Comparison

Interpolator vs EPRALA

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Two-row interpolation
  • Three-row interpolation
  • Table value lookup
  • No calculator needed
  • Cargo surveyor tool
  • General table use
Features
Read full description

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.

About

EPRALA

Features
Read full description

EPRALA is a mobile application designed specifically for students at the Sekolah Tinggi Ilmu Pelayaran (STIP) Jakarta. We would like to emphasize that THIS APPLICATION DOES NOT REPRESENT ANY GOVERNMENT ENTITY. All information and features available within this application are provided solely for the purpose of facilitating the reporting and monitoring of field internship activities and do not have any official endorsement, approval, or affiliation with any government agency or institution. Users are advised to always verify important information through official government sources. This application provides a digital solution for students undergoing field internships, both on ships and at related agencies, to report their progress in a real-time and structured manner. EPRALA's Main Features: 1. Daily/Weekly Report Input: Students can easily complete daily or weekly field internship activity reports using the provided form. Reports can include activity descriptions, duration, and documentation (photo files). 2. Upload Supporting Documents: The application allows users to upload supporting documents, such as photos, required during field internships. 3. Notifications and Reminders: EPRALA is equipped with a notification system that reminds students to submit reports on time, thus avoiding delays in reporting. 4. Discussion: The application provides a discussion forum for students and their supervisors to exchange information, ask questions, or discuss field practice activities through the messaging menu. 5. Report History: All reports submitted by students are neatly stored in the history, making them easy to review or download when needed. 6. Data Security: EPRALA is equipped with a security system that maintains the confidentiality and integrity of student data, ensuring the security of personal information and field practice reports. Benefits of the EPRALA Application: 1. Time Efficiency: Makes it easier for students to report field practice activities without having to fill out manual forms. 2. Transparency: Supervisors can transparently monitor student progress and provide appropriate guidance. 3. Ease of Access: The application can be accessed anytime and anywhere, as long as there is an internet connection. 4. Reporting Effectiveness: Structured and digitized reports facilitate the evaluation and assessment process. EPRALA is here to support STIP Jakarta students during their fieldwork, ensuring that every step and experience is well-documented and focused. With EPRALA, fieldwork becomes more organized, efficient, and meaningful!

Screenshots

Interpolator4 screens
EPRALA2 screens

Verdict

The call

The clearest difference is update cadence: EPRALA at every 2 months against Interpolator's every 4 months. Interpolator's advantage is iOS requirement (12.0 vs 15.6). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Interpolator ships an update every 4 months, EPRALA every 2 months. The most recent releases landed on September 26, 2026 and October 5, 2026 respectively.

Scorecard2 real differences · 8 level
Interpolator versus EPRALA: the parameters behind the verdict, then further details
ParameterInterpolatorEPRALA
PriceFreeFree
Rating4.9 (74 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings74 — better—
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.6
Further details — not scored
Size18 MB37 MB
Age rating+44+
Developerron mooringArdiansyah Setiawan Suci

In-app purchases

None

Interpolator

No in-app purchases

None

EPRALA

No in-app purchases

Questions

Is Interpolator free?
Interpolator is free to download, with no in-app purchases.
Is EPRALA free?
EPRALA is free to download, with no in-app purchases.
Do Interpolator or EPRALA have ads?
Neither Interpolator nor EPRALA shows ads.
Which is updated more often, Interpolator or EPRALA?
Interpolator ships an update every 4 months, and EPRALA every 2 months. Most recently, Interpolator was updated on September 26, 2026 and EPRALA on October 5, 2026.

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