kong calculator vs Octuple Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
kong calculator
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It is a simple calculator that provides a calculation history function.
Octuple Calc
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Display eight calculators and perform calculations with each one.
Screenshots
Verdict
The clearest difference is update cadence: kong calculator at every 4 days against Octuple Calc's every 2 weeks. On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
kong calculator ships an update every 4 days, Octuple Calc every 2 weeks. The most recent releases landed on June 5, 2026 and September 10, 2026 respectively.
| Parameter | kong calculator | Octuple Calc |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days — better | Every 2 weeks |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.8.3 |
| Further details — not scored | ||
| Size | 20 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Changyeol Seo | Hideaki Uchikoshi |
In-app purchases
kong calculator
No in-app purchases
Octuple Calc
No in-app purchases
Questions
Is kong calculator free?
Is Octuple Calc free?
Do kong calculator or Octuple Calc have ads?
Which is updated more often, kong calculator or Octuple Calc?
Other comparisons
