911 Dispatcher & CritiCall Preparation: Free Daily iPhone Practice

By Brain Preflight, the app developer · Version 1.7 · Published 18 October 2026

5 free sessions every day. Choose any exercise.

Practice accurate code checking, street-map decisions, memory and divided attention in short iPhone sessions. Brain Preflight groups these exercises in its 911 Dispatcher program.

Start without a purchase or subscription. Available in 5 languages: English, French, German, Spanish and Dutch.

Start your 5 free sessions

Which skills matter for a dispatcher assessment?

CritiCall’s published test descriptions include map reading, short-term memory, comparing letter-and-number sequences, numerical ability and multitasking. Its library also covers keyboard data entry and comprehension. CritiCall now describes both Classic modules and a newer 3D format, so use the assessment information supplied by your hiring agency to set your priorities. See the official test descriptions.

The publisher’s candidate guide says that specialist dispatcher knowledge is not required. It emphasizes following the test’s supplied instructions and decision rules. Use the official practice items to learn how each section works before the scored questions begin. Read the candidate preparation guide.

Dispatcher skills you can practice in Brain Preflight

The 911 Dispatcher program in Brain Preflight 1.7
Practice target	Exercise in the app	What you do
Perceptual accuracy	Same or not	Decide whether two codes match exactly. Look for transposed digits, missing characters and look-alikes such as 0 and O in a 90-second round.
Map reading and directions	Map reading	Locate landmarks, follow turns and find the shortest permitted route through one-way streets in a 2-minute round.
Attention to remembered detail	Street scene and 2-back memory	Recall details after a scene disappears and update information as new items arrive.
Divided attention	Psychomotor	Keep a tracking task going while handling another task at the same time.
Rule-based responses and calculation	Shapes & colors and Calculation grid	Apply a visual response rule quickly, then switch to timed arithmetic.

Try two original practice questions

These Brain Preflight examples focus on checking and navigation.

1. Check a code precisely

Are these two codes exactly the same?

RX7B-4826
RX7B-4862

Show the answer and method

Different. The final two digits are swapped: 26 versus 62. Compare positions rather than reading the overall shape. Both codes contain the same characters, which makes this easy to miss.

2. Follow a permitted route

A destination is two blocks east and one block north of you. Each block has equal length. The first street east is one-way in the opposite direction. The street north is open, and the next parallel eastbound street is open. What is the shortest valid route?

Show the answer and method

One block north, then two blocks east: 3 blocks. Check whether a route is permitted before counting its length. The direct-looking eastbound start is invalid because of the one-way restriction.

A five-session daily dispatcher practice routine

Same or not: begin with exact comparisons and notice which character positions you overlook.
Map reading: distinguish a heading question from a shortest-route question.
Street scene or 2-back memory: choose detailed recall or continuous memory updating.
Psychomotor: practice maintaining one task while responding to another.
Your choice: repeat the weakest task, or choose Calculation grid for arithmetic.

Review mistakes by cause: a transposition, a missed one-way arrow, a detail assigned to the wrong object or an interrupted tracking task. This gives you a specific target for the next session. Keep the same exercise for several sessions when you want to compare your progress.

Use the assessment’s own instructions

Before your test date, check your invitation for the assessment format, equipment and instructions. CritiCall’s applicant page links its candidate guide and sample keyboarding, proofreading and spelling tests. Keep those instructions alongside your daily practice plan. Open the official applicant resources.

Build your own daily practice

Choose 911 Dispatcher — CritiCall in Brain Preflight 1.7, or select exercises directly. Use your 5 free sessions each day to work on the skills you want to practice.

The catalogue contains 20 exercises. Installed exercises work offline. Follow your session history and the app’s practice levels. Optional paid Premium adds unlimited sessions, detailed diagnostics and the app’s own mock-exam mode.

Get Brain Preflight on iPhone

Questions about daily practice

Can I practice dispatcher skills for free on iPhone?

Yes. Brain Preflight offers 5 free sessions every day. Choose any exercise. Version 1.7 adds a 911 Dispatcher program with code comparison, map reading, memory, divided attention and calculation exercises.

How do I start the 911 Dispatcher program?

In Brain Preflight 1.7, choose 911 Dispatcher — CritiCall as your selection, enter your agency’s test date and pick an exercise. You can also choose exercises directly from the catalogue.

Do the exercises need an internet connection?

Installed exercises work offline. The app is available in 5 languages: English, French, German, Spanish and Dutch. Purchases and online services require a connection.

Sources

Official resources checked on 18 October 2026. The practice examples and routines above are original Brain Preflight material.

Independent guide by the Brain Preflight developer. These are original skill exercises, not the official CritiCall assessment. Brain Preflight is not affiliated with or endorsed by CritiCall or Biddle Consulting Group.