Fastcode vs CodeInsight
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fastcode
A lightweight code editor for front-end developers on iPhone and iPad. It supports syntax highlighting for HTML, JavaScript, and CSS, with real-time preview and the ability to import npm packages.
- Syntax highlighting for HTML, JS, CSS
- Real-time preview of edits
- Import npm packages
- Lightweight and portable
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可能是iPhone/iPad上最轻便、最适合前端开发者的代码工具。 Fastcode是一款文本文件和源代码编辑工具。它包括以下特性： - 支持html、javascript、css等文件关键词高亮显示 - 实时预览编辑效果 - 支持引入npm包 - 更多特性敬请期待
CodeInsight
Read and analyze programming code directly on your mobile device. Features syntax highlighting, symbol searching, and GitHub integration, eliminating the need for a PC for code review.
- Supports over 20 programming languages
- Syntax highlighting for numerous languages
- GitHub browsing and code downloading
- Symbol search and definition jumping
- Code analysis (function calls, inheritance)
- Upload code via Wi-Fi, URL, or iTunes
- Supports Tar, Tar.Gz, and Zip archives
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This app is aimed to provide a solution for user to reading programming code on mobile devices like phone and pad. The app provides rich features to make code reading a really easy thing with mobile devices, which makes you really don’t need a PC for code reading. 1. Supported reading codes written in languages in: C, C++, Java, Python, ObjectiveC, C#, Basic, JavaScript, PHP, Perl, Bash, Zsh, Csh, Ruby, Assembly Language, Go, Rust, R, Tcl and a lot of other languages like: Ada, Ant, Asp, Awk, CMake, CSS, Diff, DTD, Bat, Powershell, Eiffel, Erlang, Falcon, Flex, Fortran, HTML, JSON, Lisp, Lua, Matlab, OCalm, Pascal, REXX, SQL, VHDL, Vim, SVG, XML 2. Support programming language syntax highlight for programming languages below: C, C++, C#, Java, Objective C, Eiffel, Fortran, Html, Header files, Asp, Bat, Asm(x86) only, Lua, Perl, Pascal, Php, Python, R, Ruby, Shell script, Tcl/Tk, Vhdl etc 3. Support Github. You can search/browse Github pages and download source code zip archive directly from Github 4. Support search symbols in the whole source code tree, this works like a “grep” command 5. Support jumping from symbol(function, class, global variable, struct, enum etc) to its definition and declaration 6. Support search in single source code file for any keywords. 7. Support list all the symbols in current file. 8. Support find functions who called current functions (C, C++only), similar to Cscope 9. Support find all the functions called by current functions (C, C++ only), similar to Cscope 10. Support find the class inheritance relationship (C++ and Java only) 11. Support download and reading Linux kernel sources 12. Support upload source codes directly from Wifi connections 13. Support download source codes from given URL. 14. Support iTunes to upload source codes 15. Support directly read sources code packaged in Tar, Tar.Gz and zip file format. 16. Support change Font Size and Font Family Name 17. Support no-wrap reading so that a line won’t be break down to multiple lines due to small screen. 18. Multiple code reading theme for reader to choose
Screenshots
Verdict
The clearest difference is in-app purchases: Fastcode at none against CodeInsight's 1. Fastcode also leads on iOS requirement (11.0 vs 17.0). CodeInsight's advantage is update cadence (fortnightly vs every 5 months) and rating (4.3 vs 4.0). On price, ads and device support 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. CodeInsight sells 1 one-off in-app purchase. Fastcode asks for nothing beyond the download.
CodeInsight holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
Fastcode ships an update every 5 months, CodeInsight fortnightly. The most recent releases landed on November 2, 2026 and November 11, 2026 respectively.
| Parameter | Fastcode | CodeInsight |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) | 4.3 (3 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 5 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 3 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | 沛然 张 | 飞 龙 |
Customer experience
Fastcode
CodeInsight
In-app purchases
Fastcode
No in-app purchases
CodeInsight
- Full funtional version$2.99
