Comparison

E6B Flight Computer CFI Pilot vs ATISwim

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

Head to head
About

E6B Flight Computer CFI Pilot

Features
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E6B Flight Computer is the essential aviation calculator for student pilots, CFIs, and cockpit professionals. Built for PPL checkrides, cross country planning, and everyday flight operations — all offline, no internet required. AVIATION CALCULATORS 22 precision calculators covering every phase of flight: Wind & Navigation — Wind correction angle, heading & ground speed, crosswind & headwind components, course & distance between coordinates. Speed & Altitude — True airspeed (TAS), calibrated airspeed (CAS), density altitude, pressure altitude, true altitude, and cloud base estimation using ICAO standard atmosphere formulas. Fuel — Fuel required, endurance, point of no return, and equivalent still air distance. Performance — Weight & Balance with interactive CG envelope chart, top of descent, climb/descent gradient, and percent MAC. Time — Leg time, ETA calculator, and time/speed/distance solver. WEIGHT & BALANCE WITH ENVELOPE CHART Add crew, passengers, fuel, and baggage. The app computes total weight, total moment, and CG position — and plots it live on an interactive envelope chart. The tool every CFI recommends. UNIT CONVERSIONS 9 bidirectional converters: Temperature, Distance (NM/SM/KM), Speed (kt/mph/kph), Altitude (ft/m), Pressure (inHg/hPa), Weight (lb/kg), Volume (gal/L), Avgas weight, and Jet-A weight. COCKPIT CLOCKS & TIMERS Three simultaneous clocks — Zulu (UTC), Local, and Home timezone. Countdown timer with alarm, stopwatch with lap times for leg tracking. HOME SCREEN WIDGETS - Zulu Clock widget — always-on UTC time - Density Altitude widget — current conditions at a glance - Quick Converter widget LIVE ACTIVITY Flight timer countdown on your Lock Screen and Dynamic Island — no unlock needed. WORKS COMPLETELY OFFLINE No internet, no account, no server. Every formula runs on-device using pure ICAO Standard Atmosphere calculations. KEY FEATURES • 22 aviation calculators — wind, altitude, fuel, W&B, time • Interactive W&B envelope chart • Zulu / Local / Home clocks • Countdown timer & stopwatch with laps • Bidirectional unit conversions (NM, kt, inHg, Avgas, Jet-A) • Live Activity on Lock Screen & Dynamic Island • Home Screen widgets • Fully offline — no internet required • Built for PPL, CPL, CFI, and cockpit professionals SUBSCRIPTION INFORMATION Access to E6B Flight Computer requires an active subscription. All features — including calculators, W&B chart, conversions, timers, and widgets — are unlocked with a subscription. Subscription options are presented within the app. Payment is charged to your Apple ID account at confirmation of purchase. The subscription automatically renews unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscription in your Apple ID account settings after purchase. Privacy Policy: https://github.com/MAAlsaleh0/E6B_Legal/blob/main/privacy-policy.md Terms of Use: https://github.com/MAAlsaleh0/E6B_Legal/blob/main/terms-of-use.md

About

ATISwim

Features
Read full description

2026年よりサービス開始になったSWIMのWeb APIを用いて対応空港のATISを取得するアプリです。 あらかじめSWIMでアカウントを作成の上、ATIS情報リクエストサービスの利用開始を押しておいてください。

Screenshots

E6B Flight Computer CFI Pilot4 screens
ATISwim3 screens

Verdict

The call

The clearest difference is in-app purchases: ATISwim at none against E6B Flight Computer CFI Pilot's 2. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. E6B Flight Computer CFI Pilot sells 2 in-app purchases, starting at $2.99 per 7 days. ATISwim asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 4, 2026 and September 29, 2026 respectively.

Scorecard1 real difference · 5 level
E6B Flight Computer CFI Pilot versus ATISwim: the parameters behind the verdict, then further details
ParameterE6B Flight Computer CFI PilotATISwim
PriceFreeFree
Update frequencyEvery 4 daysEvery 4 days
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.0 — better18.2
Further details — not scored
Size12 MB1 MB
Age rating12+4+
DeveloperMohammed AlsalehTAKUYA HIGUCHI

In-app purchases

2 purchases

E6B Flight Computer CFI Pilot

Subscriptions1
  • Weekly3 Days trial$2.997 Days
One-time1
  • Lifetime$17.99
None

ATISwim

No in-app purchases

Questions

Is E6B Flight Computer CFI Pilot free?
E6B Flight Computer CFI Pilot is free to download, with in-app purchases available.
Is ATISwim free?
ATISwim is free to download, with no in-app purchases.
Do E6B Flight Computer CFI Pilot or ATISwim have ads?
Neither E6B Flight Computer CFI Pilot nor ATISwim shows ads.
Which is updated more often, E6B Flight Computer CFI Pilot or ATISwim?
E6B Flight Computer CFI Pilot ships an update every 4 days, and ATISwim every 4 days. Most recently, E6B Flight Computer CFI Pilot was updated on October 4, 2026 and ATISwim on September 29, 2026.

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