Basic Calculator+ vs XTEND
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Basic Calculator+
Perform essential arithmetic operations with a straightforward calculator app. Its large buttons and clear display ensure ease of use, supporting both portrait and landscape orientations.
- Basic four functions
- Clear display
- Large buttons
- Portrait and landscape modes
- iPad compatible
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This simple calculator with a clear display and large buttons makes calculations easy. Portrait and landscape modes both available on iPad. This app uses the basic functions of the calculator to make the simplest, best, free calculator in the app store.
XTEND
This application mirrors your vehicle's in-cab display to your mobile device, allowing remote access to Horizon software features. Perform calibrations, diagnostics, and tank fills from anywhere around your machine using a familiar interface.
- Extend in-cab display to mobile device
- Access Horizon software features remotely
- Perform calibration and diagnostics
- Manage tank fills
- Familiar user interface
- Dedicated WiFi synchronization
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The XTEND app is used in conjunction with the Horizon XTEND feature on the Topcon in-cab displays. Using the XTEND technology, you can extend the user interface of your display to your mobile device’s screen. Get access to many of the Horizon software features directly on your mobile device, both within and outside the cab of your vehicle. Use your mobile device to perform calibration, diagnostics, tank fill and many other activities anywhere around your machine via the familiar Horizon user interface. A dedicated WiFi connection keeps your mobile device always in sync with the main display in the cab.
Screenshots
Verdict
The clearest difference is review sentiment: Basic Calculator+ at 88% against XTEND's 0%. Basic Calculator+ also leads on rating (4.9 vs 1.0) and update cadence (every 4 months vs every 25 months). XTEND's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Basic Calculator+ holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: Basic Calculator+ has 261K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 88% of Basic Calculator+'s written reviews are positive against 0% of XTEND's.
Basic Calculator+ ships an update every 4 months, XTEND every 25 months. The most recent releases landed on November 3, 2026 and November 2, 2026 respectively.
| Parameter | Basic Calculator+ | XTEND |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (261K ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 87.5% of reviews — better | 0.0% of reviews |
| Number of ratings | 261K — better | 1 |
| Update frequency | Every 4 months — better | Every 25 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 17 |
| Further details — not scored | ||
| Size | 50 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Best Free Apps | Topcon Precision Agriculture Pty Ltd |
Customer experience
Basic Calculator+
XTEND
Bugs and requests
Basic Calculator+
Reported bugs
2 issues- Incorrect calculation results
- Ads covering the screen
Requested features
3 requests- Add fraction button
- Implement order of operations
- Include memory function
XTEND
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Basic Calculator+
No in-app purchases
XTEND
No in-app purchases
