Comparison

GPX Builder vs VBS UV

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

Head to head
About

GPX Builder

This utility app allows developers to simulate and record real-world GPS location data for testing purposes. Adjust location settings for accuracy and battery life, then export data as GPX or GeoJSON files. Includes carrier and connectivity data for comprehensive testing.

Highlights
  • Simulate GPS location data
  • Record real-world GPS tracks
  • Adjust location accuracy
  • Export as GPX or GeoJSON
  • Include carrier and connectivity data
  • Create custom test routes
Read full description

*Continued use of GPS running in the background can dramatically decrease battery life. Developing apps that require location services can be a challenge when the data you receive in the simulator is so much different than what a device receives in the real world. Are your location settings battery friendly enough to solve the problem you are working on or could you do with a little less accuracy? GPX Builder allows you to adjust the settings of the location services to match your project, then record real location data as you create your own test routes for your simulator. You can name each route and email the GPX data back to your development team. We now include carrier and connectivity data so you can generate GPX or GeoJSON files with real world data for unreliable connectivity. We hope this will help you to understand your user's experience better so you can create amazing features. You can export your location data as a GPX file or in GeoJSON format. Points are recorded at a rate of one per second to match the playback speed of the iOS Simulator and give more realistic results when simulating location data. You can still record raw data only by choosing that option in the settings.

About

VBS UV

This app provides UV-Index forecasts to help manage sun exposure. It offers a simple interface for users to check daily UV levels. More information about the VBS model is available online.

Highlights
  • UV-Index forecasts
  • Sun exposure management
  • Simple user interface
  • VBS model information link
Features
Read full description

The UI-Index app is a simple app to help us manage the sun exposure of our campers.​ For more information about this model of VBS, head to https://vbsonline.org

Screenshots

GPX Builder4 screens
VBS UV4 screens

Verdict

The call

The clearest difference is review sentiment: VBS UV at 100% against GPX Builder's 0%. VBS UV also leads on rating (5.0 vs 3.8) and ads (none vs shown). GPX Builder's advantage is ratings volume (4 vs 1) and iOS requirement (15.5 vs 26.0). On price, update cadence, 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

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

VBS UV holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 0% of GPX Builder's written reviews are positive against 100% of VBS UV's.

UpkeepUpdate frequency

GPX Builder ships an update every 2 months, VBS UV every 6 weeks. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

Scorecard6 real differences · 4 level
GPX Builder versus VBS UV: the parameters behind the verdict, then further details
ParameterGPX BuilderVBS UV
PriceFreeFree
Rating3.8 (4 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings4 — better1
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.5 — better26.0
Further details — not scored
Size7 MB6 MB
Age rating4+4+
DeveloperOurBigAdventure, LLCMark Spaulding

Customer experience

GPX Builder

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

VBS UV

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

GPX Builder

No in-app purchases

None

VBS UV

No in-app purchases

Questions

Is GPX Builder free?
GPX Builder is free to download, with no in-app purchases.
Is VBS UV free?
VBS UV is free to download, with no in-app purchases.
Which has better reviews, GPX Builder or VBS UV?
VBS UV is rated higher. GPX Builder averages 3.8 out of 5 from 4 ratings, while VBS UV averages 5.0 from 1 ratings.
Do GPX Builder or VBS UV have ads?
GPX Builder shows ads; VBS UV does not.
Which is updated more often, GPX Builder or VBS UV?
GPX Builder ships an update every 2 months, and VBS UV every 6 weeks. Most recently, GPX Builder was updated on October 24, 2026 and VBS UV on October 18, 2026.

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