Calculator Plus Pro vs AMPI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator Plus Pro
Enhance your iPad experience with this advanced calculator. It offers intelligent calculations and a clean, ad-free interface, making complex math tasks simpler and more efficient.
- Intelligent calculations
- Complex math support
- Ad-free experience
- Optimized for iPad
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$ 600 + buy iPad, $ 0.99 Make your iPad more perfect. Better use & no ads
AMPI
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The Australasian Marine Pilots Institute (AMPI) is the peak professional body representing pilots across the Australasian region. The AMPI mobile App is an information-sharing tool to help improve maritime safety and enhance engagement amongst its members and maritime industry stakeholders. The App also contains a variety of useful information resources regarding pilot transfer arrangements for operational reference purposes. The 'Next Port Report Forms' enable Australian marine pilots to notify the next port where non-compliance with the pilot transfer requirements is identified. Users must agree to the User Agreement to gain access to the App. The AMPI mobile App is another great step forward to improve maritime safety outcomes for marine pilots throughout the Australasian region - proudly developed by Australian developers 'App Wizard' (appwizard.com.au). For further information, or to report technical issues with the App, please contact the App developers via email to info@appwizard.com.au
Screenshots
Verdict
The clearest difference is in-app purchases: AMPI at none against Calculator Plus Pro's 1. Calculator Plus Pro's advantage is update cadence (every 7 months vs every 16 months). On price, ads, device support and iOS requirement 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
Both are free to download. Calculator Plus Pro sells 1 one-off in-app purchase. AMPI asks for nothing beyond the download.
Calculator Plus Pro ships an update every 7 months, AMPI every 16 months. The most recent releases landed on November 2, 2026 and November 11, 2026 respectively.
| Parameter | Calculator Plus Pro | AMPI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (35 ratings) — better | — |
| Positive reviews | 35.7% of reviews | — |
| Number of ratings | 35 — better | — |
| Update frequency | Every 7 months — better | Every 16 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 98 MB |
| Age rating | 4+ | 17+ |
| Developer | 政 王 | Australasian Marine Pilots Institute Limited |
In-app purchases
Calculator Plus Pro
- Remove Ads.$1.99
AMPI
No in-app purchases
Questions
Is Calculator Plus Pro free?
Is AMPI free?
Do Calculator Plus Pro or AMPI have ads?
Which is updated more often, Calculator Plus Pro or AMPI?
Other comparisons
