Comparison

performify vs SD360 W&B

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

Head to head
About

performify

Features
Read full description

performify! - Calculations derived from the manufacturer's AFMs. Reverse engineered mathematical equations so that you don't have to draw, interpolate or calculate yourself! - Efficient workflow in mind. Designed for the pilot to make quick decisions or play with the numbers! - Widgets! - Automatically derived parameters, based on location and local weather - Dark Mode! - Add a preferred margin to every calculation! - Add a favourite aircraft variant for every aircraft make, to get started quicker. - Currently supports landing and take-off performance calculations. More to come! - Currently supports a number of aircraft such as: - Antonov AN2 - Cessna 152, 172, 172 R&S - Piper PA28-181 - Robin DR400/140B, DR400/180 - Tecnam P2008JC - More to come! IMPORTANT: !! DO NOT USE FOR PLANNING PURPOSES !! Reason: performify is not a certified or approved application by any organization or authority. Please do not use this app for planning purposes. Always cross verify the results with your AFM! By downloading this app you confirm that you use all calculations AT YOUR OWN RISK. Always check with the AFM. The developer nor the publisher are responsible for any damage caused by the use of the calculations." Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

SD360 W&B

This utility app calculates an aircraft's center of gravity (CG) and ensures weight distribution is within safe limits. It displays critical weight information, including total aircraft weight, payload weight, and payload bulk percentage.

Highlights
  • CG calculation
  • Weight limit checks
  • Total weight display
  • Payload weight display
  • Payload bulk percentage
Features
Read full description

Calculates the CG of the airplane Ensures the weight in each compartment is within limits Displays the CG limits for the total weight of the airplane Displays airplanes total weight Displays payload total weight Displays payload bulk percentage

Screenshots

performify4 screens
SD360 W&B3 screens

Verdict

The call

The clearest difference is in-app purchases: SD360 W&B at none against performify's 1. SD360 W&B also leads on update cadence (fortnightly vs every 2 months) and iOS requirement (13.0 vs 17.0). On price 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. performify sells 1 in-app purchase, starting at $2.99 per month. SD360 W&B asks for nothing beyond the download.

UpkeepUpdate frequency

performify ships an update every 2 months, SD360 W&B fortnightly. The most recent releases landed on September 17, 2026 and June 8, 2026 respectively.

Scorecard3 real differences · 7 level
performify versus SD360 W&B: the parameters behind the verdict, then further details
ParameterperformifySD360 W&B
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 2 monthsFortnightly — better
AdsNo—
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size95 MB10 MB
Age rating4+4+
DeveloperPascal BurletSemere Tadesse

In-app purchases

1 purchases

performify

Subscriptions1
  • AviatorPro1 Month trial$2.991 Month
None

SD360 W&B

No in-app purchases

Questions

Is performify free?
performify is free to download, with in-app purchases available.
Is SD360 W&B free?
SD360 W&B is free to download, with no in-app purchases.
Which is updated more often, performify or SD360 W&B?
performify ships an update every 2 months, and SD360 W&B fortnightly. Most recently, performify was updated on September 17, 2026 and SD360 W&B on June 8, 2026.

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