Calculator HD+ Pro vs Flightsim Checklists
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator HD+ Pro
This app offers a high-precision calculation engine with a user-friendly interface. It allows for real-time formula display, multiple undo options, and workspace switching. Advanced features include persistent history, specialized keypads, and AirPrint compatibility.
- High precision engine
- Result displayed while typing
- Multiple undo
- Switch between workspaces
- Persistent history
- Specialized keypad
- AirPrint support
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- It is simple, easy to use and well designed - High precision engine - Result is displayed while typing the formula - Multiple undo - Switch between workspaces ! - Persistent history - Specialized keypad for iPhone and iPad - Supports bluetooth keyboard - Right or left-handed mode - Print easily with AirPrint - Share history by e-mail The PRO version has the following advantages: - more workspaces - no advertising
Flightsim Checklists
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Scrolling checklists from gate to gate functionality. Simbrief flight plan sync. Save your flight history when completed. Sounds available. Airbus and Boeing aircraft. More to come.
Screenshots
Verdict
The clearest difference is price: Flightsim Checklists at $1.99 against Calculator HD+ Pro's $3.99. Calculator HD+ Pro's advantage is iOS requirement (10.0 vs 15.1). On update cadence, ads, in-app purchases 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
Calculator HD+ Pro costs $3.99 and Flightsim Checklists $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 10, 2026 and November 9, 2026 respectively.
| Parameter | Calculator HD+ Pro | Flightsim Checklists |
|---|---|---|
| Price | $3.99 | $1.99 — better |
| Rating | 4.8 (99 ratings) — better | — |
| Positive reviews | 89.9% of reviews | — |
| Number of ratings | 99 — better | — |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 31 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | smalltech sarl | Herman Ulloa |
Bugs and requests
Calculator HD+ Pro
Reported bugs
3 issues- Calculation history not always accurate
- Music playback issues when app is opened
- Location permission request not necessary
Requested features
4 requests- Customizable decimal places
- Memory function
- Conversion tools
- Ability to sync across devices
Flightsim Checklists
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculator HD+ Pro
No in-app purchases
Flightsim Checklists
No in-app purchases
Questions
Is Calculator HD+ Pro free?
Is Flightsim Checklists free?
Do Calculator HD+ Pro or Flightsim Checklists have ads?
Which is updated more often, Calculator HD+ Pro or Flightsim Checklists?
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