Comparison

OldMapsOnline vs Retaining walls

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

Head to head
About

OldMapsOnline

Explore a vast collection of historical maps to visualize how the world has changed. Overlay old maps with modern views, use an interactive timeline, and access integrated historical information. Contribute to a growing community database of cartographic history.

Highlights
  • Vast collection of historical maps
  • Interactive map with timeline
  • Overlay and compare maps
  • Community-driven collection
  • Wikipedia integration
  • Search by location and year
  • Browser extension for map collection
Features
Read full description

Step into the past with OldMapsOnline, the ultimate iOS app for history enthusiasts and curious minds. Discover a treasure trove of historical maps that reveal the stories of our world like never before. Key Features: Vast Collection of Historical Maps: Access over 500,000 high-resolution scanned maps from prestigious cultural institutions. Explore detailed maps from various eras and see how geographical and political landscapes have changed over time. Interactive Map with Timeline: Dive deep into history with an interactive map that features a dynamic timeline. Select any year and watch the map transform to reflect historical data, showcasing the evolution of political boundaries and significant events. Overlay and Compare Maps: Gain a unique perspective by overlaying historical maps onto modern maps. Use our compare tool to see the transformation of cities, regions, and landscapes across centuries. Community-Driven Collection: Join a growing community of history enthusiasts who contribute to the largest online collection of old maps. Share your discoveries and help uncover the hidden stories within these maps. Seamless Wikipedia Integration: For those eager to learn more, our app offers integrated information from Wikipedia, providing a gateway to extensive historical content and deeper research. Intuitive Search by Location: Effortlessly find old maps by zooming and panning on a world map, or simply type in a place name. Utilize the timeline to explore different years and watch the map update with historical boundaries. Convenient Browser Extension: Easily add historical maps found on the web to the OldMapsOnline collection with our browser extension, expanding the richness of our database. Embark on a Journey Through Time OldMapsOnline offers powerful tools to visualize history, including a 3D terrain view, augmented reality features, and advanced catalog search. Whether you're a historian, student, or an explorer of the past, our app makes it easy to delve into the rich history of any location. About OldMapsOnline Created by a dedicated team of cartographers, historians, and volunteers, OldMapsOnline is a collaborative project that harnesses the latest technology to make historical maps accessible to everyone. Our partners include renowned institutions like the British Library, ETH Zurich, and the David Rumsey Collection at Stanford. Download OldMapsOnline today and start your journey through the world's history, one map at a time!

About

Retaining walls

This app helps engineers design and assess flexible retaining walls. It simplifies complex calculations for stable and cost-efficient wall designs with an intuitive interface and advanced features.

Highlights
  • Design flexible retaining walls
  • Assess wall stability
  • Simplify complex calculations
  • Cost-efficiency optimization
  • User-friendly interface
Features
Read full description

Empower your engineering projects with the Retaining walls, a versatile and intuitive tool for designing and assessing flexible retaining walls. Our app simplifies the complex calculations required for flexible wall designs, ensuring stability and cost-efficiency. With a user-friendly interface and a range of advanced features, you'll have the power to optimize your retaining wall designs like never before.

Screenshots

OldMapsOnline4 screens
Retaining walls1 screens

Verdict

The call

The clearest difference is price: OldMapsOnline at Free against Retaining walls's $0.99. OldMapsOnline also leads on rating (3.2 vs 1.0) and ratings volume (27 vs 1). Retaining walls's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement 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

OldMapsOnline is free to download; Retaining walls costs $0.99 up front. OldMapsOnline sells 1 one-off in-app purchase. Retaining walls asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OldMapsOnline holds the better App Store score, 3.2 against 1.0. That said, the two scores are not equally well evidenced: OldMapsOnline has 27 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

OldMapsOnline ships an update every 4 months, Retaining walls fortnightly. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
OldMapsOnline versus Retaining walls: the parameters behind the verdict, then further details
ParameterOldMapsOnlineRetaining walls
PriceFree — better$0.99
Rating3.2 (27 ratings) — better1.0 (1 ratings)
Positive reviews25.6% of reviews—
Number of ratings27 — better1
Update frequencyEvery 4 monthsFortnightly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad — betteriPhone
Requires iOS17.216.4 — better
Further details — not scored
Size11 MB4 MB
Age rating12+4+
DeveloperKlokan TechnologiesFourth Element Energy Pty Ltd

Bugs and requests

OldMapsOnline

Reported bugs

3 issues
  • Maps not loading properly
  • Constant crashes and freezes
  • Inaccurate GPS and location data

Requested features

4 requests
  • Ability to overlay maps and see current location
  • Option to download maps for offline use
  • Improved search and filtering capabilities
  • Easier map sharing and exporting

Retaining walls

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

OldMapsOnline

One-time1
  • Ad free version$1.99
None

Retaining walls

No in-app purchases

Questions

Is OldMapsOnline free?
OldMapsOnline is free to download, with in-app purchases available.
Is Retaining walls free?
Retaining walls costs $0.99, with no in-app purchases.
Which has better reviews, OldMapsOnline or Retaining walls?
OldMapsOnline is rated higher. OldMapsOnline averages 3.2 out of 5 from 27 ratings, while Retaining walls averages 1.0 from 1 ratings.
Do OldMapsOnline or Retaining walls have ads?
OldMapsOnline shows ads; Retaining walls does not.
Which is updated more often, OldMapsOnline or Retaining walls?
OldMapsOnline ships an update every 4 months, and Retaining walls fortnightly. Most recently, OldMapsOnline was updated on November 1, 2026 and Retaining walls on November 3, 2026.

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