Comparison

PIDTune vs Ultra Boost Revo

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

Head to head
About

PIDTune

This utility calculates PID tuning parameters using the IMC method for various process and controller types. It allows for direct input of process gain or variable changes, with adjustable tuning aggression via a slider.

Highlights
  • IMC method for PID tuning
  • Calculates Kc, Ti, Td
  • Supports FO, SO, and I process types
  • Handles Parallel and Series controller types
  • Adjustable tuning aggression slider
  • Input process gain or variable changes
Features
Read full description

PID Tuner uses the IMC (Internal Model Control) method to calculate PID tuning parameters. I’ve tried a lot of tuning methods over the years and have found this one to be the best. The app is written for the iPad to show all the information on one page. The program calculates: PID Parameters: Controller Gain (Kc) Integral Time (Ti) Derivative Time (Td) For process types First Order with Dead Time (FO) Second Order with Dead Time (SO) Integrating or Long Time Constant with Dead Time (I) For controller types Parallel (non-interacting) c(s) = Kc (1 + 1/(Ti s) + Td s) Series (interacting) c(s) = Kc (Ti s + 1)/(Ti s)(Td s + 1) For controller modes PID PI You can either enter the process gain (Kp) directly or enter the changes in the controlled virable (CV) and manipulated variable (MV). Tuning aggression is adjusted using the slider to set the closed loop time constant to the process time constant ratio (λ/Ƭ). The closed loop time constant (λ) is the time the controller is expected to reach set point (plus the dead time (ϴ)). Setting the closed loop time constant to process time constant ratio (λ/Ƭ) to 1.0 will make the MV change to its final value and allow the process to settle out to the setpoint. Setting (λ/Ƭ) greater than 1.0 will give a slower responce. Setting (λ/Ƭ) less than 1.0 will cause the MV to make a larger change and then reduce to its final value. Tight tuning would be to set the close loop time constant to the dead time. Use the Integrating Process type (Ƭ = ∞) for both integrating processes or processes with long time constants. These processes use the maximum slope as the process gain. Tuning aggression for these processes is determined by setting the closed loop time constant to the dead time ratio (λ/ϴ). Once again, setting the closed loop time constat to the dead time gives tight control. References: “Probably the test simple PID tuning rules in the World,” Sigurd Skogestad, Jounal of Process Control, July 3, 2001 “Consider the generalized IMC-PID method for PID controller tuning of time-delay processes,” Y. Lee, S. Park, M. Lee, Hydrocarbon Processing, January 2006

About

Ultra Boost Revo

Read full description

Ultra Boost Revo New products from ECU = SHOP Application for display RPM CRP TURBO BOOST. MAP SPEED. Connect to the box wirelessly And has a mode to choose from 4 operating modes with AI Mode that automatically changes the operation mode Super advanced technology at a tangible price Guaranteed to increase horsepower up 30 - 50. Do not release smoke. 1 year warranty for the control box. order at www.facebook.com/ecushop.official or www.ecu-shop.com property - AI Mode operation system - control chang operation mode - shows the oil pressure from the sensor - Display mode - Show Rpm - Show Boost (Bar) - Show Air Flow (g/s) - Show Map/Air Flow (V.) - Show Acp ​​(%) - Show Speed ​​(GPS) - Show the installed car model - Show location and weather, air pressure, wind speed, temperature

Screenshots

PIDTune3 screens
Ultra Boost Revo3 screens

Verdict

The call

The clearest difference is price: Ultra Boost Revo at Free against PIDTune's $4.99. Ultra Boost Revo also leads on update cadence (every 2 months vs every 4 months) and iOS requirement (9.0 vs 15.0). On 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

Ultra Boost Revo is free to download; PIDTune costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PIDTune ships an update every 4 months, Ultra Boost Revo every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
PIDTune versus Ultra Boost Revo: the parameters behind the verdict, then further details
ParameterPIDTuneUltra Boost Revo
Price$4.99Free — better
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.09.0 — better
Further details — not scored
Size1 MB100 MB
Age rating4+4+
DeveloperRichard H StreetECU=SHOP

In-app purchases

None

PIDTune

No in-app purchases

None

Ultra Boost Revo

No in-app purchases

Questions

Is PIDTune free?
PIDTune costs $4.99, with no in-app purchases.
Is Ultra Boost Revo free?
Ultra Boost Revo is free to download, with no in-app purchases.
Do PIDTune or Ultra Boost Revo have ads?
Neither PIDTune nor Ultra Boost Revo shows ads.
Which is updated more often, PIDTune or Ultra Boost Revo?
PIDTune ships an update every 4 months, and Ultra Boost Revo every 2 months. Most recently, PIDTune was updated on November 2, 2026 and Ultra Boost Revo on November 3, 2026.

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