NerdCalc vs TwoBaseTen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NerdCalc
Perform calculations across binary, hexadecimal, and decimal number bases simultaneously. Easily switch input modes and see results update instantly for all bases. Supports unsigned and 2's complement for negative numbers, along with arithmetic, logic, and bitwise operations.
- Simultaneous base display
- Switchable input modes
- Unsigned and 2's complement support
- Arithmetic operations
- Logic operations
- Bitwise shifting
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NerdCalc is a binary, hexadecimal and decimal calculator that displays all three number bases at the same time. With NerdCalc, you can quickly switch which base you are inputting and the result of your calculations is always updated for all three bases, no matter what the current input mode. NerdCalc supports both unsigned and 2’s complement, to allow for negative numbers, and can perform basic arithmetic and logic operations as well as bitwise shifting. Enjoy!
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.
- Decimal to binary conversion
- Binary to decimal conversion
- Paste numbers to input
- Copy output numbers
- Switch modes with arrow tap
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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
Verdict
The clearest difference is rating: NerdCalc at 4.8 against TwoBaseTen's 4.4. NerdCalc also leads on ratings volume (183 vs 37). TwoBaseTen's advantage is update cadence (every 6 months vs every 19 months) and device support (3 vs 1). On price, review sentiment, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
NerdCalc holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 183 and 37 respectively. Written reviews complicate that: 83% of NerdCalc's written reviews are positive against 86% of TwoBaseTen's, so the app with the better star average is not the one people write more warmly about.
NerdCalc ships an update every 19 months, TwoBaseTen every 6 months. The most recent releases landed on October 9, 2026 and October 5, 2026 respectively.
| Parameter | NerdCalc | TwoBaseTen |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (183 ratings) — better | 4.4 (37 ratings) |
| Positive reviews | 83.3% of reviews | 85.7% of reviews — better |
| Number of ratings | 183 — better | 37 |
| Update frequency | Every 19 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 0 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Nidal Fakhouri | Giddyonics, LLC |
Customer experience
NerdCalc
TwoBaseTen
In-app purchases
NerdCalc
No in-app purchases
TwoBaseTen
No in-app purchases
Questions
Is NerdCalc free?
Is TwoBaseTen free?
Which has better reviews, NerdCalc or TwoBaseTen?
Do NerdCalc or TwoBaseTen have ads?
Which is updated more often, NerdCalc or TwoBaseTen?
Other comparisons
