Comparison

Altitude Compass vs 超会算

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Altitude Compass

This app provides real-time altitude, pressure, and location data for outdoor activities. It offers customizable compass dials and display themes, with an optional full version for enhanced photo watermarking and personalization.

Highlights
  • Real-time altitude and pressure readings
  • GPS coordinates and nearby addresses
  • Customizable compass dials and themes
  • Home Screen, Lock Screen, and StandBy widgets
  • Watermark camera for photos
  • Photo information preservation
  • Customizable watermark content
Features
Read full description

Altitude Compass is a focused, ad-free compass and altimeter for hiking, camping, and travel records. Core compass and altitude features are free, while Full Version adds a watermark camera for iPhone and iPad and more personalization. Free core features • View heading, altitude, barometric pressure, coordinates, and nearby addresses • Switch the altitude source between GPS information and the device altimeter when supported • Check level, speed, sunrise, and sunset information • Choose from multiple compass dials, altitude display themes, light or dark appearance, fonts, and units • View altitude with Home Screen, Lock Screen, and StandBy widgets Full Version Choose Full Version when you want to record outdoor photos or further personalize Altitude Display: • High-quality watermark camera for iPhone and iPad: capture directly with the device camera and apply watermarks to high-resolution camera output rather than a screen or viewfinder capture • Photo information preservation: retain capture time, orientation, location, and other photo information whenever possible for continued recognition and organization in Photos and other apps • Custom watermark content: record altitude, pressure, coordinates, address, direction, time, and notes, with control over each field's visibility and order • HDR watermarked photos: supported iPhones can preserve richer highlight and shadow detail, with an option to save a more widely compatible JPEG instead • Custom background colors for Altitude Display You can try Full Version free for 3 days. The trial does not renew or charge automatically. A one-time in-app purchase permanently unlocks Full Version. There are no subscriptions. Customers who previously purchased the paid app automatically keep Full Version access and do not need to purchase it again. Network and privacy Core features such as heading, sensor altitude, and barometric pressure generally work offline. Nearby addresses, maps, in-app purchases, and purchase restoration require a network connection. The app contains no ads and does not collect personal data. Permissions • Location: GPS altitude, coordinates, speed, sunrise and sunset, maps, and addresses • Motion & Fitness: pressure and altimeter readings on supported devices • Camera and Photos: only when capturing and saving watermarked photos. Photo access is add-only; the app does not read your photo library. Device capabilities and readings may vary with hardware, system version, environment, and location signal. HDR watermarked photos require iPhone 12 or later with iOS 17 or later. The watermark camera is available on camera-equipped iPhones and iPads, with HDR features offered according to device capabilities.

About

超会算

This app offers a comprehensive suite of calculation tools, including standard, scientific, and dual calculators, alongside over 30 unit converters for everyday needs. It also provides specialized financial, health, and professional calculation modules, all within a privacy-focused, user-friendly interface.

Highlights
  • Standard, scientific, and dual calculators
  • 30+ unit and currency converters
  • Financial calculators (mortgage, interest, compound interest)
  • Date and time calculations
  • Unit conversion for length, area, temperature, and more
  • High-precision calculations
  • Privacy-focused with no data collection
Features
Read full description

