Voltage Divider vs Caline
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Voltage Divider
This engineering utility calculates unknown values in a voltage divider circuit. It can solve for voltages or resistor values, displaying ideal and actual resistor options. It also shows current, power, and voltage tolerance.
- Solves for Vin, Vout, R1, or R2
- Resistor picker with actual values
- Displays ideal resistor value
- Calculates voltage tolerance
- Shows current and power consumption
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A handy engineering utility that solves for voltages or resistor values in a common voltage divider circuit. Enter three terms (out of Vin, Vout, R1 or R2) and this app will solve for the fourth term automatically. The resistor picker will only let you pick from actual resistor values that exist. It's a great time saving tool for quickly selecting resistor values in a switching power supply design or any other circuit that incorporates a voltage divider. When solving for a voltage, select two resistor values and one of the voltages. The remaining voltage will be displayed automatically. The max and min possible voltages will also be displayed based on the resistor tolerances. The current and power through the divider will be displayed at the bottom of the screen. When solving for a resistor value, select two voltages and one resistor value. The remaining resistor value will be displayed in yellow. This is an ideal value. Use the resistor picker to select an actual resistor value close to that ideal value. You can then tell the app to solve for Vin or Vout to see if the resulting voltage meets your design requirements.
Caline
This calculator app allows users to save and refer to past calculation memos. It supports a wide range of functions, including trigonometric and logarithmic operations, and displays units like k, M, p, and % for better readability. It can also express values in decibels and hexadecimal format.
- Save and recall calculation memos
- Trigonometric and logarithmic functions
- Variable support
- Unit display (k, M, p, %)
- Decibel expression
- Hexadecimal conversion
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Calculation results can be saved, so you can refer to past calculation memos Addition, subtraction, multiplication, division, trigonometric functions, logarithms, variables, etc. can be used Readability is good because units such as k, M, p, and % can be used Can also be expressed in decibels, such as 6dB Can be written in hexadecimal, like $1A
Screenshots
Verdict
The clearest difference is review sentiment: Caline at 100% against Voltage Divider's 56%. Caline also leads on rating (5.0 vs 2.7) and update cadence (every 2 weeks vs every 48 months). Voltage Divider's advantage is iOS requirement (12.0 vs 15.0). On price, ratings volume, ads and in-app purchases 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
Voltage Divider costs $1.99 and Caline $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Caline holds the better App Store score, 5.0 against 2.7. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 56% of Voltage Divider's written reviews are positive against 100% of Caline's.
Voltage Divider ships an update every 48 months, Caline every 2 weeks. The most recent releases landed on June 23, 2026 and September 8, 2026 respectively.
| Parameter | Voltage Divider | Caline |
|---|---|---|
| Price | $1.99 | $1.99 |
| Rating | 2.7 (3 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 55.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 48 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Ditty Labs, LLC | Yuuichi Kuze |
Customer experience
Voltage Divider
Caline
In-app purchases
Voltage Divider
No in-app purchases
Caline
No in-app purchases
Questions
Is Voltage Divider free?
Is Caline free?
Which has better reviews, Voltage Divider or Caline?
Do Voltage Divider or Caline have ads?
Which is updated more often, Voltage Divider or Caline?
Other comparisons
