GraphCalcPro2Go vs SD Tool
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GraphCalcPro2Go
This advanced scientific calculator offers ultra-high precision and a wide range of functions, replicating expensive handheld devices with added iOS capabilities. It supports both standard and RPN modes, includes built-in constants, and syncs across devices via iCloud. Users can also create graphs and share calculations.
- Ultra high precision and range
- Standard (in-fix) and RPN modes
- Built-in constants and unit conversions
- iCloud sync across devices
- Create and share graphs
- Apple Watch compatibility
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GraphCalcPro2Go is an advanced scientific calculator, offering features found on expensive handheld calculators, but with additional capabilities not possible with handhelds, thanks to iOS. Features include: • No ads. Ever. • Ultra high precision and range • Intuitive and easy to use • Standard (in-fix) and RPN modes • Built-in constants and unit conversions • iCloud sync With iCloud sync, you can synchronize your calculation history with GraphCalcPro2Go on all your iOS devices, and with GraphCalcPro on your Macs. Sharing feature allows you to share your calculation history with other users running GraphCalcPro2Go on their iOS devices and GraphCalcPro on their Macs. Additionally, you can create beautiful graphs with GCP2Go at the touch of a button. And now, you can run GCP2Go on your Apple Watch. GCP2Go on Apple Watch has the precision, performance, and all the scientific functions available on the iOS version - and graphing capability! Sync constants, and optionally history, between GCP2Go on your iPhone and your Apple Watch. Premium upgrade adds additional features, including: • Graph multiple equations simultaneously • Graph printing and sharing • Additional built-in constants, fully customizable • iCloud sync and sharing of user constants
SD Tool
This utility app facilitates the management of Ubigreen SmartDesk sensors. Users can install, replace, disable, or move sensors by associating them with locations, scanning QR codes, or inputting serial numbers. It offers automatic data syncing to the cloud and local duplication detection.
- Install, replace, disable, and move sensors
- Associate sensors with locations
- Scan QR codes or input serial numbers
- Automatic data sync to Ubigreen cloud
- Export installed sensor list to CSV
- Local duplication detection
- View sensor status and autonomy
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This app allows to INSTALL / REPLACE / DISABLE / MOVE Ubigreen SmartDesk sensors: - Login with credentials - Choose action to perform from home menu - Install > associate a sensor to a location - Replace > replace the sensor of a location - Disable > dissociate a sensor from its location - Move > displace a sensor to a new location Here are some specific available features: - Scan QR code of SmartDesk device to get sensor info - Input serial number when QR code is not accessible - Automatic push data to Ubigreen cloud - List of installed SmartDesk sensors / export to CSV format and share by mail - Local duplication detections on installation - Sensor status (last communication date and autonomy) on installation iOS 13 compatibility and dark mode For any request, please feel free to contact support@ubigreen.com
Screenshots
Verdict
The clearest difference is rating: GraphCalcPro2Go at 4.6 against SD Tool's 1.0. GraphCalcPro2Go also leads on ratings volume (40 vs 1). SD Tool's advantage is in-app purchases (none vs 1) and update cadence (every 6 weeks vs every 3 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
Both are free to download. GraphCalcPro2Go sells 1 one-off in-app purchase. SD Tool asks for nothing beyond the download.
GraphCalcPro2Go holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: GraphCalcPro2Go has 40 ratings behind it against 1, so its average is the more settled of the two.
GraphCalcPro2Go ships an update every 3 months, SD Tool every 6 weeks. The most recent releases landed on September 29, 2026 and October 4, 2026 respectively.
| Parameter | GraphCalcPro2Go | SD Tool |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (40 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 40 — better | 1 |
| Update frequency | Every 3 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 18.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Starware Software LLC | Ubigreen |
Customer experience
GraphCalcPro2Go
SD Tool
In-app purchases
GraphCalcPro2Go
- Premium$0.99
SD Tool
No in-app purchases
