Comparison

Plot Calculator vs Robolabs LMS

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

Head to head

About

Plot Calculator

Features

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This app is designed to aid small plot researchers. It contains unit converter, area calculator and fertilizer rate calculator. It also calculates the amount of fertilizer material needed per plot, rep, and trial using fertilizer nutrient concentration, plot size, number of treatments and reps. This project is supported by Oklahoma Fertilizer CheckOff, Oklahoma Agriculture Experiment Stations and the Oklahoma Cooperative Extension.

About

Robolabs LMS

Features

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Manage your student activities with ease

Screenshots

Plot Calculator3 screens

Robolabs LMS4 screens

Verdict

The call

The clearest difference is update cadence: Plot Calculator at every 2 months against Robolabs LMS's every 10 months. Plot Calculator also leads on iOS requirement (10.2 vs 16.0). 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

Plot Calculator ships an update every 2 months, Robolabs LMS every 10 months. The most recent releases landed on September 22, 2026 and September 19, 2026 respectively.

Scorecard2 real differences · 4 level

Plot Calculator versus Robolabs LMS: the parameters behind the verdict, then further details
Parameter	Plot Calculator	Robolabs LMS
Price	Free	Free
Update frequency	Every 2 months — better	Every 10 months
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPad
Requires iOS	10.2 — better	16.0
Further details — not scored
Size	13 MB	0 MB
Age rating	4+	4+
Developer	Oklahoma State University	Nidhin Rao

In-app purchases

None

Plot Calculator

No in-app purchases

None

Robolabs LMS

No in-app purchases

Questions

Is Plot Calculator free?

Plot Calculator is free to download, with no in-app purchases.

Is Robolabs LMS free?

Robolabs LMS is free to download, with no in-app purchases.

Do Plot Calculator or Robolabs LMS have ads?

Neither Plot Calculator nor Robolabs LMS shows ads.

Which is updated more often, Plot Calculator or Robolabs LMS?

Plot Calculator ships an update every 2 months, and Robolabs LMS every 10 months. Most recently, Plot Calculator was updated on September 22, 2026 and Robolabs LMS on September 19, 2026.