TPZ vs EventSafe
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TPZ
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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.
EventSafe
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This app is used at mass participation events such as charity walks, fun runs and bike races. It records and uploads your current location for use by the event operations personnel to assist in personal physical safety of all participants, and to aid event management.
Screenshots
Verdict
The clearest difference is update cadence: EventSafe at monthly 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
TPZ ships an update every 40 months, EventSafe monthly. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.
| Parameter | TPZ | EventSafe |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 40 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 14.2 — better |
| Further details — not scored | ||
| Size | 12 MB | 93 MB |
| Age rating | 4+ | 4+ |
| Developer | Brad Bowden | Graeme Vincent |
In-app purchases
TPZ
No in-app purchases
EventSafe
No in-app purchases
