performify vs Collateral Appraisal
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
performify
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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: -Β 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/
Collateral Appraisal
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Tired of manually collecting property details for appraisals? Collateral Appraisal simplifies the process! Key Features: - Create & manage collateral information: Easily capture basic property details and photos directly on your phone. - Generate professional PDF reports: Present a well-organized report for appraisers with a few clicks. - Share reports easily: Share your generated PDF reports via email or other apps with ease.
Screenshots
Verdict
The clearest difference is in-app purchases: Collateral Appraisal at none against performify's 1. Collateral Appraisal also leads on iOS requirement (14.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. performify sells 1 in-app purchase, starting at $2.99 per month. Collateral Appraisal asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 4, 2026 and September 30, 2026 respectively.
| Parameter | performify | Collateral Appraisal |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad | iPhone, iPad, iPod β better |
| Requires iOS | 17.0 | 14.0 β better |
| Further details β not scored | ||
| Size | 95 MB | 57 MB |
| Age rating | 4+ | 17+ |
| Developer | Pascal Burlet | Chung-Wei Hung |
In-app purchases
performify
- AviatorPro1 Month trial$2.991 Month
Collateral Appraisal
No in-app purchases
Questions
Is performify free?
Is Collateral Appraisal free?
Do performify or Collateral Appraisal have ads?
Which is updated more often, performify or Collateral Appraisal?
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