【核心计算】 - 标准计算器:加减乘除、百分比、括号运算,长按删除与轻量历史,满足日常快速计算。 - 科学计算器:幂运算、根号、指对数、三角函数与反三角函数等常用科学函数,应对学习与复杂运算。 - 双开计算器:上下两个独立计算器并列,中间箭头一键互相复制结果,对比核算、记账分摊、A/B 方案比对都更顺手。 【30 项工具一览】 1. 汇率换算 2. 长度转换 3. 面积转换 4. 温度转换 5. 速度转换 6. 体积转换 7. 质量转换 8. 存储转换 9. 压强转换 10. 电阻转换 11. 电压转换 12. 电流转换 13. 力矩转换 14. 功率转换 15. 角度转换 16. 光照度 17. 密度转换 18. 功/能/热 19. 时间转换 20. 日期计算 21. 进制转换 22. 房贷计算 23. BMI 计算 24. 利息计算 25. 复利计算 26. 涨跌幅 27. 硬度换算 28. 万能公式 29. 大写金额 30. 亲戚称呼 【日常换算】 - 汇率换算:支持150+种法定货换算,方便出国、海淘、投资与日常查询。 - 单位转换:长度、面积、体积、质量、温度、速度、压强、电阻、电压、电流、力、功率、角度、存储、光照度、密度、功/能/热等单位即时互转,覆盖公制 / 英制 / 航海等常用分组。 - 时间转换:年 / 周 / 天 / 时 / 分 / 秒 / 毫秒 / 微秒 / 皮秒 9 个单位即时互转。 - 日期计算:「按日期」与「按天数」双模式。前者一键测算两个日期之间相差的天数 / 周数 / 近似年月日;后者从今天起向前 / 向后推算 N 天后的目标日期与星期,计划、合同到期与纪念日推算都更顺手。 - 进制转换:二、八、十、十六进制即时互转,适用于学习与开发场景。 【生活理财】 - 房贷计算:商业贷款、公积金贷款、组合贷款多种方式,支持 LPR + 基点 与 基准利率折扣 两种模式,一键测算月供、利息与总还款。 - BMI 计算:身高体重一拖即得 BMI,支持多种判定标准,便于日常健康管理。 - 利息计算:按本金、年利率、年限快速算出单利利息与总金额,理财、放贷、合同对账都用得上。 - 复利计算:已知年利率、年限和复利终值,反推所需本金;做长期投资规划与目标储蓄一目了然。 - 涨跌幅计算:v1.0.1005 新增。「按原数字」与「按目标数字」双模式互推:前者输入原数字 + 涨跌幅自动算出调整后金额;后者输入目标数字 + 涨跌幅反推原始金额,并联动给出「目标 − 原」差额。涨 / 跌方向一键切换,避免依赖键盘负号;全程使用 Decimal 维持金额精度,价格上调、加价、折扣后价、含税反不含税、营销报价测算都能秒出结果。 【专业场景】 - 硬度换算:v1.0.1004 新增。基于 ASTM E140-12b / ISO 18265:2003 非合金钢 / 低合金钢对照表,在维氏 HV、布氏 HB、洛氏 HRC / HRA / HRD / HRB / HRF、表面洛氏 HR15N / HR30N / HR45N 与抗拉强度 Rm 共 11 项指标之间任意联动:输入任一字段,其他字段以 HV 为中转进行线性插值,输出国际标准近似值。适用于材料检验、机械加工、热处理、品质检测与学习查表等场景。 - 日期推算(按天数):v1.0.1004 新增。从今天起向前或向后推算 N 天后的目标日期与星期,同日期计算页双模式切换,与「按日期」计算两个日期间隔互补。项目计划、合同到期、营销推进、生产进度、纪念日与倒计时都能一键推出。 【高效模板】 - 万能公式:内置长方形面积、圆形面积、阶梯费用、涨跌幅、折后价、速度计算、复利终值等常用公式,并支持自定义公式模板,让重复计算更高效。 【中文场景】 - 大写金额:阿拉伯数字一键转换为规范中文大写,开发票、写合同更方便。 - 亲戚称呼:通过夫妻、父母、子女、兄弟姐妹关系链推导出准确的中文亲戚称呼。 【贴心体验】 - 历史记录:完整保留运算历史,支持查看、收藏、删除与重新计算;长按进入多选可批量复制 / 删除 / 重算。 - 过程修改:计算过程可直接修改,输错不用重来;表达式支持多行显示,过长可上下滚动。 - 高精度计算:标准 / 科学 / 双开计算器、利息与复利模块全部接入高精度路径,超大数计算不再丢精度。 - 语音播报:可选开启按键音、震动与中文语音播报,闭着眼也能算账。 - 视觉风格:贴合 iPhone 计算器原生视觉风格,简约大气,长时间使用也不疲劳;首页"计算 / 换算 / 设置"支持横向滑动快捷切换。 - 主题模式:明亮、暗黑、跟随系统三种主题随心切换;支持多套自定义 App 图标。 - 9 大主题色:橙、蓝、绿、紫、粉、红、黄、青、靛青任选其一,应用内强调色实时切换并持久记忆。 - 隐私优先:不集成第三方 SDK、不收集个人信息、不追踪用户行为,所有数据仅保存在本机。 【适用场景】 - 日常生活中的快速计算与单位换算 - 学习中的科学计算、单位换算、进制转换 - 工作中的汇率换算、单位换算、万能公式套用 - 买房时的房贷月供与利息测算 - 理财投资时的利息 / 复利反算与目标本金推导 - 多方对账 / A·B 方案比对时的双开计算器 - 健康管理中的 BMI 自查 - 价格调整 / 折扣反推 / 营销报价 / 含税反不含税中的涨跌幅计算 - 计划、合同到期与纪念日推算中的「按天数」日期推算 - 跨时区 / 性能调优时的时间与日期计算 - 材料、机械、热处理与检测场景下的硬度换算(HV / HB / HRC 等) - 物理 / 化学 / 工程场景下的能量、密度、光照度等专业换算 - 中文特色场景下的大写金额、亲戚称呼 如果你也希望摆脱多个计算工具的繁琐切换,让一个 App 陪你处理生活、学习、工作中的每一次计算,欢迎下载超会算。 【订阅与App内购买项目】 - 付款: 用户确认购买并付款后记入iTunes账号。 - 续订: 苹果iTunes账户会在到期前24小时内扣款,扣款成功后订阅周期顺延相应期限。 - 取消续订: 如需取消续订,请在当前订阅到期24小时以前,手动在iTunes/Apple ID 设置管理中关闭自动续订功能。 用户协议:https://calc.luckfast.com/web/userAgreement 隐私政策:https://calc.luckfast.com/web/privacy 使用条款:https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Altitude Compass4 screens
超会算4 screens

