iBal Rotary vs Encrypted Email
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iBal Rotary
This app helps helicopter pilots quickly calculate weight and balance for their aircraft. It supports numerous helicopter models and allows users to add custom aircraft configurations. The app provides graphical displays and can email mission manifests, aiding in compliance with aviation regulations.
- Supports numerous helicopter types
- Add custom aircraft configurations
- Graphical CG displays
- Email mission manifests
- Detects weight and CG problems
- Predefined load lists
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iBal Rotary is a dedicated Helicopter weight and balance app for iPhone, iPad, iPod and Mac. Designed from the ground up for professional and private helicopter pilots, it provides for quick and easy entry of loads and checks against type-specific weight, lateral and longitudinal CG limits, load station limits etc. Graphical displays, mission and manifest sent by email and much more. Online information, help and discussion at http://groups.google.com/group/ibal-help http://www.airspayce.com/airspayce/ibal Quick Reference Sheet http://www.airspayce.com/iBal/ReferenceSheet.pdf Features: Many types supported: See http://www.airspayce.com/airspayce/ibal/ibal-types-supported for detailed list of supported types and configurations. Robinson R22 Beta, BetaII, Alpha, HP, R44, R44 II, R66 Agusta A109AII, A109E, A119 and AW119 MK II Agusta Bell AB212 IFR Pax Agusta-Westland AW109SP, AW139 Bell 205A-1 and 205A-1 with STC SH5977NM, 204B, 206B3 Jet Ranger, 206L Long Ranger (L, L1, L3, and L4 models), 210, 222U, 230, 212, 407, 412, 427, 429, 430 Schweizer/Hughes 269C/300C, 333, 333M Hughes OH-6A Eurocopter AS350 B, BA, BA+, B1, B2, B3, D Squirrel, AS332, AS355 N, NP, F1 and F2 twin Squirrel AS365 N1, N2, N3 Dauphin, BK117 A-3, A-4, B, C-1, C+, EC120B Colibri, EC130 B4, EC135 P2+, EC130/H130 EC155 B,B1, EC225 LP Enstrom 280FX, 480B Boeing CH-47 Chinook Cabri G2 MD500D (369D), MD530F-Plus (369FF), MD600N, MD902 MBB105 LS A3 Sikorsky S-76A,A+,A++, S-76B, C, S-76C++, S-92A, UH-61A,L Blackhawk Add any number of your own aircraft, including preconfigured loads and photos of your own aircraft. Send completed CG Solutions (including manifest) and CG graphs to any email address (internet connection required) Configurable Name, BEW, longitudinal and lateral arms and photo for your own aircraft (from camera or photo roll where supported). Easy entry and adjustment of passengers, fuel, cargo and suspended loads. Displays CG for loaded and empty fuel, critical fuel loads with and without any suspended load. Detects and displays weight, longitudinal and lateral CG problems. Displays available load until limits will be exceeded. Displays weights, arms and CG solutions in graphical and tabular formats, with problem alerts. Support for optional Passenger names and Flight Details which appear on the CG solution spreadsheet and are transmitted when Send tapped. This supports new FAA rules requiring FAR Part 135 (Air Taxi) Operators to manifest every flight stage and for it to be transmitted back to base. Support for Predefined Loads: user definable list of commonly carried loads and their weights. Useful for EMS staff lists, oil rig personnel lists, common cargo items etc. List of predefined loads can be accessed from the load edit page to automatically enter the weight and description. The list can be customised to include any number of your own personnel names or freight descriptions plus the weight of each. Predefined loads can be added or removed from your list at any time, and will not be lost when you update iBal. Loads can be entered in your choice of suitable unit: kg, lbs, USGals, litres, stones (also fuel % in applicable types). Supports iPhone gestures: Drag passengers and cargo between stations Flick cargo and passengers off Zoom and scroll floorplans, graphs and load sheets Aircraft-specific Custom Load Stations, allowing you to add new or non-standard loading positions to your own aircraft. Displays helpful loading data, limits and hints. Optional Alert sounds and vibration for bad solutions for easy in-flight use. Configurable fuel SGs Supports Apple AirPrint, Retina, iOS 5 and later on iPhone, iPad, etc. Works with Aeronet http://www.aeronet.co.nz/ a world class maintenance, flight and duty tracking system. Allows operators to automatically update their Aeronet records with the flight details emailed by iBal. Reduces the time and cost of records compliance.
Encrypted Email
This secure email service offers end-to-end encryption and a private inbox, free from ads and AI training. Protect your communications with robust spam filters and organize your messages with folders and labels. It's a trusted, privacy-focused alternative for managing your email.
