Comparison

Disk Graph vs 12C Platinum Calculator

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

Head to head
About

Disk Graph

Analyze your device's storage to identify large files and identify items not accessed recently. This utility helps you reclaim disk space by showing what's taking up the most room. Access directories directly through the Files app.

Highlights
  • Inspect disk usage
  • Find large files
  • Identify old files
  • Reclaim disk space
  • File access via Files app
Features
Read full description

Inspect your disk and find the files that occupy the most space or that haven’t been modified in a long time. Only directories reachable in the Files app can be opened.

About

12C Platinum Calculator

This financial calculator offers over 120 built-in functions for complex calculations like IRR and NPV. It supports RPN entry, programming custom keystrokes, and includes features for loan payments, interest rate conversions, bond pricing, and statistical analysis.

Highlights
  • 120+ built-in financial functions
  • RPN keystroke entry
  • Programmable keystrokes (up to 99)
  • Loan and mortgage payment calculations
  • Bond price and yield calculations
  • Statistical analysis and forecasting
Features
Read full description

Financial calculator includes more than 120 built-in functions and allows 20 different cash flows for internal rate of return and net present values. Calculate loan and mortgage payments, convert interest rates, and figure bond prices and yields. RPN keystrokes optimize data entry and calculation performance. Program up to 99 keystrokes into memory and then execute with the push of a single button. Other functions include depreciation, percent change, cumulative statistical analysis, standard deviation, mean, weighted mean, linear regression, forecasting, correlation coefficient, date arithmetic, undo and backspace keys. Number of Display Lines: 1 Number of Display Digits: 10 Number of Functions: 120 Operations/Functionality: - Accounting - Banking - Business Studies - Finance - Real Estate

Screenshots

Disk Graph4 screens
12C Platinum Calculator3 screens

Verdict

The call

The clearest difference is price: 12C Platinum Calculator at Free against Disk Graph's $5.99. 12C Platinum Calculator also leads on rating (5.0 vs 4.2) and iOS requirement (15.6 vs 17.0). On ratings volume, update cadence, ads and in-app purchases 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

12C Platinum Calculator is free to download; Disk Graph costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

12C Platinum Calculator holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 5 and 2 respectively.

UpkeepUpdate frequency

Disk Graph ships an update every 3 months, 12C Platinum Calculator every 2 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard4 real differences · 6 level
Disk Graph versus 12C Platinum Calculator: the parameters behind the verdict, then further details
ParameterDisk Graph12C Platinum Calculator
Price$5.99Free — better
Rating4.2 (5 ratings)5.0 (2 ratings) — better
Positive reviews74.5% of reviews—
Number of ratings5 — better2
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.015.6 — better
Further details — not scored
Size8 MB5 MB
Age rating4+4+
DeveloperNicolas Kick国栋 焦

Customer experience

Disk Graph

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews47 reviews
Positive74.5%
Neutral8.5%
Negative17.0%

12C Platinum Calculator

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Disk Graph

No in-app purchases

None

12C Platinum Calculator

No in-app purchases

Questions

Is Disk Graph free?
Disk Graph costs $5.99, with no in-app purchases.
Is 12C Platinum Calculator free?
12C Platinum Calculator is free to download, with no in-app purchases.
Which has better reviews, Disk Graph or 12C Platinum Calculator?
12C Platinum Calculator is rated higher. Disk Graph averages 4.2 out of 5 from 5 ratings, while 12C Platinum Calculator averages 5.0 from 2 ratings.
Do Disk Graph or 12C Platinum Calculator have ads?
Neither Disk Graph nor 12C Platinum Calculator shows ads.
Which is updated more often, Disk Graph or 12C Platinum Calculator?
Disk Graph ships an update every 3 months, and 12C Platinum Calculator every 2 months. Most recently, Disk Graph was updated on October 24, 2026 and 12C Platinum Calculator on October 27, 2026.

Other comparisons