Comparison

Developer Calc Hex Dec Oct Bin vs TwoBaseTen

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

Head to head

Developer Calc Hex Dec Oct Bin

Show all Base number

Free

🔧 Utilities

★ 4.115 ratingsView app →

TwoBaseTen

Binary to Decimal Made Easy

Free

🔧 Utilities

★ 4.437 ratingsView app →

About

Developer Calc Hex Dec Oct Bin

This app converts numbers between binary, octal, decimal, and hexadecimal bases on a single screen. It also displays color hex codes and RGB values simultaneously. It's designed for developers needing quick base conversions and color code referencing.

Highlights

Binary, octal, decimal, hexadecimal conversion
Color hex code and RGB display
Large 19-digit decimal display
Conversion reset toggle
Maximum and minimum value display

Features

Read full description

The Calculator for Developer Developer Calc includes the following features: ■ Binary, octal, decimal, and hexadecimal in one screen ■ Color Hex code, RGB in one screen ■ The maximum value : 0x0FFF FFFF FFFF FFFF ■ The minimum value : 0xF000 0000 0000 0000 ■ The large 19-digit display of decimal ■ Conversion reset ON/OFF The following features are not included: (Just For Simple) ■ Scientific: trigonometric, hyperbolic, and logarithmic functions ■ Conversion: length, area, volume, speed, weight, temperature; unit arithmetic

About

TwoBaseTen

Easily convert between decimal and binary number systems with a simple interface. Supports pasting input and copying output for quick operations. Ideal for quick calculations without complex features.

Highlights

Decimal to binary conversion
Binary to decimal conversion
Paste numbers to input
Copy output numbers
Switch modes with arrow tap

Features

Read full description

TwoBaseTen quickly converts decimal and binary numbers using the simplest interface possible for easy operation. Functions include: - Decimal to binary number conversion - Binary to decimal number conversion - Paste numbers to input - Copy the output numbers - Tap the arrow to switch modes Please note: TwoBaseTen does not convert negative numbers, Two's Complement, or other variations. Extremely large numbers may cause output errors.

Screenshots

Developer Calc Hex Dec Oct Bin4 screens

TwoBaseTen4 screens

Verdict

The call

The clearest difference is ads: TwoBaseTen at none against Developer Calc Hex Dec Oct Bin's shown. TwoBaseTen also leads on rating (4.4 vs 4.1) and monetization model (free vs ad-supported). Developer Calc Hex Dec Oct Bin's advantage is iOS requirement (9.0 vs 12.0). On price, ratings volume, update cadence 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

TwoBaseTen holds the better App Store score, 4.4 against 4.1. Both are backed by a comparable volume of ratings — 15 and 37 respectively. Written reviews point the same way: 76% of Developer Calc Hex Dec Oct Bin's written reviews are positive against 86% of TwoBaseTen's.

UpkeepUpdate frequency

Developer Calc Hex Dec Oct Bin ships an update every 5 months, TwoBaseTen every 6 months. The most recent releases landed on October 6, 2026 and September 17, 2026 respectively.

Scorecard5 real differences · 5 level

Developer Calc Hex Dec Oct Bin versus TwoBaseTen: the parameters behind the verdict, then further details
Parameter	Developer Calc Hex Dec Oct Bin	TwoBaseTen
Price	Free	Free
Rating	4.1 (15 ratings)	4.4 (37 ratings) — better
Positive reviews	76.3% of reviews	85.7% of reviews — better
Number of ratings	15	37 — better
Update frequency	Every 5 months — better	Every 6 months
Ads	Yes	No — better
In-app purchases	No	No
Monetization	Ad-supported	Free — better
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	9.0 — better	12.0
Further details — not scored
Size	4 MB	7 MB
Age rating	4+	4+
Developer	QQ TSUBASA	Giddyonics, LLC

Customer experience

Developer Calc Hex Dec Oct Bin

All ratings15 ratings

Positive80.0%

Neutral6.7%

Negative13.3%

Written reviews93 reviews

Positive76.3%

Neutral8.6%

Negative15.1%

TwoBaseTen

All ratings37 ratings

Positive86.5%

Neutral2.7%

Negative10.8%

Written reviews7 reviews

Positive85.7%

Neutral14.3%

Negative0.0%

In-app purchases

None

Developer Calc Hex Dec Oct Bin

No in-app purchases

None

TwoBaseTen

No in-app purchases

Questions

Is Developer Calc Hex Dec Oct Bin free?

Developer Calc Hex Dec Oct Bin is free to download, with no in-app purchases.

Is TwoBaseTen free?

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

Which has better reviews, Developer Calc Hex Dec Oct Bin or TwoBaseTen?

TwoBaseTen is rated higher. Developer Calc Hex Dec Oct Bin averages 4.1 out of 5 from 15 ratings, while TwoBaseTen averages 4.4 from 37 ratings.

Do Developer Calc Hex Dec Oct Bin or TwoBaseTen have ads?

Developer Calc Hex Dec Oct Bin shows ads; TwoBaseTen does not.

Which is updated more often, Developer Calc Hex Dec Oct Bin or TwoBaseTen?

Developer Calc Hex Dec Oct Bin ships an update every 5 months, and TwoBaseTen every 6 months. Most recently, Developer Calc Hex Dec Oct Bin was updated on October 6, 2026 and TwoBaseTen on September 17, 2026.