Comparison

Spread Test Calculator vs Count Keeper

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

Head to head

Spread Test Calculator

Calculate SGN and UI values

Digital Counter app

About

Spread Test Calculator

Features

Read full description

Calculates the SIZE GUIDE NUMBER and UNIFORMITY INDEX value from the results of your standard fertiliser sieve. This is used to determine the characteristics of your fertiliser.

About

Count Keeper

Features

Read full description

This App is a digital counter that helps to track, record and maintain a numerical count Key Features - Friendly User Interface - Automated Sort - Manual Sort

Screenshots

Spread Test Calculator2 screens

Count Keeper3 screens

Verdict

The call

The clearest difference is ads: Spread Test Calculator at none against Count Keeper's shown. Spread Test Calculator also leads on iOS requirement (11.0 vs 15.6). Count Keeper's advantage is update cadence (fortnightly vs every 8 months). On price, 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

Spread Test Calculator ships an update every 8 months, Count Keeper fortnightly. The most recent releases landed on October 2, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 3 level

Spread Test Calculator versus Count Keeper: the parameters behind the verdict, then further details
Parameter	Spread Test Calculator	Count Keeper
Price	Free	Free
Update frequency	Every 8 months	Fortnightly — better
Ads	No — better	Yes
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	11.0 — better	15.6
Further details — not scored
Size	25 MB	3 MB
Age rating	4+	4+
Developer	Brian Dockerty	Mayuran Thanarajah

In-app purchases

None

Spread Test Calculator

No in-app purchases

None

Count Keeper

No in-app purchases

Questions

Is Spread Test Calculator free?

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

Is Count Keeper free?

Count Keeper is free to download, with no in-app purchases.

Do Spread Test Calculator or Count Keeper have ads?

Count Keeper shows ads; Spread Test Calculator does not.

Which is updated more often, Spread Test Calculator or Count Keeper?

Spread Test Calculator ships an update every 8 months, and Count Keeper fortnightly. Most recently, Spread Test Calculator was updated on October 2, 2026 and Count Keeper on October 13, 2026.