Comparison

Numbers Converter vs Convex Programmer's Calculator

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

Head to head
About

Numbers Converter

Easily convert numbers between Decimal, Binary, Octal, and Hexadecimal bases. This utility app offers a straightforward interface for quick and accurate number base conversions.

Highlights
  • Decimal conversion
  • Binary conversion
  • Octal conversion
  • Hexadecimal conversion
  • Simple interface
Features
Read full description

It is simple and easy to use Numbers Converter to convert the number bases. • Supports: Decimal, Binary, Octal, Hexadecimal.

About

Convex Programmer's Calculator

Convert numbers between hexadecimal, decimal, octal, and binary. Perform byte flips, bit shifts, and calculate two's complement. Features bit indicators and word grouping for improved binary readability.

Highlights
  • Number base conversion
  • Two's complement calculation
  • Byte flipping for endianness
  • Left and right bit shifting
  • Binary readability enhancements
  • Copy, paste, and clear functionality
Features
Read full description

Easily convert between hexadecimal, decimal, octal, and binary. Calculate the two's complement of any number. Flip a number's bytes to switch its endianness. Bit-shift left and right. Bit indicators and word grouping make binary easier to read. Tap the number to copy, paste, and clear. Swipe left or right on the number to backspace.

Screenshots

Numbers Converter4 screens
Convex Programmer's Calculator4 screens

Verdict

The call

The clearest difference is review sentiment: Convex Programmer's Calculator at 67% against Numbers Converter's 0%. Convex Programmer's Calculator also leads on rating (4.7 vs 1.0) and in-app purchases (none vs 1). Numbers Converter's advantage is update cadence (monthly vs every 8 months) and device support (3 vs 1). On price and ads 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. Numbers Converter sells 1 one-off in-app purchase. Convex Programmer's Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Convex Programmer's Calculator holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Convex Programmer's Calculator has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Numbers Converter's written reviews are positive against 67% of Convex Programmer's Calculator's.

UpkeepUpdate frequency

Numbers Converter ships an update monthly, Convex Programmer's Calculator every 8 months. The most recent releases landed on October 10, 2026 and September 27, 2026 respectively.

Scorecard8 real differences · 2 level
Numbers Converter versus Convex Programmer's Calculator: the parameters behind the verdict, then further details
ParameterNumbers ConverterConvex Programmer's Calculator
PriceFreeFree
Rating1.0 (1 ratings)4.7 (6 ratings) — better
Positive reviews0.0% of reviews66.7% of reviews — better
Number of ratings16 — better
Update frequencyMonthly — betterEvery 8 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better16.0
Further details — not scored
Size5 MB0 MB
Age rating4+4+
DeveloperLe VuMatthew Daigle

Customer experience

Numbers Converter

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Convex Programmer's Calculator

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive66.7%
Neutral11.1%
Negative22.2%

In-app purchases

1 purchases

Numbers Converter

One-time1
  • Remove Ads$0.99
None

Convex Programmer's Calculator

No in-app purchases

Questions

Is Numbers Converter free?
Numbers Converter is free to download, with in-app purchases available.
Is Convex Programmer's Calculator free?
Convex Programmer's Calculator is free to download, with no in-app purchases.
Which has better reviews, Numbers Converter or Convex Programmer's Calculator?
Convex Programmer's Calculator is rated higher. Numbers Converter averages 1.0 out of 5 from 1 ratings, while Convex Programmer's Calculator averages 4.7 from 6 ratings.
Do Numbers Converter or Convex Programmer's Calculator have ads?
Neither Numbers Converter nor Convex Programmer's Calculator shows ads.
Which is updated more often, Numbers Converter or Convex Programmer's Calculator?
Numbers Converter ships an update monthly, and Convex Programmer's Calculator every 8 months. Most recently, Numbers Converter was updated on October 10, 2026 and Convex Programmer's Calculator on September 27, 2026.

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