Date and Time Calculator Pro vs 2fauth
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Date and Time Calculator Pro
Calculate the precise time difference between any two dates and times, down to the second. Easily determine future or past dates based on a specified duration. Ideal for tracking events, financial periods, or personal milestones.
- Calculate time distance between dates
- Calculate days after a specific date
- Calculate date before a specific date
- Second-level precision
- Period time calculation
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Want to know how many days you can receive the Christmas gift? Want to know how many days you will have the college entrance exam?Want to know how many days the 158-day wealth management product expired? This tool helps you to calculate the distance between any time, down to second. It can also calculate the day after that day between any time. This tool is not only for wealth management but also for period time. It can tell you the date before or after a certain period.
2fauth
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2fauth - 专为开发者和普通用户打造的两步验证应用 【为什么选择 2fauth？】 安全可靠 - AES-256-GCM 本地加密，PBKDF2 密钥派生，数据永不离开您的设备 简单易用 - 扫码即可添加，一键复制验证码，无需复杂设置 精致设计 - 极简界面，支持浅色/深色模式，自动跟随系统主题 专业品质 - 遵循 RFC 6238 标准，支持主流服务商 【核心功能】 扫码添加账户 - 对准二维码，自动识别服务和账号信息 手动输入支持 - 无法扫码？手动输入密钥同样便捷 实时验证码 - 倒计时圆环提醒，避免验证码过期 快速复制 - 点击验证码即可复制，无需长按 账户管理 - 编辑服务名称、账户名称，随时删除不需要的账户 主题切换 - 三种主题模式：浅色、深色、跟随系统 【技术特性】 支持多种哈希算法：SHA1、SHA256、SHA512 支持 6 位/8 位验证码 支持自定义时间周期 验证码分段显示，易于阅读 颜色编码倒计时：剩余时间一目了然 【隐私保护】 完全本地存储，无需联网 无服务器，无数据上传 无广告，无追踪 开源透明，安全可审计 【适用场景】 Google、Microsoft、GitHub、Facebook 等账户保护 企业邮箱、VPN、云服务的两步验证 加密货币钱包、交易所的安全认证 任何支持 TOTP 标准的服务 2fauth 让两步验证变得简单、安全、优雅。立即下载，为您的数字生活加一道锁！
Screenshots
Verdict
The clearest difference is update cadence: Date and Time Calculator Pro at every 5 weeks against 2fauth's every 11 months. 2fauth's advantage is iOS requirement (12.0 vs 15.0). On price, ads, 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
Date and Time Calculator Pro costs $0.99 and 2fauth $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Date and Time Calculator Pro ships an update every 5 weeks, 2fauth every 11 months. The most recent releases landed on September 29, 2026 and September 15, 2026 respectively.
| Parameter | Date and Time Calculator Pro | 2fauth |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | 4.8 (947 ratings) — better | — |
| Positive reviews | 88.9% of reviews | — |
| Number of ratings | 947 — better | — |
| Update frequency | Every 5 weeks — better | Every 11 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | 山 钟 | 重阳 石 |
Bugs and requests
Date and Time Calculator Pro
Reported bugs
3 issues- Paid version has lost the ability to calculate future dates based on weeks
- Date selection uses a scroll wheel instead of keypad entry
- Unable to copy or share calculation results
Requested features
5 requests- Add ability to change year for date time calculation
- Implement dark mode
- Add iPad version
- Add divide option in time calculator
- Add ability to calculate working days
2fauth
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Date and Time Calculator Pro
No in-app purchases
2fauth
No in-app purchases
Questions
Is Date and Time Calculator Pro free?
Is 2fauth free?
Do Date and Time Calculator Pro or 2fauth have ads?
Which is updated more often, Date and Time Calculator Pro or 2fauth?
Other comparisons
