OldMapsOnline vs Hidden History Project
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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For those eager to learn more, our app offers integrated information from Wikipedia, providing a gateway to extensive historical content and deeper research.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!
Hidden History Project
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Effortlessly discover the stories lying just around the corner with Hidden History. By notifying users when they near sites of historical significance primarily around the greater Palo Alto area, Hidden History hopes to forge new connections between the land and the locals. Although history isn’t always easy to see in Silicon Valley, it’s everywhere. Whether you’re on your morning jog or evening commute, the Hidden History Project hopes to make it easier for you to find it. History is scientifically proven to facilitate a sense of place. Whether you were born and raised in Silicon Valley or moved in a year ago, history can motivate you to engage with and invest in your communities. Features of this app: Historical map of the Palo Alto area 32 historical sites ranging from Ohlone native history to tech-era history represented by pins on the map Sites regularly added Ability to filter sites by era Short and long descriptions of historical sites featuring context, visual descriptions, and anecdotes Contemporary and historical photos of sites Counter of sites visited Search for historical sites
Screenshots
Verdict
The clearest difference is in-app purchases: Hidden History Project at none against OldMapsOnline's 1. Hidden History Project also leads on ads (none vs shown) and update cadence (every 9 days vs every 4 months). On price 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
Both are free to download. OldMapsOnline sells 1 one-off in-app purchase. Hidden History Project asks for nothing beyond the download.
OldMapsOnline ships an update every 4 months, Hidden History Project every 9 days. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.
| Parameter | OldMapsOnline | Hidden History Project |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (27 ratings) — better | — |
| Positive reviews | 25.6% of reviews | — |
| Number of ratings | 27 — better | — |
| Update frequency | Every 4 months | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.2 | 13.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 24 MB |
| Age rating | 12+ | 4+ |
| Developer | Klokan Technologies | Ying Chen113492257131 |
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
Hidden History Project
Not enough reviews yet to summarise bugs or requests.
In-app purchases
OldMapsOnline
- Ad free version$1.99
Hidden History Project
No in-app purchases
Questions
Is OldMapsOnline free?
Is Hidden History Project free?
Do OldMapsOnline or Hidden History Project have ads?
Which is updated more often, OldMapsOnline or Hidden History Project?
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