DevTools vs Web Calculation Tool
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DevTools
This app offers essential transcoding and encoding tools for developers. It supports various hashing algorithms, Base64, URL encoding/decoding, and data format conversions. It also includes helpful reference tables for developers.
- MD5, MD4, MD2 encoding
- SHA1, SHA256, SHA512 encoding
- Base64 encode/decode
- URL encode/decode
- JSON/XML format interchange
- Binary conversion
- ASCII and Escape Characters Tables
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The DevTools provides some transcoding features that are often used during development. Features: 1. MD5 / MD4 / MD2 encoding 2. SHA1 / SHA224 / SHA256 / SHA384 / SHA512 encoding 3. Base64 decoding / encoding 4. URL decoding / encoding 5. JSON / XML format interchange 6. Binary conversion. 7. Image encode/decode (Base64). 8. File Reader(HEX). 9. ASCII Table. 10. Escape Characters Table. 11. Content-Type Tables.
Web Calculation Tool
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You can calculate "%, vw, vh, em, rem", metallic means ratio and aspect ratio, and "Convert Units" such as temperature, length, weight, volume, speed, etc.
Screenshots
Verdict
The clearest difference is price: Web Calculation Tool at Free against DevTools's $0.99. DevTools's advantage is update cadence (monthly vs every 6 months). On ads, in-app purchases, device support and iOS requirement 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
Web Calculation Tool is free to download; DevTools costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
DevTools ships an update monthly, Web Calculation Tool every 6 months. The most recent releases landed on October 12, 2026 and October 19, 2026 respectively.
| Parameter | DevTools | Web Calculation Tool |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 | 11.0 |
| Further details — not scored | ||
| Size | 4 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | 俊锋 仝 | Eiichi Uchibori |
In-app purchases
DevTools
No in-app purchases
Web Calculation Tool
No in-app purchases
Questions
Is DevTools free?
Is Web Calculation Tool free?
Do DevTools or Web Calculation Tool have ads?
Which is updated more often, DevTools or Web Calculation Tool?
Other comparisons
