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Allen Sieler

For professional HVAC sheet metal workers, detailers, and installers requiring precise ductwork layout calculations on job sites.

Known forEasy Offset
2apps4.7(26)Productivity

Snapshot

Who is Allen Sieler?

Equipping HVAC professionals with specialized calculation tools to replace manual formulas and improve sheet metal layout accuracy.

Target audience

Professional HVAC sheet metal workersDetailersInstallers requiring precise ductwork layout calculations on job sites

Top rival

Cleveni

Portfolio

2
apps
Productivity2

Last updated

Easy Offset

v1.2

8.1y ago

Maintenance

Publisher DNA

What defines Allen Sieler?

Publisher DNA

Primary focus

Specialized HVAC calculation tools

Scale

indie

Target audience

Professional HVAC sheet metal workers, detailers, and installers requiring precise ductwork layout calculations on job sites.

Signature Patterns

  • •Focus on specialized trade-specific calculations for HVAC professionals
  • •Paid monetization model targeting professional users
  • •Utility-first design replacing manual trigonometry and multipliers
Maintenance

Portfolio momentum

Released 1 update in the last 6 months for the sole portfolio title, which was updated 19 days ago — maintaining active utility.

Last release 19d agoActive apps 1

Portfolio

What does Allen Sieler ship?

Apps

2 apps analysed

Easy Offset icon
Easy Offset

Reliable HVAC duct offset calculator to reduce errors and save time on-site.

4.3(25)

Analysis in progress

Single-market publisher, every app ships only to United States.

Based on 1 of 2 apps with localized market data, more coverage rolling in as scans complete · last scanned .

Americas (1)

  • United States1 / 1

Core markets (1/1 apps)

United States

Rivals

Who does Allen Sieler compete with?

The rivals identified

Same space(1)

Cleveni

known forClevCalc - Calculator

2 apps4.6Productivity

ClevCalc functions as a general-purpose utility that users keep alongside specialized tools like Easy Offset for daily math tasks that fall outside of HVAC-specific ductwork calculations.

The Analyst's Read

The bottom line on Allen Sieler

Bottom line

Allen Sieler is a disciplined niche publisher providing a high-utility tool for the HVAC trade. The single-app focus and paid model suggest a stable, professional-grade product-market fit within the sheet metal industry.

Frequently asked questions

How many apps does Allen Sieler publish?
Allen Sieler has 2 apps tracked by Marlvel, primarily in the Productivity category.
What kind of apps does Allen Sieler make?
Allen Sieler's portfolio is concentrated in Productivity, with an average rating of 4.7/5 across rated apps.
What is Allen Sieler's top app?
By review volume across the portfolio, Easy Offset is Allen Sieler's best-known app tracked by Marlvel.
In how many countries are Allen Sieler's apps available?
Marlvel has tracked Allen Sieler's apps across 1 country.

What fed this analysis

Apps analyzed:
1
With full intel:
0
With overview:
1
Website scraped:
no
Social presence:
no

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Allen Sieler, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Allen Sieler intelligence.” Updated 2026-04-24. https://marlvel.ai/publishers/allen-sieler

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Data licensed under CC-BY-NC 4.0