Inquire — Wikipedia Around You icon
Morning — Weather, To-Do, News icon

Tamper

For information seekers, students, and productivity-focused individuals looking for clean, ad-free, and offline-accessible tools.

2apps4.2(38)TravelProductivity

Snapshot

Who is Tamper?

Providing ad-free, open-source access to encyclopedic knowledge and personal productivity tools. Focused on clean, distraction-free utility for mobile users.

Target audience

Information seekersStudentsProductivity-focused individuals looking for clean

Active nemesis

Atlas Obscura

Other rivals

Portfolio

2
apps
Productivity1
Travel1

Last updated

Morning — Weather, To-Do, News

v1.9.4

1.2y ago

Active

Publisher DNA

What defines Tamper?

Publisher DNA

Primary focus

Utility and information access apps

Scale

indie

Target audience

Information seekers, students, and productivity-focused individuals looking for clean, ad-free, and offline-accessible tools.

Origin

Founded in 2018 by Jeff Dlouhy and Chris Masterson, a two-man team focused on creating high-quality, open-source mobile applications.

Signature Patterns

  • Strictly ad-free user experience across all titles
  • Emphasis on open-source development and community-driven content
  • Minimalist, utility-first UI design
  • Focus on offline-accessible and location-aware information discovery
Active

Portfolio momentum

Released 5 updates across 2 apps in the last 6 months, with both titles receiving recent maintenance.

Last release 22d agoActive apps 2

Company profile

medium confidence
Founded
2018
Employees
1-10

Portfolio

What does Tamper ship?

Apps

2 apps analysed

Cross-app deep linking creates a low-cost acquisition loop

  • Comprehensive educational content provides reliable information for students and curious learners globally
  • Navigation and search logic changes post-update increase the number of clicks required for simple tasks

Distributed across 12 markets, strongest in Europe.

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

Americas (3)

  • Brazil1 / 1
  • Mexico1 / 1
  • United States1 / 1

Europe (7)

  • France1 / 1
  • Germany1 / 1
  • Italy1 / 1
  • Netherlands1 / 1
  • Portugal1 / 1
+2 more europe markets
  • Spain1 / 1
  • Sweden1 / 1

Asia-Pacific (2)

  • Japan1 / 1
  • South Korea1 / 1

Core markets (1/1 apps)

BrazilFranceGermanyItalyJapanMexicoNetherlandsPortugalSouth KoreaSpainSwedenUnited States

User Sentiment

How do users feel about their apps?

1

Positive apps

0

Neutral / mixed

0

Negative apps

72/100

Avg sentiment score

Rivals

Who does Tamper compete with?

The rivals identified

Nemeses(1)

Atlas Obscura

known forAtlas Obscura Travel Guide

1 app4.8Travel

Directly overlaps with the 'discovery of surroundings' niche by focusing on curated, unusual, and hidden points of interest.

Contenders(1)

National Park Service

known forNational Park Service

2 apps4.9Travel

Dominates the location-based discovery niche for outdoor travel, providing high-fidelity, official data for specific geographic regions.

Same space(3)

Google

known forGoogle Earth

1 app3.8Travel

Provides a visual, satellite-based discovery layer that competes for the user's attention when exploring new locations.

Roadtrippers

known forRoadtrippers - Trip Planner

1 app4.6Travel

Adjacent utility that focuses on route-based discovery, serving the same 'what is around me' intent for travelers.

Wikimedia Foundation

known forWikipedia

1 app4.4Travel

The primary data source for the target app, representing the ultimate platform-level competitor for information access.

New entrants(1)

Via Transportation

known forField Trips - Powered by Via

1 app4.6Travel

A recent market entrant (July 2025) that signals an attempt to bridge transportation logistics with location-based discovery.

The Analyst's Read

The bottom line on Tamper

Bottom line

Tamper is a highly focused indie studio that successfully leverages open-source data to deliver high-value, ad-free utilities. Their ability to maintain a massive user base for their flagship Wikipedia tool with a two-person team demonstrates exceptional product-market fit and operational efficiency.

Frequently asked questions

How many apps does Tamper publish?
Tamper has 2 apps tracked by Marlvel, primarily in the Productivity category.
What kind of apps does Tamper make?
Tamper's portfolio is concentrated in Productivity and Travel, with an average rating of 4.2/5 across rated apps.
What is Tamper's top app?
By review volume across the portfolio, Morning — Weather, To-Do, News is Tamper's best-known app tracked by Marlvel.
In how many countries are Tamper's apps available?
Marlvel has tracked Tamper's apps across 12 countries.

What fed this analysis

Apps analyzed:
2
With full intel:
1
With overview:
2
Website scraped:
yes
Social presence:
yes

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 Tamper, 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. “Tamper intelligence.” Updated 2026-05-08. https://marlvel.ai/publishers/tamper

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Data licensed under CC-BY-NC 4.0