Interpolator vs GyroCop
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Interpolator
Easily find values within tables using interpolation for two or three rows. This utility app simplifies calculations without needing a separate calculator, making it ideal for various table-based environments.
- Two-row interpolation
- Three-row interpolation
- Table value lookup
- No calculator needed
- Cargo surveyor tool
- General table use
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This is a small app which makes it very easy to look up values in tables (math etc) when you have to interpolate both in two and in three rows. No more need for a calculator to interpolate manually. This app was designed primarily for cargo surveyors working with tank calibration tables, but the app does have its application in any environment where tables are used. As of 13th January 2015, this app has become FREE until further notice.
GyroCop
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GyroCop is a practical marine compass check tool designed for seafarers. The app helps officers perform celestial compass checks using the Sun, Moon, planets and bright stars. It supports clear bridge workflows for calculating magnetic course, deviation and final compass error. Main features: • Celestial compass check calculations • Sun, Moon, planets and bright stars support • Magnetic course and compass error calculation • Vessel deviation card storage • Deviation curve view • Check history and reports • Clean dark maritime interface GyroCop is designed for practical bridge use and training. Important: GyroCop is a calculation aid only. It does not replace official navigation equipment, approved onboard procedures, nautical publications, class/company requirements, or the professional judgment of the officer on watch.
Screenshots
Verdict
The clearest difference is update cadence: GyroCop at every 6 days against Interpolator's every 4 months. Interpolator's advantage is iOS requirement (12.0 vs 17.6). 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.
Interpolator ships an update every 4 months, GyroCop every 6 days. The most recent releases landed on October 12, 2026 and October 4, 2026 respectively.
| Parameter | Interpolator | GyroCop |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (74 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 74 — better | — |
| Update frequency | Every 4 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 18 MB | 14 MB |
| Age rating | +4 | 4+ |
| Developer | ron mooring | Dlyaver Alchik |
In-app purchases
Interpolator
No in-app purchases
GyroCop
No in-app purchases
Questions
Is Interpolator free?
Is GyroCop free?
Do Interpolator or GyroCop have ads?
Which is updated more often, Interpolator or GyroCop?
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