Comparison

Key vs MapRadius

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

Head to head
About

Key

Features
Read full description

Simply input those key pieces of information and you can very quickly get at them when you need them. Shown in nice big font size so you can reference it as you need. Tapping on an element will copy it to the clipboard so you can paste into another app or web form. You can create items from a list of suggested types but can also choose your own type and image.

About

MapRadius

Features
Read full description

MapRadius β€” Stay in Control, Wherever You Move MapRadius gives you a clear, simple, and privacy-friendly way to understand your surroundings. Create multiple radii, track your movement in real time, and get instant alerts when entering or leaving important zones. Perfect for walkers, cyclists, drone pilots, boaters, RC enthusiasts, or anyone who needs precise geofence awareness. Stay Oriented at a Glance Choose any starting point and instantly visualize a customizable radius. See your distance, direction, speed, elevation, and ETA in real time. Switch between standard, satellite, or hybrid maps for the perfect overview. Build the Zones That Fit Your Life Create as many radii as you need, from your location, an address, or a tap on the map. Name and color-code them to stay organized, and adjust them anytime. Smart Alerts That Work for You Get instant notifications when you enter or leave a zone. Set individual speed limits per radius, notifications adapt to your preferred units. Everything is processed directly on your device for fast and private alerts. NEW: Partner Alerts Stay connected with the people who matter. Two devices can link together and notify each other when one partner enters or exits selected radii. Easy device-to-device pairing Choose which zones trigger notifications Optional alert confirmations Privacy First Your exact location never leaves your device. Only a simple β€œentered” / β€œleft” signal is shared β€” never your position. Private by Design Your locations, movements, and radii stay on your device only. No tracking, no sharing of coordinates, and full control over permissions.

Screenshots

Key4 screens
MapRadius4 screens

Verdict

The call

The clearest difference is update cadence: MapRadius at weekly against Key's every 21 months. Key's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Key ships an update every 21 months, MapRadius weekly. Both last shipped on November 7, 2026.

Scorecard2 real differences Β· 4 level
Key versus MapRadius: the parameters behind the verdict, then further details
ParameterKeyMapRadius
PriceFreeFree
Update frequencyEvery 21 monthsWeekly β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPod β€” betteriPhone
Requires iOS13.0 β€” better16.0
Further details β€” not scored
Size1 MB12 MB
Age rating4+4+
DeveloperPaul BarnesKunftia GmbH

In-app purchases

None

Key

No in-app purchases

None

MapRadius

No in-app purchases

Questions

Is Key free?
Key is free to download, with no in-app purchases.
Is MapRadius free?
MapRadius is free to download, with no in-app purchases.
Do Key or MapRadius have ads?
Neither Key nor MapRadius shows ads.
Which is updated more often, Key or MapRadius?
Key ships an update every 21 months, and MapRadius weekly. Most recently, Key was updated on November 7, 2026 and MapRadius on November 7, 2026.

Other comparisons