Comparison

Solis vs HD Flight Log

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

Head to head
About

Solis

Track sunrise, sunset, and twilight times globally with visually appealing gradient displays. Receive notifications for key solar events and access golden and blue hour times for photography. A simple widget provides at-a-glance information.

Highlights
  • Sunrise and sunset time tracking
  • Twilight time display (golden/blue hour)
  • Global city support
  • Event notifications
  • Today widget
  • Twilight type explanations
Features
Read full description

Sunrise, sunset, and twilight time time-tracker - Solis shows you when it gets dark or light in any city around the world with its beautiful gradient. - Setup notifications for all the important sun events so you never get caught out in the dark again. - See the times of golden and blue hour for photography with the perfect light. - Simple today widget to know at a glance when the next sunrise, sunset, first light, or last light occurs. - Learn about the three different types of twilight and find out how they affect the light in the sky.

About

HD Flight Log

Features
Read full description

HD Flight Log is a simple personal flight logging and operational note-taking app designed for pilots who want a fast way to record flight activity in the field. Start a flight in seconds, complete the entry after landing, and track key details such as flight time, landings, cycle counts, hook hours, fuel values, notes, and attached photos. Entries are grouped by day, with daily and rolling totals to help you quickly review recent activity. Customize your setup by aircraft type so each aircraft can show the fields that matter most. Configure aircraft registrations, adjust visible fields, manage fuel units, and back up or restore your setup when needed. Version 1.0.2 adds new operational tracking tools, including an Air Time Calculator for tracking takeoff-to-landing segments, a Loads/Drops counter for bucket drops, sling loads, or similar repetitive operations, and improved timezone-consistent time calculations for flights that may cross time zones. Deleted entries can also now be moved to a recoverable Deleted Entries section before being permanently removed. Features include: • Fast start-flight workflow • Editable flight entries • Daily totals by aircraft • Rolling flight-time summaries • Configurable aircraft types and fields • Aircraft registration management • Fuel, cycle, landing, hook-hour, and note fields • Air Time Calculator with segment logging • Loads/Drops counter • Timezone-consistent flight time calculations • Photo attachments for flight entries • Deleted Entries recovery section • iCloud sync across devices signed into the same Apple ID • Backup and restore support • Configuration import and export HD Flight Log is intended as a personal flight logging and operational note-taking tool. It is not a substitute for official company, aircraft, maintenance, regulatory, or legal records. Users are responsible for verifying entries and maintaining any required official records through approved systems. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://hdaviation.ca/?page_id=80

Screenshots

Solis4 screens
HD Flight Log4 screens

Verdict

The call

The clearest difference is in-app purchases: Solis at none against HD Flight Log's 2. Solis also leads on iOS requirement (9.0 vs 26.0). HD Flight Log's advantage is update cadence (weekly vs every 2 months). On price, 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. HD Flight Log sells 2 in-app purchases, starting at $2.99 per month. Solis asks for nothing beyond the download.

UpkeepUpdate frequency

Solis ships an update every 2 months, HD Flight Log weekly. The most recent releases landed on September 16, 2026 and September 15, 2026 respectively.

Scorecard3 real differences · 7 level
Solis versus HD Flight Log: the parameters behind the verdict, then further details
ParameterSolisHD Flight Log
PriceFreeFree
Rating4.8 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS9.0 — better26.0
Further details — not scored
Size59 MB5 MB
Age rating4+4+
DeveloperJake RunzerHD Aviation Ltd.

In-app purchases

None

Solis

No in-app purchases

2 purchases

HD Flight Log

Subscriptions2
  • Flight Log Monthly14 Days trial$2.991 Month
  • Flight Log Annual14 Days trial$8.991 Year

Questions

Is Solis free?
Solis is free to download, with no in-app purchases.
Is HD Flight Log free?
HD Flight Log is free to download, with in-app purchases available.
Do Solis or HD Flight Log have ads?
Neither Solis nor HD Flight Log shows ads.
Which is updated more often, Solis or HD Flight Log?
Solis ships an update every 2 months, and HD Flight Log weekly. Most recently, Solis was updated on September 16, 2026 and HD Flight Log on September 15, 2026.

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