Tree Risk: Tree risk assessment software

The rules, with where each one came from.

Each date this app counts and each check it runs on a save is listed here with its source and the day we last read it. Where a rule lives in a paid standard, we cite it and keep the same facts in our own layout; we never copy the standard's text or forms.

6

sourced rules in this trade, each read on or after Oct 28, 2026.

Dates it counts

Reassessment due: the interval set in reassessment recommended in (months) from the date.From ISA Basic Tree Risk Assessment Form V3 (reassessment interval), checked Oct 28, 2026.
Rule

What it checks when you save

Suggest the overall tree risk rating as the highest part rating; the assessor may override with a written reason.From ISA Basic Tree Risk Assessment Form V3, checked Oct 28, 2026.
Warns on save
The field record is data collection; the client receives a separate report that summarizes it and adds recommendations, limitations and credentials.From ISA Basic Tree Risk Assessment Form V3 (footer note), checked Oct 28, 2026.
For reference
TRAQ certificates earned in the updated program are valid for 7 years; certificates earned or renewed under the prior program are valid for 5. After expiry, a new certificate requires the full program, since the renewal program is discontinued.From ISA: Upcoming Programmatic Changes to the ISA TRAQ Credential, checked Oct 28, 2026.
Warns on save
Fills in Likelihood of failure and impact, from likelihood of failure and likelihood of impact.From ISA Basic Tree Risk Assessment Form V3, Matrix 1, checked Oct 28, 2026.
Computed
Fills in Risk rating of part, from likelihood of failure and impact and consequences.From ISA Basic Tree Risk Assessment Form V3, Matrix 2, checked Oct 28, 2026.
Computed

Asked, and answered from the rule.

How is a tree risk rating worked out from the two ISA matrices?

Suggest the overall tree risk rating as the highest part rating; the assessor may override with a written reason.From ISA Basic Tree Risk Assessment Form V3, checked Oct 28, 2026.
The app fills in Likelihood of failure and impact, from likelihood of failure and likelihood of impact.From ISA Basic Tree Risk Assessment Form V3, Matrix 1, checked Oct 28, 2026.
The app fills in Risk rating of part, from likelihood of failure and impact and consequences.From ISA Basic Tree Risk Assessment Form V3, Matrix 2, checked Oct 28, 2026.

How long is the ISA TRAQ credential valid after the 2025 program update?

TRAQ certificates earned in the updated program are valid for 7 years; certificates earned or renewed under the prior program are valid for 5. After expiry, a new certificate requires the full program, since the renewal program is discontinued.From ISA: Upcoming Programmatic Changes to the ISA TRAQ Credential, checked Oct 28, 2026.

When the next one is due.

The same count the app keeps on every record, here without an account.

Free tool: next due date

DateReassessment recommended in (months)Enter the date and the next one appears here.

From ISA Basic Tree Risk Assessment Form V3 (reassessment interval), checked Wed, October 28, 2026.

What it keeps for you.

Tree

Tree number or tag, Species (common), Species (botanical), DBH, Height, and more.

Assessor

Name, ISA certification number, TRAQ program version, TRAQ expiry.

Assessment

Assessor, Level, Date, Time frame, Time frame unit, and more.

Target

Target number, Description (one target per line), Target zone, Occupancy rate.

Failure mode

Tree part, Failure type, Part size, Fall distance, Load on defect, and more.

Mitigation option

Mitigation option, Residual risk, Priority.

What your client receives.

The tree risk field record, as the app issues it the moment the assessment is saved: signed, dated and frozen, with what is next due. This one is filled with invented records so you can read it before you sign up.

Building owners read every report filed to them in one binder, free.

Sample Inspection Co. (fictional) · Tree Risk

Tree risk field record

TA-4100

Tree

Tree number or tag: TA-4100
Species (common): Species (common) 1
Species (botanical): Species (botanical) 1
DBH: 1 in

and 3 more fields

Assessment

Assessor: Avery Lund
Level: Level 1 limited visual
Date: Sep 11, 2026
Time frame: 2

and 12 more fields

Target

Target number	Description (one target per line)	Target zone	Occupancy rate
2	Description (one target per line) 1	Within drip line	Rare
6	Description (one target per line) 26	Within 1x height	Occasional

Failure mode

Tree part	Failure type	Part size	Fall distance	Load on defect	Likelihood of failure
Branches	Failure type 1	Part size 1	Fall distance 1	Low	Improbable
Trunk	Failure type 26	Part size 26	Fall distance 26	Medium	Possible

Tables

Lookup results appear on each record above.

Mitigation option

Mitigation option	Residual risk	Priority
Mitigation option 1	Low	2
Mitigation option 26	Moderate	6

Assessor

Name: Avery Lund
ISA certification number: IS-4100
TRAQ program version: Prior program (5-year term)
TRAQ expiry: Apr 29, 2027

Signature

Not signed in the app; signed on paper if at all.

What Tree Risk costs.

Free

$0

25 trees
1 person

Solo

$9 a monthFounders price; list ~~$19~~

2,000 trees
2 people

Crew

$24 a monthFounders price; list ~~$49~~

10,000 trees
10 people

Company

$49 a monthFounders price; list ~~$99~~

50,000 trees
25 people

All-Access

$74 a monthFounders price; list ~~$149~~

50,000 trees
25 people
The same limits in every trade

Join in the first 30 days and you pay half, for life. Export everything on every plan.

Your trade

Tell us what your inspector asks for, and we will build it into Tree Risk.

Open your free register Write to us