# Flue Gas Analysis vs JustCountdown

The clearest difference is update cadence: JustCountdown at every 2 weeks against Flue Gas Analysis's every 2 months. On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Flue Gas Analysis ships an update every 2 months, JustCountdown every 2 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Flue Gas Analysis | JustCountdown |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/justcountdown/id6757598807/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 147 MB | 3 MB |
| Requires iOS | **12.2** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Woehler Technik GmbH](https://appshunter.io/developer/959456679) | [John Healy](https://appshunter.io/developer/1065386158) |

## What reviewers say

### Flue Gas Analysis

[App page](https://appshunter.io/ios/app/flue-gas-analysis/id1666473195)

View and export flue gas analysis data from Wöhler Analyzers on your mobile device. Configure graphical displays and save measurements in various formats like PDF, CSV, and XML.

**Highlights:** Graphical and numerical display of measured values, Configuration of graphical display, Save measured values as PDF, CSV, XML, JPG, Configuration of PDF file, Export data from Wöhler Analyzers

**Features:** macOS Compatibility

**In-app purchases:** none


### JustCountdown

[App page](https://appshunter.io/ios/app/justcountdown/id6757598807)

This app provides a simple and elegant way to track upcoming events directly from your wrist. Set target dates and times, and view your progress with glanceable complications on your watch face. It offers multiple display formats and a private, ad-free experience.

**Highlights:** Set countdowns on your watch, Glanceable watch face complications, Multiple display formats, Favorite and recent event lists, Count up from past dates, Private and ad-free design

**In-app purchases:** none


## Frequently asked questions

### Is Flue Gas Analysis free?

Flue Gas Analysis is free to download, with no in-app purchases.

### Is JustCountdown free?

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

### Do Flue Gas Analysis or JustCountdown have ads?

Neither Flue Gas Analysis nor JustCountdown shows ads.

### Which is updated more often, Flue Gas Analysis or JustCountdown?

Flue Gas Analysis ships an update every 2 months, and JustCountdown every 2 weeks. Most recently, Flue Gas Analysis was updated on November 3, 2026 and JustCountdown on November 5, 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.*