Comparison

Circle and Sphere Pro vs Dictionary Zest

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

Head to head
About

Circle and Sphere Pro

This app calculates various geometric quantities for circles and spheres, including sectors and segments. It supports decimals and fractions, displays formulas and solutions step-by-step, and stores calculations in a history. Users can share their results.

Highlights
  • Calculates sphere and circle quantities
  • Supports sectors and segments
  • Shows formulas and step-by-step solutions
  • Handles decimals and fractions
  • Stores calculations in history
  • Allows sharing of results
Features
Read full description

This app calculates all quantities of a sphere (body of a sphere, circle, all parts of sector and segment). Therefore you must enter some variables (like the radius of a circle and the central angle). The algorithm searches the formulas of the missing quantities, shows them and calculates the results. Decimals and fractions are supported. The solution is shown step by step. All calculations are stored in the history. The final solution can be shared. [ Content ] - all important quantities for the circle and sphere calculation - formulas for all important quantities of a sphere, circle, sector and the segment - infographic to illustrate the topic - search bar to find the desired quantity - history function to save input - detailed solution - positive numbers, decimals and fractions are supported - no ads! [ Usage ] - there are several fields for entering the values ​​using a special keyboard - if values are missing, all fields are highlighted in orange - if values are oppositions (like "r = 1 and d = 3"), one affected field is highlighted in red - every value must be positive - maximum of alpha is 360° - beta must be less than 90° - if a value is no number, it is highlighted in red - the entries in the history can be deleted or sorted manually - if you select an entry in the history, it will be loaded automatically for the calculation - the entire history can be deleted by pressing a button - solutions can be shared

About

Dictionary Zest

Features
Read full description

Unleash the power of words with Dictionary Zest! Dive into a world of definitions, seamless translations, and sharp grammar tools, all wrapped in a vibrant, user-friendly experience. Perfect for curious minds eager to explore language with a zestful twist. Term of use:https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy:https://github.com/Willmokyw/WordZest/blob/main/policy

Screenshots

Circle and Sphere Pro4 screens
Dictionary Zest3 screens

Verdict

The call

The clearest difference is price: Dictionary Zest at Free against Circle and Sphere Pro's $2.99. Dictionary Zest also leads on update cadence (every 8 days vs monthly). Circle and Sphere Pro's advantage is iOS requirement (15.0 vs 18.2). On 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

Dictionary Zest is free to download; Circle and Sphere Pro costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Circle and Sphere Pro ships an update monthly, Dictionary Zest every 8 days. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Circle and Sphere Pro versus Dictionary Zest: the parameters behind the verdict, then further details
ParameterCircle and Sphere ProDictionary Zest
Price$2.99Free — better
Rating4.9 (7 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings7 — better—
Update frequencyMonthlyEvery 8 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.2
Further details — not scored
Size180 MB10 MB
Age rating4+4+
DeveloperGlindemann, Sennoun, Langer GbRMan Sao Ng

In-app purchases

None

Circle and Sphere Pro

No in-app purchases

None

Dictionary Zest

No in-app purchases

Questions

Is Circle and Sphere Pro free?
Circle and Sphere Pro costs $2.99, with no in-app purchases.
Is Dictionary Zest free?
Dictionary Zest is free to download, with no in-app purchases.
Do Circle and Sphere Pro or Dictionary Zest have ads?
Neither Circle and Sphere Pro nor Dictionary Zest shows ads.
Which is updated more often, Circle and Sphere Pro or Dictionary Zest?
Circle and Sphere Pro ships an update monthly, and Dictionary Zest every 8 days. Most recently, Circle and Sphere Pro was updated on October 25, 2026 and Dictionary Zest on October 30, 2026.

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