CodeInsight vs Decibel
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Decibel
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Decibel Detector is a clean, free sound level meter for iPhone. Open the app and instantly see how loud your surroundings are, in dB(A) — the same A-weighted scale used by professional sound level meters. A live ring meter and color-coded exposure bands help you understand whether you are in a quiet space or somewhere that could damage your hearing. Features • Live dB(A) readings with industry-standard A-weighting • Color-coded exposure bands from Quiet to Dangerous • 85 dB hearing-safety indicator — the level where extended exposure can begin to harm hearing • 100% on-device: audio is never recorded, stored, or sent anywhere • No ads, no in-app purchases, no account, no tracking Readings are estimates for everyday awareness and are not a substitute for a certified, professionally calibrated sound level meter.
Screenshots
Verdict
The clearest difference is in-app purchases: Decibel at none against CodeInsight's 1. On price, update cadence, 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. Decibel asks for nothing beyond the download.
CodeInsight ships an update every 2 weeks, Decibel fortnightly. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.
| Parameter | CodeInsight | Decibel |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 weeks — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 10 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | 飞 龙 | Tony and Puffy LLC |
In-app purchases
CodeInsight
- Full funtional version$2.99
Decibel
No in-app purchases