Verdict

The call

The clearest difference is ratings volume: Altitude Compass at 17 against 超会算's 1. On price, rating, review sentiment and update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Altitude Compass sells 2 one-off in-app purchases and 超会算 sells 2 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Altitude Compass against 5.0 for 超会算. That said, the two scores are not equally well evidenced: Altitude Compass has 17 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 95% of Altitude Compass's written reviews are positive against 100% of 超会算's.

UpkeepUpdate frequency

Altitude Compass ships an update every 5 days, 超会算 every 3 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
Altitude Compass versus 超会算: the parameters behind the verdict, then further details
ParameterAltitude Compass超会算
PriceFreeFree
Rating5.0 (17 ratings)5.0 (1 ratings)
Positive reviews95.1% of reviews100.0% of reviews — better
Number of ratings17 — better1
Update frequencyEvery 5 daysEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size3 MB5 MB
Age rating4+4+
Developer锦滔 欧Wuhan Xingyun Technology Co., Ltd.

Customer experience

Altitude Compass

All ratings17 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews41 reviews
Positive95.1%
Neutral0.0%
Negative4.9%

超会算

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Altitude Compass

One-time2
  • 3-day TrialFree
  • Full Version Unlock$0.99
2 purchases

超会算

Subscriptions1
  • Calc Week Pro$0.997 Days
One-time1
  • Calc Pro$0.99

Questions

Is Altitude Compass free?
Altitude Compass is free to download, with in-app purchases available.
Is 超会算 free?
超会算 is free to download, with in-app purchases available.
Which has better reviews, Altitude Compass or 超会算?
Altitude Compass and 超会算 are both rated 5.0 out of 5 on the App Store, from 17 and 1 ratings respectively.
Do Altitude Compass or 超会算 have ads?
Neither Altitude Compass nor 超会算 shows ads.
Which is updated more often, Altitude Compass or 超会算?
Altitude Compass ships an update every 5 days, and 超会算 every 3 days. Most recently, Altitude Compass was updated on November 7, 2026 and 超会算 on October 31, 2026.

Other comparisons