Comparison

Rocket Recovery vs Cedarfalls Slips

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

Head to head
About

Rocket Recovery

Simulate rocket launches to predict altitude, speed, and landing location. Optimize your rocket, motor, and recovery device choices based on detailed performance data and current weather conditions. Log your launch details for comprehensive tracking.

Highlights
  • Rocket launch simulation
  • Performance data (altitude, velocity, time)
  • Motor and recovery device selection
  • Weather condition integration
  • Launch pad and guide rail adjustments
  • Comprehensive launch logging
  • Customizable recovery devices
Features
Read full description

How high will my rocket go? Where did my rocket go? Do I have a big enough area to launch? Should I launch in these weather conditions? Which motor should I use? Which parachute? Should I use a streamer? These are all questions that Rocket Recovery helps answer. Rocket Recovery is a rocket launch simulator that lets you choose your rocket, your motor, your recovery device, and see how high, how fast and how far your rocket will go. Learn whether your parachute will deploy while your rocket is still climbing. See how fast it will be moving when it leaves the launchpad. Performance. Rocket Recovery gives you data on the rocket's velocity at various times, the expected altitude, the altitude when the parachute, or other device, deploys, time of the flight, how far it goes, where it is expected to land on a map. Rocket Recovery also warns you if you are too slow off the guide rail or have too much weathercocking. Both of these are dangerous situations. Rocket Recovery will sample the data 100 times per second to give you the best, most accurate flight simulation on an iPhone or iPad. This is important when you are using motors that burn for less than a second. Rocket Recovery has a full inventory of rocket motors with the tested thrust data built in to the app. This data allows Rocket Recovery to know how much thrust a motor is outputting in that brief moment. It can also determine how much the motor weighs, since the lighter the rocket, the more the thrust accelerates it. As new motors become available, they are added to the inventory. If you find a motor missing, just let us know. Rocket Recovery allows you to use motors up to a "C" impulse class. To use larger motors, you will need to subscribe to Rocket Recovery Pro. Using the current weather conditions, you will get the most accurate simulations possible. Wind speed and direction are simply not enough. To get it right, you need to know the temperature, humidity, air pressure, and dew point. All of this will affect your rocket's flight characteristics. Rocket Recovery fetches the weather data for you. You can also change the wind conditions simply and easily. If you are at a launch site with on location wind data, you can use that instead for even more accuracy. You can also have an inventory of different recovery devices from parachutes to streamers. You can also create your own in different shapes, sizes and materials. All of this affects the performance of the rocket and its recovery. When it is time to launch, you can adjust the height of the guide rail as well as the angle of the launch pad, either into the wind or away from it. This helps determine the best launch metrics for the conditions. There is full logging built in that starts with the performance data, any of which can be edited, and creates a log that tracks the weather, the exact rocket setup, the launch pad setup, the flight, the recovery, the performance, and any notes you wish to keep. It is truly comprehensive. Rocket Recovery Pro: Rocket Recovery Pro, is an additional subscription that allows you to create an inventory of more than one rocket. Once you create a rocket, it is yours to keep in the app until you decide to delete it. Even if your subscription ends, your rockets remain. You won't be able to create more, but you won't lose any. Rocket Recovery Pro is also required if you wish to create multistage rockets. Again, you will not lose the rocket if the subscription ends, but you cannot create more. Lastly, Rocket Recovery Pro is required for you to use motors up to a “G” rating for your mid power launches.

About

Cedarfalls Slips

Digitally store and access your drag racing time slips. Record density altitude to predict future race times. Access qualification, pairing, and ladder reports all within the app.

Highlights
  • Digital drag racing time slips
  • Density altitude recording
  • ET prediction
  • Qualification reports
  • Pairing reports
  • Ladder reports
Features
Read full description

Use our app to view your Drag Racing Time Slips! Our app also record your density altitude at the time of your race so you can use the data to predict your next ET dial. No more paper to go through, all your racing time slips in the palm of your hand using your iPhone or iPad! Access all the qualification, pairing and ladder reports using our TimeSlip app! This app can be used at the Cedar Falls Motorsports Park. You can review our "Terms of Use" here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ You can review our "Privacy Policy" here: https://www.dynogeeks.com/privacy.html

Screenshots

Rocket Recovery4 screens
Cedarfalls Slips4 screens

Verdict

The call

The clearest difference is review sentiment: Cedarfalls Slips at 100% against Rocket Recovery's 57%. Cedarfalls Slips also leads on rating (5.0 vs 3.1) and update cadence (every 10 months vs every 32 months). Rocket Recovery's advantage is ratings volume (8 vs 2). On price, ads, in-app purchases and monetization model 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. Rocket Recovery sells 3 in-app purchases, starting at $0.49 per month and Cedarfalls Slips sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Cedarfalls Slips holds the better App Store score, 5.0 against 3.1. Both are backed by a comparable volume of ratings — 8 and 2 respectively. Written reviews point the same way: 57% of Rocket Recovery's written reviews are positive against 100% of Cedarfalls Slips's.

UpkeepUpdate frequency

Rocket Recovery ships an update every 32 months, Cedarfalls Slips every 10 months. Both last shipped on November 3, 2026.

Scorecard5 real differences · 5 level
Rocket Recovery versus Cedarfalls Slips: the parameters behind the verdict, then further details
ParameterRocket RecoveryCedarfalls Slips
PriceFreeFree
Rating3.1 (8 ratings)5.0 (2 ratings) — better
Positive reviews57.1% of reviews100.0% of reviews — better
Number of ratings8 — better2
Update frequencyEvery 32 monthsEvery 10 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.6 — better
Further details — not scored
Size15 MB19 MB
Age rating4+4+
DeveloperBryan MarshallStephan Monette

Customer experience

Rocket Recovery

All ratings8 ratings
Positive37.5%
Neutral25.0%
Negative37.5%
Written reviews7 reviews
Positive57.1%
Neutral0.0%
Negative42.9%

Cedarfalls Slips

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Rocket Recovery

Subscriptions3
  • 1 Month with 2 Week Trial14 Days trial$0.491 Month
  • 6 Month with 2 Week Trial14 Days trial$1.496 Months
  • Annual with 2 Week Trial14 Days trial$2.491 Year
2 purchases

Cedarfalls Slips

Subscriptions2
  • Cedarfalls Premium Access$0.991 Month
  • Cedarfalls Sharing Access$4.991 Month

Questions

Is Rocket Recovery free?
Rocket Recovery is free to download, with in-app purchases available.
Is Cedarfalls Slips free?
Cedarfalls Slips is free to download, with in-app purchases available.
Which has better reviews, Rocket Recovery or Cedarfalls Slips?
Cedarfalls Slips is rated higher. Rocket Recovery averages 3.1 out of 5 from 8 ratings, while Cedarfalls Slips averages 5.0 from 2 ratings.
Do Rocket Recovery or Cedarfalls Slips have ads?
Neither Rocket Recovery nor Cedarfalls Slips shows ads.
Which is updated more often, Rocket Recovery or Cedarfalls Slips?
Rocket Recovery ships an update every 32 months, and Cedarfalls Slips every 10 months. Most recently, Rocket Recovery was updated on November 3, 2026 and Cedarfalls Slips on November 3, 2026.

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