OSM sketch vs Map Stretch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OSM sketch
Draw directly on OpenStreetMap maps to create annotations and memos. Save your drawings as GPX files to upload and edit on desktop OSM editors. Ideal for planning routes or marking points of interest on the go.
- Draw on OSM maps
- Save drawings as GPX
- Upload to OSM account
- Multi-touch gestures
- Display current location
- Zoom and scroll map
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For OpenStreetMap(OSM) mapping, drawing your memo on paper printed the OSM map is good solution. You can describe on the paper anything e.g. Line, words, arrow, symbol and illustration. "OSM sketch" realize such paper mapping on iPhone. You can draw on OSM map anything you want to memo anywhere, anytime without printing beforehand. Operation is easy and optimized for small screen. Multi touch operation ,scroll and zoom, can be executed also during "drawing mode" so you can pull new canvas out quickly. To display current location and zoom in/out map support your mapping and these function are difficult for paper. The drawn line exchange into GPX file and upload to your OSM account page. You can open the GPX file by PC OSM editor(iD, Potlatch2 and JOSM) and edit OSM data based on your lines when you return your home.
Map Stretch
Overlay custom images onto interactive maps to navigate using your device's GPS and compass. Record, edit, and share your routes and drawings. Access hundreds of public maps from the National Park Service and other users.
- Overlay custom images onto interactive maps
- Navigate with GPS and compass
- Record, edit, and share routes
- Access public National Park Service maps
- Import/export maps in KML/KMZ formats
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View hundreds of public maps from the National Park Service and other users. Can't find a map? Stretch your own image onto the interactive map, then use your compass and GPS to navigate with ease. Map Stretch features an easy to use interface with no hassles or hidden fees of any kind, EVER! Map Stretch now features GPS tracking to record your route. Tracks and drawings can be easily edited, saved and shared with others. A Quick Overlay Example: You are handed a brochure with a map highlighting interesting places to visit... With Map Stretch, you can: - Find that someone has already stretched and shared the map from your brochure and add it to your map with a single tap. OR - Snap a photo of the map in the brochure. - Stretch it to match the map on your phone. - Know exactly where you are (and which direction you are facing) on the brochure map at all times. Details: + Map Stretch is completely free and requires no login or registration. + Sharing your stretched photos is optional and is done anonymously. + Map Stretch Lines and Overlays can be imported and exported in Google Earth kml and kmz formats.
Screenshots
Verdict
The clearest difference is ads: Map Stretch at none against OSM sketch's shown. Map Stretch also leads on update cadence (every 5 days vs every 4 months) and monetization model (free vs ad-supported). OSM sketch's advantage is review sentiment (100% vs 78%) and rating (4.5 vs 4.2). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
OSM sketch holds the better App Store score, 4.5 against 4.2. That said, the two scores are not equally well evidenced: Map Stretch has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of OSM sketch's written reviews are positive against 78% of Map Stretch's.
OSM sketch ships an update every 4 months, Map Stretch every 5 days. The most recent releases landed on September 19, 2026 and October 17, 2026 respectively.
| Parameter | OSM sketch | Map Stretch |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | 4.2 (10 ratings) |
| Positive reviews | 100.0% of reviews — better | 77.8% of reviews |
| Number of ratings | 2 | 10 — better |
| Update frequency | Every 4 months | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Masaki Fujimoto | Walk About Apps |
Customer experience
OSM sketch
Map Stretch
In-app purchases
OSM sketch
No in-app purchases
Map Stretch
No in-app purchases








