Comparison

Fire Pump Operator vs Time Grid

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

Head to head
About

Fire Pump Operator

This app assists fire pump operators in calculating engine pressure using a standard formula. It allows for the addition of multiple friction losses, appliances, and elevations, and offers the ability to save and modify entries. Users can also adjust default coefficients and access other relevant calculators.

Highlights
  • Engine Pressure calculation
  • Add friction losses, appliances, elevations
  • Save and modify entries
  • Adjust IFSTA coefficients
  • Head Pressure calculator
  • NFA Formula calculator
Features
Read full description

New for 2026! Fire Pump Operator puts the fireground hydraulics you rely on into one fast app built for driver/operators, engineers, and firefighters working toward a pump certification. Stop second-guessing the math on the panel. Enter your numbers, get the answer, and understand the "why" behind it with plain-language reference built alongside every tool. CALCULATORS FOR THE PANEL - NFA and Iowa rate-of-flow fire flow estimates - Head pressure and elevation gain/loss - Friction loss and engine pressure - Nozzle reaction - Horizontal and vertical reach (solid stream) - Master stream and large-flow support - Standpipe and high-rise operations - Relay pumping - Tender/tanker shuttle operations - Foam and CAFS LEARN THE "WHY," NOT JUST THE ANSWER Every calculator is paired with a clear explanation of the concept behind it: engine pressure (EP), nozzle pressure (NP), friction loss (FL), appliance loss, and the coefficient formula. Ideal for studying before a promotional exam or refreshing between calls. SHARPEN YOUR KNOWLEDGE Work through quiz drills that test the formulas and concepts a pump operator is expected to know cold, and review your history to see where to focus next. APPARATUS AT YOUR FINGERTIPS Browse apparatus profiles and specs so pump ratings and equipment details are one tap away on shift. BUILT FOR THE FIREHOUSE - Save unlimited favorites for the tools you reach for most - Optional daily knowledge notifications to keep concepts fresh - Clean, high-contrast interface designed to be read fast on the apparatus FIRE PUMP OPERATOR PRO Pro unlocks every calculator, full quiz drills, complete apparatus profiles, unlimited favorites, and daily knowledge notifications. Start with a free trial, then continue monthly or save with an annual plan. Trial length and pricing are shown in the app before you subscribe. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. This app is a training and reference tool. Always follow your department's SOPs, your officer's direction, and manufacturer specifications on the fireground. LEGAL Terms of Use (EULA): https://digitaltrainingsystems.io/terms.html Privacy Policy: https://digitaltrainingsystems.io/privacy.html

About

Time Grid

Visualize the passage of time with expressive Home Screen widgets. Track daily, weekly, monthly, and yearly progress, or monitor custom milestones. Offers a variety of unique visual styles to represent your time at a glance.

Highlights
  • Home screen widgets for time visualization
  • Track daily, weekly, monthly, yearly progress
  • Custom date range tracking
  • Life progress based on birthday
  • Multiple unique widget styles
  • Personalizable mottos and colors
Features
Read full description

See time take shape, one moment at a time. Time Grid turns the passage of time into clear, expressive Home Screen and Lock Screen widgets. Follow the rhythm of your day, keep an important milestone in view, or take a longer view of life. • Track progress through today, this week, this month and this year. • Set a custom start and end date for an exam, a trip or another meaningful chapter. • See life progress based on your birthday and a lifespan you choose. • Explore Hourglass, Waxing Moon, Sphere, rings, dots and more. Waxing Moon represents time progress rather than astronomical moon phases. • Personalize small and medium widgets, preview your designs and save them. • Add a personal motto to medium widgets, using a built-in phrase or your own words. Dot widgets for the day, week, month and year are free. Time Grid Pro unlocks life progress, custom date ranges and all premium styles. Choose a weekly or yearly subscription, or a one-time lifetime purchase. Existing lifetime purchases remain valid. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel subscriptions in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Fire Pump Operator4 screens
Time Grid4 screens

Verdict

The call

The clearest difference is review sentiment: Time Grid at 100% against Fire Pump Operator's 0%. Time Grid also leads on update cadence (every 5 days vs every 6 weeks) and monetization model (free with in-app purchases vs paid). Fire Pump Operator's advantage is iOS requirement (15.0 vs 17.0). 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. Fire Pump Operator sells 2 in-app purchases, starting at $1.99 per month and Time Grid sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Fire Pump Operator ships an update every 6 weeks, Time Grid every 5 days. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
Fire Pump Operator versus Time Grid: the parameters behind the verdict, then further details
ParameterFire Pump OperatorTime Grid
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings—1 — better
Update frequencyEvery 6 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size48 MB17 MB
Age rating4+4+
DeveloperDigital Training Systems Incorporated佳宇 刘

Customer experience

Fire Pump Operator

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Time Grid

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Fire Pump Operator

Subscriptions2
  • Fire Pump Operator Pro7 Days trial$1.991 Month
  • Fire Pump Operator Pro7 Days trial$19.991 Year
1 purchases

Time Grid

One-time1
  • Time Grid Pro Lifetime$3.99

Questions

Is Fire Pump Operator free?
Fire Pump Operator is free to download, with in-app purchases available.
Is Time Grid free?
Time Grid is free to download, with in-app purchases available.
Do Fire Pump Operator or Time Grid have ads?
Neither Fire Pump Operator nor Time Grid shows ads.
Which is updated more often, Fire Pump Operator or Time Grid?
Fire Pump Operator ships an update every 6 weeks, and Time Grid every 5 days. Most recently, Fire Pump Operator was updated on October 24, 2026 and Time Grid on October 24, 2026.

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