Comparison

Unbuilt Works vs Altitut Interviews

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Unbuilt Works

Explore ambitious architectural projects that were never built. Discover visionary designs, historical concepts, and megastructures through an interactive map, categorized by era, style, and architect. Learn the reasons why these groundbreaking ideas never reached completion.

Highlights
  • Interactive global map of unbuilt architecture
  • Browse by era, style, and architect
  • Detailed commentary on construction challenges
  • Explore visionary design concepts
  • Search by project type and era
  • Save favorite projects
Features
Read full description

THE GREATEST BUILDINGS IN HISTORY—THAT WERE NEVER BUILT. What if Frank Lloyd Wright's mile-high skyscraper reshaped Chicago? What if Buckminster Fuller's floating cities became real? What if Paris built a pyramid larger than Giza? Unbuilt Works explores the world's most ambitious unbuilt architecture, visionary design concepts, and historical projects that came shockingly close to reality. EXPLORE UNBUILT ARCHITECTURE WORLDWIDE Discover thousands of unbuilt buildings, concept architecture, and never-built megastructures through an interactive global map. Tap any location to see what architects once planned for that city. BROWSE BY ERA, STYLE, AND ARCHITECT Find forgotten projects from: - Ancient Roman engineering - Renaissance city planning, including da Vinci's ideal city - Modernism, Brutalism, and postmodern proposals - Wright, Fuller, Zaha Hadid, and more - Futuristic, experimental, and conceptual architecture Search unbuilt skyscrapers, urban design concepts, retro-futurism, parametric ideas, and radical architectural visions from every era. LEARN WHY THEY WERE NEVER BUILT Each project includes detailed commentary on the political, engineering, economic, and design challenges that prevented construction: - Political opposition and planning failures - Financial collapse and budget overruns - Engineering limits of the era - Unrealistic design concepts - Wars, cultural shifts, and lost opportunities FEATURED PROJECTS - The Palace of the Soviets - Tatlin's Tower - The Mile-High Illinois - Metabolist megastructures - Unrealized Grand Central replacements - Experimental, cancelled, and visionary proposals worldwide Perfect for anyone who loves architecture, design history, urban planning, and speculative buildings. GO PREMIUM FOR FULL ACCESS Upgrade anytime to unlock: - Unlimited favorites - Advanced search by architect, era, style, or region - Complete access to thousands of unbuilt projects - No ads - Support independent architectural research ABOUT UNBUILT WORKS Unbuilt Works provides educational analysis, architectural commentary, and documented historical research on projects that influenced design—despite never being built. Explore how these ideas shaped cities, movements, and modern architecture. Download for free and start discovering the world that could have been. What if they built it? Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Altitut Interviews

This AI-powered coach helps students and founders develop, validate, and pitch startup ideas. Get instant feedback on your pitch, tools for customer discovery, and guidance for pitch competitions.

Highlights
  • AI coaching for startup ideas
  • Pitch feedback and analysis
  • Customer discovery tools
  • Validation frameworks
  • Pitch competition preparation
  • 24/7 startup mentor
Features
Read full description

Altitut Interviews is for students and early founders doing customer discovery. Capture what people tell you in the field—on your phone or on paper—and turn it into organized interview records you can revisit anytime. Record live interviews Record conversations, review transcripts, and see insights from your sessions—pain points, quotes, and themes—so patterns across interviews are easier to spot. Scan your Founder's Field Notebook Photograph handwritten notebook pages. Altitut digitizes your notes, analyzes the content, and syncs the interview to your account—so paper fieldwork and in-app history stay in one place. Whether you're running discovery for a class project or your first venture, Altitut Interviews focuses on listening and documenting: record when you're with people, scan when you're back at your desk.

Screenshots

Unbuilt Works4 screens
Altitut Interviews4 screens

Verdict

The call

The clearest difference is in-app purchases: Altitut Interviews at none against Unbuilt Works's 2. Altitut Interviews also leads on ads (none vs shown). Unbuilt Works's advantage is update cadence (every 5 days vs monthly) and iOS requirement (13.4 vs 17.6). On price, rating, ratings volume and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Unbuilt Works sells 2 in-app purchases, starting at $4.99 per month. Altitut Interviews asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Unbuilt Works against 5.0 for Altitut Interviews. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

UpkeepUpdate frequency

Unbuilt Works ships an update every 5 days, Altitut Interviews monthly. The most recent releases landed on October 28, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Unbuilt Works versus Altitut Interviews: the parameters behind the verdict, then further details
ParameterUnbuilt WorksAltitut Interviews
PriceFreeFree
Rating5.0 (2 ratings)5.0 (4 ratings)
Positive reviews—100.0% of reviews
Number of ratings24 — better
Update frequencyEvery 5 days — betterMonthly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.4 — better17.6
Further details — not scored
Size39 MB64 MB
Age rating4+4+
DeveloperBrett CassidyALTITUT LLC

In-app purchases

2 purchases

Unbuilt Works

Subscriptions2
  • Premium Monthly$4.991 Month
  • Premium Yearly$39.991 Year
None

Altitut Interviews

No in-app purchases

Questions

Is Unbuilt Works free?
Unbuilt Works is free to download, with in-app purchases available.
Is Altitut Interviews free?
Altitut Interviews is free to download, with no in-app purchases.
Which has better reviews, Unbuilt Works or Altitut Interviews?
Unbuilt Works and Altitut Interviews are both rated 5.0 out of 5 on the App Store, from 2 and 4 ratings respectively.
Do Unbuilt Works or Altitut Interviews have ads?
Unbuilt Works shows ads; Altitut Interviews does not.
Which is updated more often, Unbuilt Works or Altitut Interviews?
Unbuilt Works ships an update every 5 days, and Altitut Interviews monthly. Most recently, Unbuilt Works was updated on October 28, 2026 and Altitut Interviews on October 30, 2026.

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