Comparison

Calculator‰ vs Solar Glance

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

Head to head
About

Calculator‰

This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.

Highlights
  • Large buttons
  • Clear display
  • Fast calculations
  • Intuitive layout
  • Retina Display support
Features
Read full description

This calculator has a perfect design that maximizes the size of the buttons and display, with a great layout for fast and easy calculations. Retina Display. Download now and see how truly great this basic calculator is.

About

Solar Glance

Features
Read full description

Solar Glance is an iOS Dashboard App for your iPad or iPhone (also available on macOS) that allows you to monitor your Sigenergy Solar and Battery data at a glance. • Connect to your Sigenergy Inverter via Modbus on the local network • Works even when your internet is down (it does not connect to Sigenergy servers) • You choose which readings you want to monitor • Readings are updated every 10s • The last 24 hours are shown on the graphs • Tells you when the grid is down (even without internet) • Tells you the status of your EV Charger • Monitor Inverter and Battery temperatures • Monitor Smart loads (eg Smart Port & Shelly devices) Solar Glance is ideal on an iDevice permanently attached to a wall. Perfect for an old device you have lying around, so long as it runs on iOS 18 or later. Note - You need to have a Sigenergy SigenStor Solar System to use Solar Glance. Solar Glance is not affiliated with Sigenergy. Modbus must be enabled on your inverter. You can enable Modbus in the mySigen App, Settings, System Settings, Modbus TCP Server Settings. Alternatively, ask your installer or Sigenergy to enable Modbus. If you have an AC EV charger, get them to set the inverter device ID to 2 as the AC EV charger will default to 1. The 24 hours graphs requires Solar Glance to be running to collect the data from your solar system for the 24 hours. If you have another device, or a Mac, continually running Solar Glance, then the 24 graphs will update from your other devices using iCloud. A wall mounted iPad, or running Solar Glance in the background on a Mac, is perfect for this. For configuration, just enter the IP address of your Sigenergy inverter, and click Test to discover the Modbus IDs. Get the IP address from the mySigen App, Settings, System Settings, Connectivity, Device, SigenStor, Ethernet or Wifi, IP Address. Make the IP Address Fixed/Static on your home router so it does not change when your inverter reconnects to your router. To add readings, such as any smart loads you have connected, just tap a graph to show the "+" button, and click, then choose the reading you want to add. Tap a reading to add or remove that reading from the graphs. Long tap a reading to edit it (colour and text), to move it up or down, or to remove it.

Screenshots

Calculator‰2 screens
Solar Glance4 screens

Verdict

The call

The clearest difference is price: Calculator‰ at Free against Solar Glance's $1.99. Calculator‰ also leads on iOS requirement (15.0 vs 18.6). Solar Glance's advantage is ads (none vs shown) and update cadence (every 2 months vs every 5 months). On 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

CostPrice · In-app purchases · Ads · Monetization

Calculator‰ is free to download; Solar Glance costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Calculator‰ ships an update every 5 months, Solar Glance every 2 months. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
Calculator‰ versus Solar Glance: the parameters behind the verdict, then further details
ParameterCalculator‰Solar Glance
PriceFree — better$1.99
Rating4.9 (410K ratings) — better—
Positive reviews69.8% of reviews—
Number of ratings410K — better—
Update frequencyEvery 5 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, Mac
Requires iOS15.0 — better18.6
Further details — not scored
Size47 MB4 MB
Age rating4+4+
DeveloperTim O's Studios, LLCMark Malone

Bugs and requests

Calculator‰

Reported bugs

2 issues
  • Calculations sometimes incorrect
  • App crashing or freezing

Requested features

4 requests
  • Percentage key in portrait mode
  • Option to remove ads (paid version)
  • More customization options
  • Memory function

Solar Glance

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Calculator‰

No in-app purchases

None

Solar Glance

No in-app purchases

Questions

Is Calculator‰ free?
Calculator‰ is free to download, with no in-app purchases.
Is Solar Glance free?
Solar Glance costs $1.99, with no in-app purchases.
Do Calculator‰ or Solar Glance have ads?
Calculator‰ shows ads; Solar Glance does not.
Which is updated more often, Calculator‰ or Solar Glance?
Calculator‰ ships an update every 5 months, and Solar Glance every 2 months. Most recently, Calculator‰ was updated on October 28, 2026 and Solar Glance on October 25, 2026.

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