# Logcaliper — Digital storage convertor

> Digital storage and data rate conversion tool for IT professionals. (iPhone/iPad app by Christophe Briguet.)

- Source: https://appshunter.io/ios/app/logcaliper/id381096276 (this page in markdown: same URL + `.md`)
- Developer: [Christophe Briguet](https://appshunter.io/developer/381096279)
- Category: Utilities, Productivity
- Price: Free
- Rating: 4.80/5 from 5 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 8 MB
- Languages: American English
- Released: 2010-07-14
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/logcaliper/id381096276/reviews.md

## What is Logcaliper?

Your go-to app for data unit conversion, comparison and sizing
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Logcaliper is a tool that helps IT professionals understand the volume of data they are dealing with when designing a big data or security information and event management (SIEM) solution. It allows users to convert various data sizes and rate units, estimate storage capacity for long-term retention, and size and scope their log management/SIEM solutions. Logcaliper can quickly and easily convert message rates per second, hour, day, month, or year, as well as bits and bytes. It is available for free on iPhones and iPads, making it a convenient tool for IT professionals to use on the go.

HIGHLIGHTS:
- Conversion of various data units
- Ability to choose between decimal or binary conversion modes
- Database of average log sizes for common products, based on real-world data from millions of log samples
- Customizable average log size
- Support for creating a list of log sources
- Estimation of storage capacity requirements
- Estimation of distributed storage cluster size (e.g., number of Hadoop nodes)
- Email export of results
- Customizable log retention period
- Calculation of weighted mean log size for a list of log sources
- Rounded and simplified results for easier reading
- Internationalization of numbers format
- Requires iOS 15 or higher

## Key features

- Data unit conversion
- Decimal/binary conversion modes
- Estimate storage capacity
- Size SIEM solutions
- Convert message rates
- Log source list creation
- Email export of results

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/logcaliper/id381096276/reviews.md

### 4/5 — Headed in the right direction

*2012-02-29*

Just needs some tweaks and a couple bug fixes.

## Frequently asked questions about Logcaliper

### What is Logcaliper used for?

Logcaliper is a utility app designed to help IT professionals understand data volumes for big data and SIEM solutions. It converts data sizes and rates, estimates storage capacity, and aids in sizing log management systems.

### What devices is Logcaliper available on?

Logcaliper is available for free on iPhones and iPads, requiring iOS 15 or higher.

### Does Logcaliper have ads?

No, Logcaliper is ad-free, providing an uninterrupted experience for its users.

### How often is Logcaliper updated?

The latest version, 2.6.4, was last updated on February 6, 2026. While specific update frequency isn't detailed, the app has been around since 2010, indicating ongoing development.

### Can Logcaliper estimate storage for distributed systems?

Yes, Logcaliper can estimate the size of distributed storage clusters, such as the number of Hadoop nodes required.

### What kind of data can Logcaliper convert?

Logcaliper can convert various data sizes (bits and bytes) and message rates per second, hour, day, month, or year.

### Does Logcaliper offer different conversion modes?

Yes, Logcaliper allows users to choose between decimal or binary conversion modes for data units.

### What is the user rating for Logcaliper?

Logcaliper has a high user rating of 4.8 stars based on 5 ratings, indicating positive user sentiment.

## Version history (last 5 releases)

### 2.6.4 — 2026-02-06

- Fixed display issue when Dark Mode on
- Now copy / paste export contains detailed estimate data

### 2.6.3 — 2026-02-03

- Added support for iOS 26

### 2.6.2 — 2025-02-23

New Data Source: Added Stellar Cyber integration for enhanced security insights.
UI Improvements: Resolved interface issues on the iPhone 16 series for a smoother experience.
Improved First-Run Experience: The app now defaults to Conversion mode upon first installation.

### 2.6.1 — 2024-05-27

- Fixed a bug preventing closing the keyboard when entering a custom Average Message Size

### 2.6.0 — 2024-01-15

Dive into the fascinating world of data with our latest feature - Compare Mode! Now easily accessible from Settings > Mode, Compare Mode offers a unique and interactive way to understand the sizes of different data units. From everyday files to advanced data storage options, gain insights into how various data types stack up against each other.

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## Related topics

[logcaliper](https://appshunter.io/ios/topics/logcaliper)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*