Mobile App Development Agencies in Washington

12 mobile app development agencies are listed in Washington, United States. 11 have been assessed on the Agency List Score as of October 2026; the highest-ranked is Lunarbyte at 97.3.

Ranked · 8 of 11 assessed

Ordered by Agency List Score
#1 of 11 assessed
Lunarbyte
97

Custom software and AI integration for scalable solutions

Cross Platform Apps
#2 of 11 assessed
Inventive Mobile
92

Crafting mobile apps with user-centric design and robust development

App Store OptimizationMaintenance and UpdatesMobile CI CD
#3 of 11 assessed
Brain Inventory
89

Custom software and mobile app development with agile processes

Mobile CI CD
#4 of 11 assessed
WADIC
73

Custom software and mobile app development for digital transformation

iOS DevelopmentMobile CI CD
#5 of 11 assessed
Mobcoder
73

Mobile, web, and AI app development for finance, fitness, and enterprise clients

Android DevelopmentApp QA and TestingApp Store Optimization
#6 of 11 assessed
GB Pro
73

Designs websites, mobile apps, and branding systems

Android DevelopmentApp QA and TestingApp Store Optimization
#7 of 11 assessed
Gravity Jack
66

Augmented and Virtual Reality Solutions for Diverse Industries

Android DevelopmentCross Platform AppsiOS Development
#8 of 11 assessed
Moby
53

Designs and develops digital products and mobile apps

Android DevelopmentApp QA and TestingApp Store Optimization

Also in Washington · 4 not ranked here

1 have not yet been assessed on the Agency List Score. Alphabetical.

About this ranking

What this page ranks

This page ranks 8 of the 11 assessed mobile app development agencies in Washington, United States — the ones carrying a published score — out of 12 listed.

The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.

Cohorts and awards

Agencies are compared within a cohort — here, Mobile App Development in Washington, United States. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 11, so the strongest award available here is top 25%.

The 1 mobile app development agency not yet assessed is listed on this page but not ranked.

A further 3 were assessed and no published evidence of their work was found, so no score is shown for them.

Read the full methodology

Paid placement

Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.

Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.

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Questions

How many mobile app development agencies are in Washington, United States?
12 are listed on Agency List in Washington, United States. 11 of them have been assessed on the Agency List Score as of October 2026, and 8 of those carry a published score.
Which mobile app development agency in Washington, United States is ranked highest?
Lunarbyte, with an Agency List Score of 97.3, ranks #1 of 11 assessed agencies in Mobile App Development in Washington, United States.
Why are 4 mobile app development agencies listed here but not ranked?
1 of the 12 listed have not yet been assessed on the Agency List Score. A further 3 were assessed and no published evidence of their work was found, so no score is shown for them. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
How is the ranking determined?
By Agency List Score, within the Mobile App Development in Washington, United States cohort of 11 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.