Comparison

Subsurface Maps Offline vs Bwarm

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

Head to head
About

Subsurface Maps Offline

Access and edit your maps offline on your iOS device. Download maps from the cloud, make changes, and mark new points. Sync your edits back to the cloud for team access.

Highlights
  • Download maps for offline use
  • View and edit map features
  • Mark new points
  • Sync changes to the cloud
  • Turn map layers on/off
Read full description

Subsurface Maps Offline is an app that allows existing Subsurface Maps users to download their maps from the cloud to their iOS device for use offline. Using this app you can view your map, turn layers on and off, make changes to any feature, and mark new points. Then when you are back at the office you can use the "Sync" button to upload your changes to the Subsurface Maps cloud where they will be accessible to the rest of your team. The regular browser-based Subsurface Maps application is still the flagship product where you must go to create layers, change colors, modify your field layout, draw lines, etc. The offline app is a less functional version that allows you to do basic data collection and viewing offline. How it works 1. These instructions assume you already have a Subsurface Maps account. 2. Install this app on your tablet or phone. 3. Run the app and enter your Subsurface Maps user name and password. 4. Select which map(s) you want to download to your phone/tablet. 5. Open your map, view it, make changes, add new points, etc. 6. When you are ready to upload your changes click Menu, then click Offline Maps, then click the 'Sync' button next to your map name. This will upload your edits and download any changes that others have made.

About

Bwarm

This app controls intelligent heated bedding to personalize your sleep environment. Adjust temperatures remotely, set custom schedules for different sleep phases, and enjoy hands-free voice control for optimal comfort.

Highlights
  • Remote control of heated bedding
  • Personalized sleep temperature programs
  • Voice assistant integration
  • Programmable sleep time blocks
  • Independent zone control
  • Smart preheating functionality
Read full description

Bwarm is the intelligent warmth system that delivers the perfect temperature to enhance your sleep. It personalizes your warmth preferences at every point of your sleep cycle. CONTROL ANYWHERE Operate your heated bedding anytime, from anywhere, using the Bwarm® app, voice assistants, or the intuitive touchscreen controller. VOICE CONTROL Set personalized schedules and temperature preferences with Bwarm. Use voice-enabled devices for hands-free operation—even in the dark. SLEEP TIME BLOCKS Divide your sleep into three programmable blocks. Set different temperatures and durations for each block to support natural thermoregulation—reducing disruptions and promoting deeper REM sleep. PERSONALIZED PROGRAMS SmartTherma creates a custom profile for each side of the bed. Both users can independently adjust zone settings and create personalized schedules—for enhanced comfort throughout the night. SMART PREHEAT Preheat your bedding remotely before bedtime, whether you're in another room or on your way home. After preheating, SmartTherma transitions seamlessly into your customized sleep program. POWER CONTROL Turn your bedding on or off through the app, with independent control of specific heating zones for a fully customized experience. Have questions? We're here to help. Contact us at: service@bwarmhome.com

Screenshots

Subsurface Maps Offline3 screens
Bwarm4 screens

Verdict

The call

The clearest difference is rating: Subsurface Maps Offline at 5.0 against Bwarm's 1.0. Subsurface Maps Offline also leads on update cadence (every 4 weeks vs every 13 months). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Subsurface Maps Offline holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Subsurface Maps Offline ships an update every 4 weeks, Bwarm every 13 months. The most recent releases landed on September 16, 2026 and August 9, 2026 respectively.

Scorecard2 real differences · 7 level
Subsurface Maps Offline versus Bwarm: the parameters behind the verdict, then further details
ParameterSubsurface Maps OfflineBwarm
PriceFreeFree
Rating5.0 (2 ratings) — better1.0 (1 ratings)
Number of ratings2 — better1
Update frequencyEvery 4 weeks — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size81 MB209 MB
Age rating4+4+
DeveloperBen HillSagacity International Trading llc

Customer experience

Subsurface Maps Offline

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bwarm

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Subsurface Maps Offline

No in-app purchases

None

Bwarm

No in-app purchases

Questions

Is Subsurface Maps Offline free?
Subsurface Maps Offline is free to download, with no in-app purchases.
Is Bwarm free?
Bwarm is free to download, with no in-app purchases.
Which has better reviews, Subsurface Maps Offline or Bwarm?
Subsurface Maps Offline is rated higher. Subsurface Maps Offline averages 5.0 out of 5 from 2 ratings, while Bwarm averages 1.0 from 1 ratings.
Do Subsurface Maps Offline or Bwarm have ads?
Neither Subsurface Maps Offline nor Bwarm shows ads.
Which is updated more often, Subsurface Maps Offline or Bwarm?
Subsurface Maps Offline ships an update every 4 weeks, and Bwarm every 13 months. Most recently, Subsurface Maps Offline was updated on September 16, 2026 and Bwarm on August 9, 2026.

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