# CTL — Contactless Temperature Logger

> Contactless temperature logger companion app for shipment monitoring. (iPhone/iPad app by Cryopak cvt.)

- Source: https://appshunter.io/ios/app/ctl/id1467378318 (this page in markdown: same URL + `.md`)
- Developer: [Cryopak cvt](https://appshunter.io/developer/1467378317)
- Category: Business
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 13.0 · 11 MB
- Languages: English
- Released: 2019-06-13
- Data updated: 2026-06-24
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ctl/id1467378318/reviews.md

## What is CTL?

The Cryopak CTL is a contactless temperature data logger that works in conjunction with a mobile app.With a line of sight of approximately 30.5 meters, this compact device can record temperatures within a shipment as low as 40C up to as high as 85C.
The CTL has two logging modes, a 16KB memory, and comes with either an internal or external sensor. Five LEDs indicate the available temperature thresholds (High High, High, OK, Low, and Low Low), with additional LEDs for Status and RF Module. A plastic sealing keeps moisture out.
Data reports can be downloaded in PDF, Excel, Text or Raw Data file.

## Key features

- Contactless temperature logging
- Two logging modes
- Temperature threshold indicators
- Status and RF module LEDs
- PDF, Excel, Text, Raw Data reports


## Frequently asked questions about CTL

### What is CTL?

CTL is a contactless temperature data logger that works with a mobile app to record temperatures within shipments. It can log temperatures from -40°C to 85°C and provides visual indicators for temperature thresholds and device status.

### What devices does CTL support?

CTL is supported on iPhone, iPad, and iPod devices.

### What file formats can I download data in from CTL?

Data reports from CTL can be downloaded in PDF, Excel, Text, or Raw Data file formats.

### What is the range of the CTL logger?

The CTL logger has a line of sight range of approximately 30.5 meters.

### Does CTL have ads?

No, CTL does not contain advertisements.

### How often is CTL updated?

The latest version of CTL is 2.4.0, and it was last updated on May 3, 2022.

### What is the age rating for CTL?

CTL has an age rating of 4+.

### What are the temperature logging capabilities of CTL?

CTL can record temperatures as low as -40°C up to as high as 85°C and has two logging modes with a 16KB memory.

## Version history (last 5 releases)

### 2.4.0 — 2022-05-03

The user interface is changed. Some minor bugs are fixed. The Radio Always On feature optimized.

### 2.3.9 — 2022-04-30

In this version the fonts are changed. 
Statistics page is updated. 
The destination email is saved.
Advance / Express user select is saved.

### 2.3.8 — 2022-04-28

This version is updated to support New MXP devices with fast transferring data

### 2.3.6 — 2021-01-18

Support new changes in CTL+ protocol and some bug fixed
This release is tested to support CTL, CTL+, MX loggers with the newest changes in FW and detect the FW versions.

### 2.3.5 — 2020-12-05

Express Entry Now Is Available

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## More apps by Cryopak cvt

- [Cryopak Connect Config](https://appshunter.io/ios/app/cryopak-connect-config/id6743498795)

All apps by Cryopak cvt: https://appshunter.io/developer/1467378317

## Related topics

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

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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 2026-06-24.*