---
title: "ChangeUnits2 — App Overview"
url: https://marlvel.ai/apps/changeunits2
category: Utilities
developer: Jack McCormack
platforms: ios
rating: 5.0 (1 ratings)
pricing: paid
report_level: overview
generated: 2026-05-07
last_verified: "2026-05-07T23:24:58.960Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** ChangeUnits2 is a niche, offline-first conversion tool optimized for engineering workflows and thermal energy unit management.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Utilities |
| Rating | 5.0 ★ (1) |
| Pricing | paid |
| Platforms | iOS |
| Latest Version (iOS) | 3.7 |
| Developer | Jack McCormack |

<!-- SECTION: Summary -->
## What is ChangeUnits2?

ChangeUnits2 is a specialized unit conversion utility designed for high-speed, offline calculations across engineering and thermal units. It features a dual-mode interface that allows users to toggle between scientific notation and standard decimal formats while providing localized time zone conversion.

<!-- SECTION: Key Features -->
## Key Features

- **Dual-Mode Interface**: Users can toggle between shortform engineering and longform descriptive lists, which simultaneously switches between scientific notation and standard decimal formats.
- **Thermal Unit Conversion**: Supports rapid conversion between BTUs, Therms, kWh, kCals, and gasoline volume equivalents.
- **Time Zone Utility**: Calculates and displays the equivalent time in a user's current location based on a specified time in Tokyo.
- **Precision Control**: Allows users to increase significant figures by appending zeros to the input value before conversion.

<!-- SECTION: Target Audience -->
## Who is it for?

Engineers and technical professionals requiring rapid, offline unit conversions and thermal energy calculations.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/changeunits2/id1661260714?uo=4)
- [Full Intelligence Report](https://marlvel.ai/apps/changeunits2)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/changeunits2).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*