Upstream: Technical Interviews

Name: Upstream: Technical Interviews
Author: DunderLab

LiveDunderLab2 apps · 4 installsEducationFreeIn-app purchases: $19.99 - $24.99 per itemcom.dunderlab.upstream

Review advanced software concepts and prepare for senior technical interviews.

Alert me ★ Watch Open in Play ↗

Total installs: 3
Installs / day: 0
Rating: —★
Released: 1 Aug 2026
Last update: 1 Aug 2026
Countries: —

Install history

exact counter from Google Play

30dAll

Installs per day · last 90 days

Change timeline

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Permissions

3 in 1 group

0 Sensitive0 Notable3 Routine

OtherRoutine3

Access to miscellaneous device features that don't fit other categories

Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
Connect to the internet to load content and send datafull network access · INTERNET
Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Full description

Upstream is a technical review platform built for software engineers who want to strengthen their engineering knowledge and prepare for more demanding technical challenges. Instead of teaching programming from scratch, Upstream helps you revisit advanced concepts through carefully curated technical content designed to reinforce long-term understanding. Every lesson is reviewed by experienced software engineers to ensure technical accuracy, practical relevance, and alignment with modern engineering practices. What you'll review • Software architecture principles • System design concepts • Design patterns • Distributed systems • Databases and data modeling • Networking fundamentals • Concurrency and multithreading • Performance optimization • Backend engineering concepts • Software engineering best practices Built for engineers who want to • Refresh important technical concepts • Prepare for senior software engineering interviews • Review architecture and system design topics • Strengthen problem-solving skills • Stay sharp between projects Upstream is suitable for software engineers at different stages of their careers, especially developers preparing for technical interviews or looking to deepen their understanding of modern software engineering. New technical content is added regularly, covering practical engineering topics used in real-world software development. Keep your engineering skills sharp with concise, expert-reviewed technical reviews designed for modern software engineers.

What's new

Welcome to Upstream 1.1.0! • Initial public release. • Structured micro-learning for experienced software engineers. • Production-focused lessons, quick recalls, interview questions, and scenario analysis. • Lifetime access to purchased tracks, including future content updates. Thank you for using Upstream!

Growing in Education

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