months. The most recent releases landed on October 12, 2026 and September 30, 2026 respectively.
| Parameter | Customer Database | LogBook Visitor Log |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (47 ratings) — better | — |
| Positive reviews | 58.3% of reviews | — |
| Number of ratings | 47 — better | — |
| Update frequency | Every 3 weeks — better | Every 40 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 13.0 — better | 15.5.0 |
| Further details — not scored | ||
| Size | 3 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Georg Sieber | Doozer Software, Inc. |
In-app purchases
Customer Database
- Cloud Access License$1.991 Month
- Design Options$1.99
- Commercial Usage$4.99
- Custom Fields$4.99
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- Input-Only Mode & App Lock$4.99
- Calendar$4.99
- Files$5.99
- More than 500 Customers$8.99
LogBook Visitor Log
No in-app purchases
Questions
Is Customer Database free?
Is LogBook Visitor Log free?
Do Customer Database or LogBook Visitor Log have ads?
Which is updated more often, Customer Database or LogBook Visitor Log?
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