Kalc vs Percent Error Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kalc
This utility app offers a unit converter, calculator, and world clock. Its user-friendly interface is designed for quick access to everyday calculations and conversions.
- Unit converter
- Calculator
- World clock
- Simple UI
- Quick results
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Unit Converter, Calculator, and World Clock. The simple & clean UI to get the results you need for everyday use as quickly as possible.
Percent Error Calculator
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Percent error calculator finds the relative error between the observed and true values.
Screenshots
Verdict
Kalc and Percent Error Calculator are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
Kalc ships an update every 9 days, Percent Error Calculator weekly. The most recent releases landed on October 23, 2026 and October 3, 2026 respectively.
| Parameter | Kalc | Percent Error Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (3 ratings) — better | — |
| Positive reviews | 96.2% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 9 days | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.4 | 13.0 — better |
| Further details — not scored | ||
| Size | 24 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | YUTA OKAJIMA | Stage Coding |
In-app purchases
Kalc
No in-app purchases
Percent Error Calculator
No in-app purchases
Questions
Is Kalc free?
Is Percent Error Calculator free?
Do Kalc or Percent Error Calculator have ads?
Which is updated more often, Kalc or Percent Error Calculator?
Other comparisons
