# Subsurface Maps Offline vs Bwarm

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.

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

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.

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.

## The numbers

| Metric | Subsurface Maps Offline | Bwarm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/subsurface-maps-offline/id6654924764/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/bwarm/id6747585575/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 13 months |
| Monetization | Free | Free |
| Size | 81 MB | 209 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ben Hill](https://appshunter.io/developer/1645876200) | [Sagacity International Trading llc](https://appshunter.io/developer/1821879633) |

## What reviewers say

### Subsurface Maps Offline

[App page](https://appshunter.io/ios/app/subsurface-maps-offline/id6654924764)

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

**In-app purchases:** none


### Bwarm

[App page](https://appshunter.io/ios/app/bwarm/id6747585575)

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

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*