Comparison

KapTrack vs Phx Underground

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

Head to head

About

KapTrack

Features

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KapTrack is the companion mobile app used with the KapTrack service. Conveniently add new entries to your custom forms. View and update existing responses. Offline mode allows you to create new entries and sync up later even when an internet connection is unavailable.

About

Phx Underground

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Phoenix Underground is a network of reproducing disciples and simple churches. It exists to equip, empower, and multiply a network of ordinary people in every relational network for the purpose of God’s Kingdom saturation in Phoenix. If you have a heart to see God’s Kingdom advanced where you live, work, learn, and play, please connect with us to continue learning more about how we can help you advance God’s Kingdom right where you are.

Screenshots

KapTrack4 screens

Phx Underground3 screens

Verdict

The call

The clearest difference is update cadence: KapTrack at every 2 weeks against Phx Underground's every 5 months. On price, ads, 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.

UpkeepUpdate frequency

KapTrack ships an update every 2 weeks, Phx Underground every 5 months. The most recent releases landed on June 21, 2026 and May 19, 2026 respectively.

Scorecard1 real difference · 5 level

KapTrack versus Phx Underground: the parameters behind the verdict, then further details
Parameter	KapTrack	Phx Underground
Price	Free	Free
Update frequency	Every 2 weeks — better	Every 5 months
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod, Apple TV — better
Requires iOS	13.4	13.4
Further details — not scored
Size	23 MB	47 MB
Age rating	17+	4+
Developer	CS3 Consultancy Corp	The Phoenix Underground Church Corporation

In-app purchases

None

KapTrack

No in-app purchases

None

Phx Underground

No in-app purchases

Questions

Is KapTrack free?

KapTrack is free to download, with no in-app purchases.

Is Phx Underground free?

Phx Underground is free to download, with no in-app purchases.

Do KapTrack or Phx Underground have ads?

Neither KapTrack nor Phx Underground shows ads.

Which is updated more often, KapTrack or Phx Underground?

KapTrack ships an update every 2 weeks, and Phx Underground every 5 months. Most recently, KapTrack was updated on June 21, 2026 and Phx Underground on May 19, 2026.