- End-to-end encryption
- No ads or inbox scanning
- Password-protected emails
- Spam, phishing, and tracker protection
- Offline mode
- Multiple account support
- Hide-my-email aliases
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Proton Mail is the encrypted email app trusted by over 100 million people. Get a secure, private email address protected by end-to-end encryption, with no ads, no AI training and no inbox scanning. Based in Switzerland and protected by some of the world's strictest privacy laws. Your inbox, your rules. Why choose Proton Mail for secure email • Free encrypted email: create a free @proton.me or @protonmail.com email address • Password-protected emails: send encrypted emails to anyone, even people who don't use Proton • Spam, phishing and tracker protection: with built-in spam filters, phishing alerts and email tracker blocking • Organize your inbox: with folders, labels and simple swipe gestures • Offline mode: read, write and organize emails offline, and everything syncs when you're back online • Private categories: keep important emails in focus with automatic, private categories • Multiple accounts: switch between multiple Proton Mail accounts in one secure email app • Get up to 1 GB of free email storage, or up to 15 GB with Mail Plus Secure email with encryption Everything in your inbox is stored with zero-access and end-to-end encryption, emails between Proton users can only be read by you and your recipient. Proton Mail can't read or scan your messages. Our open-source apps use OpenPGP encryption and are independently audited. A private alternative to temp mail Need a temp mail address for a sign-up? Create up to 10 free hide-my-email aliases on the web. They forward to your inbox, keep your real email address private, and can be disabled or deleted at any time. Switch to secure email Easy Switch moves your email to your new secure inbox with no manual exporting or importing. Connect Gmail to use your Gmail address alongside your Proton email in one secure inbox, or set up auto-forwarding from as many Gmail accounts as you like. The Wall Street Journal: "Proton Mail offers encrypted email, which makes it virtually impossible for anyone to read it except the sender and the recipient." How can Proton Mail be free? We believe everyone deserves private email. Free accounts are funded by our community of paid subscribers. Upgrade for more email storage, more addresses and custom domains. Follow Proton for the latest news and offers: Facebook: /proton X: @protonprivacy Reddit: /protonmail Instagram: /protonprivacy Learn more: https://proton.me/mail Our open-source code: https://github.com/ProtonMail
Screenshots
Verdict
The clearest difference is price: Encrypted Email at Free against iBal Rotary's $17.99. Encrypted Email also leads on update cadence (every 10 days vs every 2 months) and ratings volume (51K vs 25). iBal Rotary's advantage is review sentiment (83% vs 46%) and in-app purchases (none vs 4). On ads 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
Encrypted Email is free to download; iBal Rotary costs $17.99 up front. Encrypted Email sells 4 in-app purchases, starting at $5.99 per month. iBal Rotary asks for nothing beyond the download.
Encrypted Email holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Encrypted Email has 51K ratings behind it against 25, so its average is the more settled of the two. Written reviews complicate that: 83% of iBal Rotary's written reviews are positive against 46% of Encrypted Email's, so the app with the better star average is not the one people write more warmly about.
iBal Rotary ships an update every 2 months, Encrypted Email every 10 days. The most recent releases landed on November 10, 2026 and November 12, 2026 respectively.
| Parameter | iBal Rotary | Encrypted Email |
|---|---|---|
| Price | $17.99 | Free — better |
| Rating | 4.5 (25 ratings) | 4.8 (51K ratings) — better |
| Positive reviews | 83.1% of reviews — better | 46.3% of reviews |
| Number of ratings | 25 | 51K — better |
| Update frequency | Every 2 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Best chart rank | — | #71 — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 17.2 — better |
| Further details — not scored | ||
| Size | 29 MB | 315 MB |
| Age rating | 4+ | 4+ |
| Developer | AirSpayce | Proton AG |
Customer experience
iBal Rotary
Encrypted Email
User reviews
iBal Rotary
From 25 App Store ratingsWhat we love
- 🚀 Fast and accurate calculations
- 👍 User-friendly and simple interface
- 🛠️ Excellent customer support
- ✅ Reliable and functional
- 💡 Versatile and complete
Room to improve
- 💰 Repurchase required for new versions
- 🔊 Annoying sounds
- 👎 Poor user interface
- 📉 Outdated data
- 🤷♂️ Stations cannot be deleted
Encrypted Email
From 51K App Store ratingsWhat we love
- 🚀 Smooth performance
- 🔒 Excellent security and privacy
- 👍 Clean and intuitive interface
- 💡 Expanding ecosystem of Proton services
Room to improve
- 🐛 Occasional crashes and bugs
- ⏱️ Slow email loading times
- 📝 Lacking advanced email management features
- 💰 Expensive paid plans
Bugs and requests
iBal Rotary
Reported bugs
4 issues- App crashes on iPhone 4 since latest update
- Choose photo function does not work on iPad Mini Retina
- Math is sometimes wrong
- Rounding of aircraft values is annoying
Requested features
10 requests- Add B3E aircraft
- Ability to modify aircraft data
- Add BK-117 D2/D3 (H145) to aircraft list
- Add Bell 505 to aircraft library
- Input fuel burn to calculate flight duration estimate
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- Adjustable minimum fuel
- Add AS 350 B3 to list
- Simplify PDF/printed page to one page
- Remove sound features
- Allow building own configuration with lateral c of g
Encrypted Email
Reported bugs
3 issues- Login issues and lost email data
- Unreliable push notifications
- Inconsistent user experience between app and web
Requested features
4 requests- Conversation threading and email previews
- Customizable notification sounds
- Offline email access
- Improved syncing across devices
In-app purchases
iBal Rotary
No in-app purchases
Encrypted Email
- Mail Plus 1 month$5.991 Month
- Unlimited 1 month$14.991 Month
- Mail Plus 12 months$47.901 Year
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- Unlimited 1 year1 Year trial$119.001 Year









