Voltage Drop Pro vs BareBolus
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Voltage Drop Pro
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Voltage Drop Calc is a fast, easy way to create a schedule of voltage drop calculations for any size of job or just to perform a single calculation on the fly. Put your pencil down and start making professional, consistent calculation today. - Universal app allows use on both iPad, and iPhone/iPod with single purchase. - Create an unlimited list of calculations that automatically save. - Export your results to a spreadsheet for formatting or printing. - Solve for distance in feet or meters. - Solve for voltage drop in either voltage or percentage. - Solve for wire size including derating. - Built in construction calculator allows intermediate calculations to be performed within the app.
BareBolus
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This calculator displays a list of any blood sugar values to the left - and the corresponding insulin to the right. Drag the blue apple to set your carb estimate. Easily edit your favourite personal factors in the settings and choose between them from the main screen. It is a simple and convenient tool without hidden mathematics or advanced algorithms. Once you know your blood sugar, you can look up your insulin with a glance at the screen. Designed by the father of a diabetic who refused to wear a pump. It turns out to be very useful for all people with diabetes. Seek a doctor's advice in addition to using this app and before making any medical decisions.
Screenshots
Verdict
The clearest difference is price: BareBolus at Free against Voltage Drop Pro's $3.99. BareBolus also leads on iOS requirement (15.6 vs 17.5). On update cadence, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
BareBolus is free to download; Voltage Drop Pro costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 2 months. Both last shipped on October 5, 2026.
| Parameter | Voltage Drop Pro | BareBolus |
|---|---|---|
| Price | $3.99 | Free โ better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.5 | 15.6 โ better |
| Further details โ not scored | ||
| Size | 15 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Snappy Appz Inc. | DiaBolus AS |
In-app purchases
Voltage Drop Pro
No in-app purchases
BareBolus
No in-app purchases
Questions
Is Voltage Drop Pro free?
Is BareBolus free?
Do Voltage Drop Pro or BareBolus have ads?
Which is updated more often, Voltage Drop Pro or BareBolus?
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