RC Circuit vs Ratio Simplifier
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RC Circuit
Calculate RC charging and filter circuits, including time constants and cutoff frequencies. Find component values from these parameters or get voltage at specific times. Save and share data easily.
- Calculate time constant
- Find component values
- Get voltage at time t
- Calculate cutoff frequency
- Save data to CSV
- Upload CSV via AirDrop/iCloud Drive
- Multi-language support
Read full descriptionHide full description
This app is used to calculate the RC charging and RC filter circuit. It is suitable for hobbyist or electronic engineer. Features * Calculate time constant from R, C * Find component value R,C from time constant * Get voltage at time t in RC charging / discharging * Calculate cutoff frequency by R, C * Find component value R,C from cutoff frequency * Save data to CSV files * Upload CSV via AirDrop / iCloud Drive * Support English, Traditional Chinese, Simplified Chinese, German, French, Italian, Spanish, Portuguese, Japanese
Ratio Simplifier
Read full descriptionHide full description
The cleanest ratio simplifier on your iPhone. Whether you are a student, teacher, chef, engineer, or just need quick math, Ratio Simplifier gives you answers in seconds. Enter two or three numbers, tap Calculate, and instantly see your ratio reduced to its simplest form. No clutter. No confusion. Just results. FREE FEATURES Simplify 2 number ratios instantly Supports whole numbers Clean and modern interface Works offline with no internet required PRO FEATURES One Time Purchase 3 number ratios Example 2 4 8 becomes 1 2 4 Decimal support Example 1.5 2.5 becomes 3 5 Step by step explanations See every GCD calculation Calculation history Saves your last 20 results locally Share results Export simplified ratios with one tap Remove all ads WHY GO PRO One time purchase No subscriptions ever Buy once and use forever including on all your Apple devices with Family Sharing PERFECT FOR Students Math homework fractions proportions Cooks and bakers Scaling recipes Engineers and designers Aspect ratios and scale models Teachers Demonstrating GCD calculations step by step PRIVACY FIRST All calculations happen on your device No data is collected No account required History is stored locally and can be cleared at any time Download now and start simplifying ratios for free
Screenshots
Verdict
The clearest difference is update cadence: RC Circuit at every 6 months against Ratio Simplifier's every 17 months. RC Circuit also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price, 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
Both are free to download. RC Circuit sells 1 one-off in-app purchase and Ratio Simplifier sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
RC Circuit ships an update every 6 months, Ratio Simplifier every 17 months. The most recent releases landed on September 24, 2026 and June 11, 2026 respectively.
| Parameter | RC Circuit | Ratio Simplifier |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5 ratings) — better | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 6 months — better | Every 17 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 16 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Siu Yuen Ho | Agustiyansyah Syam |
In-app purchases
RC Circuit
- Unlock Pro features$0.99
Ratio Simplifier
- Ratio Simplifier Pro$1.99
Questions
Is RC Circuit free?
Is Ratio Simplifier free?
Do RC Circuit or Ratio Simplifier have ads?
Which is updated more often, RC Circuit or Ratio Simplifier?
Other comparisons
