O2 Duration app icon

Apps Like O2 Duration for iPhone and iPad

by Jeremy Fradet★ 1.01 ratingsUtilities$2.99Data updated 2026-09-08

O2 Duration screenshots

Ranked alternatives

Showing 21–40 of 1,000 ranked alternatives.

  1. Nee-Vo app icon

    Nee-Vo

    Reseau sans fil Otodata Inc

    Track tank levels in real time

    Monitor tank levels with real-time readings from any location. View accurate measurements and receive instant updates. Integrate with Otodata telemetry unit for precise data. Track multiple tanks simultaneously.

    ★ 4.87,290 ratingsUtilitiesFreeData updated 2026-09-06
  2. Smart Tanks app icon

    Smart Tanks

    Thincke Electronic Technology Co., Ltd.

    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-06
  1. Heart Mate: Health Monitor app icon

    Heart Mate: Health Monitor

    博岩 宜

    Track rate and play calming sounds

    Rate with real-time tracking and historical data. Play calming nature sounds for relaxation. Guide meditation and yoga sessions. Set reminders for routines. Sync data with platforms.

    ★ 4.81,877 ratingsUtilitiesFreeData updated 2026-09-06
  2. True or False Chemistry app icon

    True or False Chemistry

    Peter Li

    Test elements in 1 minute

    Test knowledge of chemical elements by identifying symbols within a minute. Answer or for oxygen's symbol. Share scores on social media. Compete on leaderboards and earn achievements through Game Center.

    ★ 4.570 ratingsGamesFreeData updated 2026-09-09
  3. OBD2 Scanner | OBD Auto Doctor app icon

    OBD2 Scanner | OBD Auto Doctor

    Creosys Oy

    Read codes, reset light, diagnose car issues

    Read and interpret OBD2 diagnostic trouble codes. Reset the check engine light. Monitor real-time vehicle data. Communicate with ELM 327 devices. View sensor values and system statuses. Save and share diagnostic reports.

    ★ 4.46,176 ratingsUtilitiesFreeData updated 2026-09-09
  4. Nothing X app icon

    Nothing X

    Nothing Technology Limited

    Connect and manage smart devices

    Connect and manage smart watches and earbuds, controlling all device functions. Customize watch and earbud features based on personal usage habits. Pair devices quickly for efficient management.

    ★ 4.72,309 ratingsUtilitiesFreeData updated 2026-09-06
  5. HeartWell: Heart Rate  Monitor app icon

    HeartWell: Heart Rate Monitor

    Shenzhen Xingchuang Media Technology Co., Ltd.

    And track rhythms

    Track with optical sensors for real-time measurements. View detailed health data and trends. Set reminders for check-ups and exercise. Export reports for professional review. Sync with wearable devices for continuous monitoring.

    ★ 4.61,165 ratingsUtilitiesFreeData updated 2026-09-06
  6. ISS Tracker - Live Position app icon

    ISS Tracker - Live Position

    Lucent Enterprises Ltd.

    Track the ISS and view its orbit

    Monitor the International Space Station with real-time tracking on an interactive world map. View current altitude, velocity, and orbital period. Access precise latitude and longitude coordinates. Choose between standard and satellite map views.

    ★ 5.010 ratingsUtilitiesFreeData updated 2026-09-06
  7. Car Play Connect: Digital Key app icon

    Car Play Connect: Digital Key

    TRIPLE IT LTD

    Track car location and fuel level

    Monitor vehicle status with real-time tire pressure, fuel level, and battery charge updates. Navigate to parked car locations. Digitally check vehicle diagnostics from a smartphone. Receive alerts for maintenance needs.

    ★ 4.32,280 ratingsUtilitiesFreeData updated 2026-09-06
  8. aquaPlanner app icon

    aquaPlanner

    Jose Weeks

    Track water tests and schedule maintenance

    Track aquarium water parameters with logging and graphing. Set notifications for maintenance tasks. Manage multiple aquariums with detailed notes. Log inhabitants and equipment. Calculate water test results and schedule maintenance reminders.

    ★ 3.360 ratingsUtilities$2.99Data updated 2026-09-08
  9. SimMon app icon

    SimMon

    Castle Andersen ApS

    ★ 4.513 ratingsMedical$22.99Data updated 2026-09-08
  10. OxyCalc app icon

    OxyCalc

    Zachariah Lowe

    Estimate oxygen needs and track patient status

    Calculate oxygen demand per patient with altitude adjustment, FiO₂, tidal volume, and respiratory rate inputs. Track oxygen needs over transport time. Plan and estimate oxygen supply based on equipment type and transport conditions.

    ★ 5.013 ratingsMedicalFreeData updated 2026-09-06
  11. The Med Life - Live Simulation app icon

    The Med Life - Live Simulation

    Michael George

    Join medical simulations remotely

    Join medical simulations led by Dr. Adam Goodcoff. Interact with real-time ECG rhythms, oxygen saturation, blood pressure, capnography, and respiratory rate. Collaborate with global healthcare professionals or join for fun.

    ★ 4.513 ratingsMedicalFreeData updated 2026-09-06

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.