Comparison

NapCat vs Dev Calc

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

Head to head
About

NapCat

Access and read your favorite GitHub repositories offline on any device. This app offers a powerful code editor and comfortable reading experience with syntax highlighting for over 90 languages. Enjoy your code anywhere, anytime.

Highlights
  • Offline Git client
  • Code editor
  • Syntax highlighting
  • Starred repository access
  • Supports 90+ languages
  • Customizable themes
Features
Read full description

Reading and exploring source code should be enjoyable and not limited to your desktop. NapCat is a GitHub client that lets you download your most-used or favorite projects for offline reading and coding on the go. Features: • Universal: one app for all your devices • Fully offline Git client • Powerful code editor • Private Coding Agent Built-In (*) • Comfortable offline reading with beautiful syntax highlighting • Quick access to starred repositories • Support for 90+ languages and 30 themes, so you can read comfortably in bright sunlight or late at night (**) What users say: "Oh @napcatapp, you're the best discovery I've made all month." -- @davidlesches "The best code reader ever for iOS: NapCat - A GitHub Client" -- @elia "If you're in the market for a free iPhone github code reader, I totally recommend NapCat" — @drewbiewubie "NapCat on iPad is great when you want to offline study something cool on github" — @siuying ----- • Full version: access to all themes • Full version: unlimited offline code storage • Full version: access to private repositories ----- * Agent run locally, only context is sent to LLM ** Access to all themes is available with the Full Version upgrade Terms of Use: https://www.apple.com/legal/itunes/appstore/dev/stdeula

About

Dev Calc

This app assists developers and programmers with immediate numeric conversions between binary, octal, decimal, and hexadecimal formats. It also provides tools for generating color codes from RGB, HSL, and HSV values, with a color picker and preset options.

Highlights
  • Numeric conversion (Bin, Oct, Dec, Hex)
  • Signed/Unsigned options
  • Adjustable bit sizes (8, 16, 32, 64)
  • RGB, HSL, HSV color code generation
  • Color picker
  • Preset color options
Features
Read full description

You can convert numeric to Bin, Oct, Dec, Hex immediately with Signed, Unsigned. ** Introduction ** This is a calculator app to help System Developers and Programmers. Convert numeric to binary, octal, decimal, hex immediately. You can set conversion bit number and signed/unsigned, so you can adjust settings for binary, short, int, long. Also you can get clolor code for system application from RGB and Color Picker. And you can choose preset color simply. ** Overview ** - Convert numeric to binary, octal, decimal, hex immediately. - You can edit each digits for detailed confirmation. - You can get color code from RGB, HSL, HSV and Color Picker. - Using preset color, you can get color code quickly. ** Characteristics ** >> Numeric conversion - You can input numeric in binary, octal, decimal, hex. - You can choose bits size from 8bits, 16bits, 32bits, 64bits. - You can choose signed numeric or unsigned numeric. - you can edit each digits directly. >> Color code - You can see a color code in Hex, RGB, HSL and HSV. - Support alpha channel of color. - You can get a color code from RGB, HSL, HSV adjuster and Color Picker. - You can get a color code just by choosing a preset color. ** Terms of Use ** https://coconutsdevelop.com/en/terms/terms_of_use.html ** Developer website ** https://coconutsdevelop.com/

Screenshots

NapCat4 screens
Dev Calc4 screens

Verdict

The call

The clearest difference is rating: NapCat at 3.7 against Dev Calc's 2.0. NapCat also leads on ads (none vs shown) and ratings volume (7 vs 2). Dev Calc's advantage is iOS requirement (13.0 vs 15.5). On price, review sentiment, 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. NapCat sells 3 in-app purchases, starting at $1.99 per month and Dev Calc sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

NapCat holds the better App Store score, 3.7 against 2.0. Both are backed by a comparable volume of ratings — 7 and 2 respectively. Written reviews point the same way: 67% of NapCat's written reviews are positive against 60% of Dev Calc's.

UpkeepUpdate frequency

NapCat ships an update every 4 months, Dev Calc every 2 months. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

Scorecard4 real differences · 6 level
NapCat versus Dev Calc: the parameters behind the verdict, then further details
ParameterNapCatDev Calc
PriceFreeFree
Rating3.7 (7 ratings) — better2.0 (2 ratings)
Positive reviews66.7% of reviews — better60.0% of reviews
Number of ratings7 — better2
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.513.0 — better
Further details — not scored
Size156 MB51 MB
Age rating4+4+
DeveloperShotdoorToshiya Hondo

Customer experience

NapCat

All ratings7 ratings
Positive71.4%
Neutral0.0%
Negative28.6%
Written reviews33 reviews
Positive66.7%
Neutral9.1%
Negative24.2%

Dev Calc

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

In-app purchases

3 purchases

NapCat

Subscriptions2
  • 1 Month Pro$1.991 Month
  • 1 Year Pro$9.991 Year
One-time1
  • NapCat Upgrade$12.99
1 purchases

Dev Calc

Subscriptions1
  • Remove Ads (Monthly)$1.991 Month

Questions

Is NapCat free?
NapCat is free to download, with in-app purchases available.
Is Dev Calc free?
Dev Calc is free to download, with in-app purchases available.
Which has better reviews, NapCat or Dev Calc?
NapCat is rated higher. NapCat averages 3.7 out of 5 from 7 ratings, while Dev Calc averages 2.0 from 2 ratings.
Do NapCat or Dev Calc have ads?
Dev Calc shows ads; NapCat does not.
Which is updated more often, NapCat or Dev Calc?
NapCat ships an update every 4 months, and Dev Calc every 2 months. Most recently, NapCat was updated on October 5, 2026 and Dev Calc on October 7, 2026.

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