◆ Sprintstack v2 — now taking Q4 projects · One team, brief to Play Store, no handoffs
â—† WORK

Apps on the Play Store right now.

Every project below is live, being used, and we can point you at the client for a longer conversation about how it went.

Games · Feature sprint · 2026

Long Way Studios · Sable Hollow

Added the Android-side leaderboards and cloud saves for an indie roguelike shipping cross-platform. Four-week sprint alongside their release schedule; merged clean into their existing Kotlin codebase.

4wk
Sprint
62%
Cloud save adoption
4.9★
Play rating
Games · Full build · 2026

Hollow Cathedral

Ported an indie narrative game from a bespoke engine to native Android. 12-week build, Play Store live in Q1, 4.8★ across 2,400 reviews. Publisher retained us for the sequel.

12wk
Build
2.4k
Reviews
4.8★
Play
Product · Rescue · 2025

Sun-Cold Games — Companion app

Rescued a companion Android app that had an 8% crash rate and no working release pipeline. Six-month engagement: crash rate to 0.3%, pipeline rebuilt, handed back to their in-house team clean.

6mo
Engagement
-96%
Crashes
28k
MAU
Product · Retainer · Ongoing

Ferro Publishing — Portfolio retainer

Ongoing engineering retainer covering seven Android games across a publisher's portfolio. Monthly capacity of 60 engineer-hours; used flexibly across their titles based on what's shipping that month.

7
Games
18mo
Retainer
60hr
Per month
â—† ALSO SHIPPED

Other Android apps in the last 18 months.

Q2

Kestrel Fleet

Driver-facing Android app for a UK delivery-fleet operator. Offline-first route management, barcode scanning, POD signature capture. 340 drivers.

10-week build · Enterprise distribution
Q1

Elin Wear

Companion Android app for a Wear OS smartwatch. Custom watch faces, workout sync, health data integration. Play Store live.

14-week build · Wear OS included
Q4

Sacha Bank

Play Store launch + 90-day ASO for a challenger banking app. Store listing, screenshots, feature video, staged rollout, review response process.

Launch project · +52% conversion
Q3

Iva Home

Feature sprint for a smart-home Android app. Multi-device grouping and scene control. 4 weeks, merged clean, adopted by 47% of active users.

4-week sprint · Adopted 47%
Q3

Marek Fleet

Platform audit for an Android app running on ruggedised industrial tablets. Report identified 6 critical improvements; the team implemented 5 in the next quarter.

2-week audit · 5/6 acted on
Q2

Solveig Coach

Full Android build for a fitness-coach platform. Video streaming, offline plan caching, in-app messaging with coach, subscription integration.

16-week build · 4.8★ Play

Want to be next?

Book a 30-minute intro. If it's a fit we'll write a phase-1 proposal inside a week.