# SmartSky OPT

> Flight operations app for takeoff, landing, and weight/balance calculations. (iPhone/iPad app by SZ RTSAI, OOO.)

- Source: https://appshunter.io/ios/app/smartsky-opt/id1381528501 (this page in markdown: same URL + `.md`)
- Developer: [SZ RTSAI, OOO](https://appshunter.io/developer/1601178625)
- Category: Navigation, Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 14 MB
- Languages: American English
- Released: 2018-05-23
- Data updated: 2026-09-03
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/smartsky-opt/id1381528501/reviews.md

## What is SmartSky OPT?

SmartSky OPT is application for flight operations are now compatible on iOS devices.
User-friendly interface provides straightforward access to takeoff, landing and weight and balance computations, according to the type of operations and aircraft loading. The application allows end users being more autonomous and accurate in the calculation.

## Key features

- Flight operations compatibility
- Takeoff computations
- Landing computations
- Weight and balance calculations
- User-friendly interface
- Aircraft loading support

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/smartsky-opt/id1381528501/reviews.md

### 2/5 — Версия

*2023-04-18, version 1.3.7*

Сделайте полноценную версию на телефон, как на ipad!!!!!!!!!!!!!

### 1/5 — Плохая неудобная программа

*2019-08-24, version 1.1.4*

Нет избранного,нет сохранённых данных,вылетает если нажмёшь Share прежде чем Compute ,при попутном ветре считает скорость как при встречном,абсолютно не подходит для обеспечения полетов

### 1/5 — Не работает

*2019-08-01, version 1.1.4*

Приложение не работает, невозможно ввести никакие данные.

## Frequently asked questions about SmartSky OPT

### What is SmartSky OPT used for?

SmartSky OPT is an application designed for flight operations. It provides tools for takeoff, landing, and weight and balance computations, making flight planning more autonomous and accurate.

### Is SmartSky OPT free to use?

Yes, SmartSky OPT is available for free. There are no costs associated with downloading or using its core features for flight operations calculations.

### What devices support SmartSky OPT?

SmartSky OPT is compatible with iOS devices, including iPhone, iPad, and iPod. It is designed to run on these Apple platforms.

### How often is SmartSky OPT updated?

The latest version of SmartSky OPT is 3.0.0, last updated on March 27, 2026. This indicates a recent update, suggesting ongoing development and support for the application.

### What is the age rating for SmartSky OPT?

SmartSky OPT has an age rating of 4+. This means it is suitable for users of all ages, with no specific content restrictions.

### Does SmartSky OPT have ads?

No, SmartSky OPT does not contain advertisements. Users can expect an uninterrupted experience while performing flight calculations.

### Can SmartSky OPT be used offline?

The provided information does not specify offline capabilities for SmartSky OPT. It is recommended to check the app store listing or developer notes for details on offline functionality.

## Version history (last 5 releases)

### 3.1.1 — 2026-09-01

- Fixed takeoff mass calculation on a wet runway.
- Fixed takeoff calculation from a taxiway intersection.
- Takeoff results now show the parameters of the obstacle limiting the takeoff mass.

### 3.1.0 — 2026-08-18

- Added Import W&B button on the TakeOff and Landing pages — one-tap transfer of aircraft type, weight, and %MAC from the W&B calculation results.
- Added Torque calculation for ATR 42/72: OBJ TQ and RTO TQ for takeoff, GA TQ for landing — shown in calculation results and the printed form.
- White Bug and Red Bug speeds are now included in the printed (PDF) output alongside the other takeoff and landing speeds.
- Weather input fields (wind, temperature, pressure) are now integer-only; decimals are kept only for QNH in inHg.
- Refined Vga speed calculation: Vmhb minimums are applied per flap configuration in normal and icing conditions.
- Fixed a 1-kt overestimation of ATR 72 speeds based on Vmhb.
- Unified wind factor (5–15 kt), speed and weight rounding — identical values in the interface, report, and calculation model.
- For ATR 72, landing distance calculation is selected by LDTA availability: without LDTA, Actual Landing Distance (ALD) is used.
- Fixed ATR 42 White Bug and Red Bug calculation in icing conditions per approved OPS DATA rules.
- ATR 72 calculations at the temperature, weight, and AFM range limits: instead of a zero result, the boundary value is used with a warning.
- Eliminated non-monotonic V2 behavior with increasing weight (ATR 72); added an automated test across the full weight grid.
- Fixed issues from Utair feedback: Vref+10 behavior and related landing distance calculations.

### 3.0.3 — 2026-06-11

- Carry-on CG contribution calculated by the actually occupied section seats (instead of the zone-average coordinate) — correct index and %MAC for non-uniform seating.
- Hand baggage mass is shown as a separate line in the W&B sheet and is no longer added to the PASSENGER line.
- LoadSheet TIME field reflects the release time (preparation for print/send), not the CG calculation start time.
- Removed the non-informative Version item from the LoadSheet.
- Correct wind-speed unit selection in the Takeoff section when the input field is empty — the value is preserved without false conversion.
- MEL items defined by graphs/nomograms are accounted for in the maximum takeoff mass calculation (AFM compliance).
- Eliminated non-monotonic takeoff mass jumps (±2 t) when only pressure changes — takeoff calculation stabilized.

### 3.0.2 — 2026-05-05

- Correct MTOW limit reason: WAT Limit separated from Obstacle Clearance.
- Refined carry-on coordinate calculation for accurate %MAC.
- Fuel validation: blocks values exceeding tank capacity.
- W&B printout warning and block when weight or balance is out of limits.
- Auto-reset of passenger and baggage data on crew code change.
- Updated W&B layout: index and %MAC on one line, DOI on top.
- Consistent cargo order: forward - aft.
- Airports section with ICAO and name search.
- Restored manual entry of obstacles and runway length (NOTAM).
- Fixed EOSID display.

### 3.0.1 — 2026-04-03

bug fix

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## More apps by SZ RTSAI, OOO

- [SmartSky Pro](https://appshunter.io/ios/app/smartsky-pro/id1479002859)

All apps by SZ RTSAI, OOO: https://appshunter.io/developer/1601178625

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*