Comparison

PC2 DLE vs HoldCalcPro

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

Head to head
About

PC2 DLE

This application implements a specialized take-off and landing procedure for offshore helicopter operations on helidecks. It enhances safety by minimizing exposure risks during engine failures and routine flights, while remaining simple and repeatable for pilots.

Highlights
  • Offshore helideck take-off/landing procedure
  • Minimizes engine failure exposure
  • Quantifies exposure time by weight
  • Enhances safety in routine operations
  • Simple and repeatable procedure
  • Compliant with aviation regulations
Read full description

Airbus Helicopters has defined a new take-off and landing procedure for offshore operations on/to helidecks called PC2 DLE. This procedure is currently implemented on the EC225 LP MAKILA 2A & 2A1, AS365 N3, EC155 B1 and AS332 models. For the AS332 models, download the eApp H215 Flight Perfo For the EC225 models, download the eApp H225 Flight Perfo For the AS365 N3 and EC155 B1, use this application This procedure is characterized by: − PC2 offshore classical profiles including a low rotation point (RP) which is also in effect the take-off Decision Point (TDP), − Exposure time quantification depending on take-off and landing weight. PC2 DLE provides the operator with an enhanced level of safety by using a procedure which: − Minimizes the exposure in case of one engine failure while minimizing the other risks during routine operations, all engines operating (minimizes the risk of collision with obstacles in the helideck environment, the risk of loss of visual references, and avoids risks associated with potential additional flights if payload has to be reduced), − Is simple and repeatable, − Achieves a level of risk reduction relative to deck edge strike lower than the highest certification requirements (probability of 10-9 per flight hour for a single failure having catastrophic consequences) in case of one engine failure even at high OAT, − Achieves an exposure time relative to drop down (risk of sea strike) much lower than 9 seconds in most conditions. This exposure time can be set to zero seconds with a weight reduction, − Needs minimal additional training (it uses similar procedures to those that pilots have been using for decades). The PC2 DLE procedure is compliant with the JAR-OPS 3 “PC2 Enhanced” (PC2e) as well as with the EASA Air Operations Regulation (EASA-OPS), Part CAT (Commercial Air Transport) which apply from 28 October 2012.

About

HoldCalcPro

This app calculates precise headings and times for flight holding patterns and entry procedures. It offers visual and textual representations of the procedure, aiding pilots in understanding and executing them correctly. Features include synchronized views and playback for detailed analysis.

Highlights
  • Precise heading and time calculations
  • Visual graph of holding pattern
  • Textual step-by-step instructions
  • Simulated cockpit PFD view
  • Synchronized multi-view playback
  • Wind direction and speed indicator
Features
Read full description

HoldCalcPro calculates the precise headings and times required to perform the proper entry procedure, and holding pattern. A simple input page allows a pilot to quickly enter the hold data with the onscreen keyboard and selector buttons, without the need to direct attention away from other tasks. Press "Calculate" to update the answer screens: a "Graph" for an overhead view, a "Text" page listing all the steps for the entry and the holding pattern, and a "PFD" page allowing the pilot to see what the indications in the cockpit would look like while performing each step. Once your hold has been calculated the graph view allows orienting the hold as it would be on a chart (North Up) or with the holding course toward the top of the screen. The graph view also includes a wind direction and speed indicator, a legend for a sense of scale, a North indicator, and the outbound heading and time required for the hold. A yellow, segmented line indicates the FAA's "70° line" for determining which entry procedure to use, and this line is drawn 1 NM to either side of the fix to help with the scale of the hold. The text view plainly shows the required entry procedure, and EVERY heading needed to complete the entire entry and hold, as well as the time for each segment. No other holding pattern calculator gives you the exact headings and times to fly for the entry procedure - there is no guesswork involved in getting you to line up with the inbound course exactly as you roll out of your turn. The PFD view allows the pilot to see what the indications will look like when the procedure is executed properly, helping instrument students compare the procedure to the instrument readings, and enhancing the development of situational awareness. Compare different views side-by-side (2 views on iPhone in landscape, and 3 views simultaneously on iPad) and use the playback controls to go through the hold second-by-second. The entry and hold are divided into segments, and as you move through the procedure (with the Play, Next, and Prev buttons) the graph view, text view, and PFD view show a synchronized movement through every second. This is the ultimate in building the visualization required for instrument flying, as the overhead view clearly shows where the plane is, as the PFD shows CDI movements, RMI needles, DME readout, and each segment can be played, and replayed. To get a quick preview of the entire hold, set the playback speed to 8X, and the playback to "Auto", and the entire procedure will sequence itself. For the seasoned professional pilot, the "answer" you want is in the upper-left corner of the graph view. No more adjusting the outbound time or heading to eventually get the "perfect" roll out on the inbound. Just do it the first time. This app is a must-have for instrument flight instructors hoping to help their instrument students develop the ability to turn holding instructions into action. The entry steps alone can help you perform flawless procedure turns that join the final approach course as you roll out on the required heading to track the final! While holding patterns are not usually done for entertainment, why increase your workload while there are more important things to consider (like: Where is the weather good? How long can I spend in this hold before "Bingo"? and, Are there alternates I've yet to consider?) Make your instrument flying more comfortable and enjoyable by giving yourself the opportunity to manage your flight, rather than play "guess-and-check" bracketing your outbound course and time.

Screenshots

PC2 DLE3 screens
HoldCalcPro4 screens

Verdict

The call

The clearest difference is review sentiment: HoldCalcPro at 100% against PC2 DLE's 40%. HoldCalcPro also leads on device support (4 vs 2) and iOS requirement (14.5 vs 17.4). PC2 DLE's advantage is price (Free vs $4.99). On update cadence, ads and in-app purchases 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

PC2 DLE is free to download; HoldCalcPro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 25 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
PC2 DLE versus HoldCalcPro: the parameters behind the verdict, then further details
ParameterPC2 DLEHoldCalcPro
PriceFree — better$4.99
Rating—5.0 (4 ratings) — better
Positive reviews40.0% of reviews100.0% of reviews — better
Number of ratings—4 — better
Update frequencyEvery 25 monthsEvery 25 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPadiPhone, iPad, iPod, Apple Watch — better
Requires iOS17.414.5 — better
Further details — not scored
Size70 MB2 MB
Age rating4+4+
DeveloperAIRBUS HELICOPTERSKingswell Productions

Customer experience

PC2 DLE

Written reviews5 reviews
Positive40.0%
Neutral0.0%
Negative60.0%

HoldCalcPro

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

PC2 DLE

No in-app purchases

None

HoldCalcPro

No in-app purchases

Questions

Is PC2 DLE free?
PC2 DLE is free to download, with no in-app purchases.
Is HoldCalcPro free?
HoldCalcPro costs $4.99, with no in-app purchases.
Do PC2 DLE or HoldCalcPro have ads?
Neither PC2 DLE nor HoldCalcPro shows ads.
Which is updated more often, PC2 DLE or HoldCalcPro?
PC2 DLE ships an update every 25 months, and HoldCalcPro every 25 months. Most recently, PC2 DLE was updated on October 20, 2026 and HoldCalcPro on October 24, 2026.

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