Color Expert! vs VoltVault
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Color Expert!
Easily convert color values between HEX, RGB, HSB, and CMYK formats. Input your color values and instantly see the corresponding information displayed. This utility is designed for users who frequently work with or prefer HSB color conversions.
- HEX to RGB conversion
- RGB to HSB conversion
- HSB to CMYK conversion
- CMYK to HEX conversion
- Real-time color info display
- User-friendly interface
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A simple color value converter. Help convert between HEX, RGB, HSB, CMYK Type the values, and the color info will be displayed Color Expert:HSB, specially designed for users who prefer HSB converting
VoltVault
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VoltVault 是一款纯本地存储的密码保险箱， 帮你安全地管理所有账号密码和 TOTP 验证码。 【核心功能】 • 密码管理 — 统一保存账号、密码、网址、备注 • TOTP 验证码 — 自动生成六位实时动态码，扫二维码一秒导入 • Steam Guard — 支持 Steam 平台特殊验证码 • 隐私优先 — 数据仅保存在本机，不上传任何服务器 • 快速解锁 — 支持 Face ID / Touch ID 验证，一键复制 【安全设计】 • 密码和验证码 Secret 独立存储于 iOS Keychain • 查看密码、验证码、编辑条目分别独立验证开关 • 可自定义 Face ID 认证复用时长（15秒～2分钟） • App 启动验证可选，安心保护你的数据 【多语言支持】 支持简体中文、繁体中文、英语、法语、西班牙语、日语、韩语、德语 【适合人群】 • 重视隐私、不希望密码上云的用户 • 需要统一管理工作与生活账号的技术型用户 • 已使用 TOTP 但不想切换多个 App 的人 数据永远属于你。VoltVault，本地安全，不止于此。
Screenshots
Verdict
The clearest difference is price: VoltVault at Free against Color Expert!'s $0.99. VoltVault also leads on ads (none vs shown) and update cadence (fortnightly vs every 3 months). Color Expert!'s advantage is iOS requirement (12.0 vs 17.6). On in-app purchases 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
VoltVault is free to download; Color Expert! costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Color Expert! ships an update every 3 months, VoltVault fortnightly. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | Color Expert! | VoltVault |
|---|---|---|
| Price | $0.99 | Free — better |
| Positive reviews | 50.0% of reviews | — |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 17 MB | 1 MB |
| Age rating | 4+ | 9+ |
| Developer | 竞尘 胡 | 朝霞 程 |
In-app purchases
Color Expert!
No in-app purchases
VoltVault
No in-app purchases
