Comparison

TPZ vs NotifyWA

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

Head to head

Tree Protection Zone

Subscribe to WA Emergencies

Free

🔧 Utilities

No ratingsView app →

About

TPZ

Read full description

The TPZ app provides a tree protection zone radius calculator to assist those involved in the care and management of urban trees when or where construction and development activities are proposed. By inputting the stem diameter or stem circumference measurement, the calculation will then determine the TPZ radius - outlining the area required for protection of the root plate and tree crown.

About

NotifyWA

Receive real-time push notifications for emergencies occurring in Western Australia. Stay informed about critical events impacting the region with timely updates delivered directly to your device.

Highlights

Emergency notifications
Western Australia focus
Push alerts
Real-time updates

Features

Read full description

Subscribe to push notifications about emergencies within Western Australia

Screenshots

TPZ3 screens

NotifyWA4 screens

Verdict

The call

The clearest difference is update cadence: NotifyWA at every 5 months against TPZ's every 40 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

TPZ ships an update every 40 months, NotifyWA every 5 months. The most recent releases landed on October 2, 2026 and September 27, 2026 respectively.

Scorecard1 real difference · 7 level

TPZ versus NotifyWA: the parameters behind the verdict, then further details
Parameter	TPZ	NotifyWA
Price	Free	Free
Positive reviews	—	100.0% of reviews
Update frequency	Every 40 months	Every 5 months — better
Ads	No	No
In-app purchases	No	No
Monetization	—	Free
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	15.6	15.0 — better
Further details — not scored
Size	12 MB	45 MB
Age rating	4+	4+
Developer	Brad Bowden	Caesia Software Pty Ltd

In-app purchases

None

TPZ

No in-app purchases

None

NotifyWA

No in-app purchases

Questions

Is TPZ free?

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

Is NotifyWA free?

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

Do TPZ or NotifyWA have ads?

Neither TPZ nor NotifyWA shows ads.

Which is updated more often, TPZ or NotifyWA?

TPZ ships an update every 40 months, and NotifyWA every 5 months. Most recently, TPZ was updated on October 2, 2026 and NotifyWA on September 27, 2026.