# ViDiLabs Calc vs FlutterTime Timezone Converter

The clearest difference is price: FlutterTime Timezone Converter at Free against ViDiLabs Calc's $18.99. FlutterTime Timezone Converter also leads on rating (4.9 vs 3.0) and update cadence (fortnightly vs every 4 months). ViDiLabs Calc's advantage is iOS requirement (12.0 vs 18.0). On ads and in-app purchases there is nothing between them.

FlutterTime Timezone Converter is free to download; ViDiLabs Calc costs $18.99 up front. Neither carries in-app purchases, so what you see is what you pay.

FlutterTime Timezone Converter holds the better App Store score, 4.9 against 3.0. That said, the two scores are not equally well evidenced: FlutterTime Timezone Converter has 21 ratings behind it against 1, so its average is the more settled of the two.

ViDiLabs Calc ships an update every 4 months, FlutterTime Timezone Converter fortnightly. The most recent releases landed on October 2, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | ViDiLabs Calc | FlutterTime Timezone Converter |
| --- | --- | --- |
| Price | $18.99 | **Free** |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/vidilabs-calc/id1054879397/reviews) | **[4.9 (21 ratings)](https://appshunter.io/ios/app/fluttertime-timezone-converter/id6740316879/reviews)** |
| Number of ratings | 1 | **21** |
| Positive reviews | — | 88.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Paid | **Free** |
| Size | 9 MB | 3 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [ViDi Labs Pty Ltd](https://appshunter.io/developer/1054879396) | [DBElement, LLC](https://appshunter.io/developer/292400771) |

## What reviewers say

### ViDiLabs Calc

[App page](https://appshunter.io/ios/app/vidilabs-calc/id1054879397)

This app calculates necessary camera lens focal lengths and object distances for optimal pixel density, aiding in compliance with surveillance standards. It also estimates storage capacity for video recordings and helps analyze moving object blur for clearer image capture.

**Highlights:** Calculate required focal length and object distance, Determine required storage capacity, Pixel density calculation for identification and recognition, Database of commercially available sensors, Manual entry for custom variables, Moving object blur analysis, Pre-set pixel densities for common projects

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

**In-app purchases:** none


### FlutterTime Timezone Converter

[App page](https://appshunter.io/ios/app/fluttertime-timezone-converter/id6740316879)

Effortlessly manage global time zones with a visual timeline. This app simplifies scheduling for remote teams and travelers by showing time differences and availability at a glance. It offers precise time zone support and customizable labels without ads or tracking.

**Highlights:** Visual timeline for time zone alignment, At-a-glance status indicators, Support for unlimited locations, UTC, GMT, and Military (Zulu) time, Customizable clock labels, Dark Mode and Liquid Glass design

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ViDiLabs Calc free?

ViDiLabs Calc costs $18.99, with no in-app purchases.

### Is FlutterTime Timezone Converter free?

FlutterTime Timezone Converter is free to download, with no in-app purchases.

### Which has better reviews, ViDiLabs Calc or FlutterTime Timezone Converter?

FlutterTime Timezone Converter is rated higher. ViDiLabs Calc averages 3.0 out of 5 from 1 ratings, while FlutterTime Timezone Converter averages 4.9 from 21 ratings.

### Do ViDiLabs Calc or FlutterTime Timezone Converter have ads?

Neither ViDiLabs Calc nor FlutterTime Timezone Converter shows ads.

### Which is updated more often, ViDiLabs Calc or FlutterTime Timezone Converter?

ViDiLabs Calc ships an update every 4 months, and FlutterTime Timezone Converter fortnightly. Most recently, ViDiLabs Calc was updated on October 2, 2026 and FlutterTime Timezone Converter on October 19, 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.*