Best Ppo2 Apps

21+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated July 2026

Finding the right ppo2 apps can be overwhelming with so many options. We've analyzed 21+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Ppo2 Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1PinduoduoPinduoduoFree2.4★ (7.5K)NoYesAug 2026
2Cash AppCash AppFree4.8★ (8.6M)NoNoAug 2026
3Nitrox by EnviviaNitrox by EnviviaFree5.0★ (1)NoYesAug 2026
4OXiM SpO2OXiM SpO2Free2.0★ (2)NoNoMay 2026
5Dive Kit: Deco Planner & ToolsDive Kit: Deco Planner & ToolsFree5.0★ (1)NoYesAug 2026
6CO2 Risk CalculatorCO2 Risk CalculatorFreeNoNoMay 2026
7LogiCO2-ScoutLogiCO2-ScoutFreeNoNoMay 2026
8LogiCO2-SnifferLogiCO2-SnifferFreeNoNoMay 2026

Top Picks for Ppo2

Pinduoduo#1

Pinduoduo by 上海寻梦信息技术有限公司

Group More, Save More
Editor's Choice
🛍️ Shopping
2.4😞(7.5K ratings)
FreeIn-App Purchases
Pinduoduo screenshot 1
Pinduoduo screenshot 2
Pinduoduo screenshot 3
Pinduoduo screenshot 4

This app offers a social e-commerce experience where users can group buy quality products at lower prices. It features direct sourcing from farms and factories, with subsidies and guarantees for authenticity. Users can also enjoy live streams, short videos, and interactive games.

What We Love

  • 💰 Affordable prices
  • 🛒 Wide selection of products
  • 🚚 Fast delivery

Room to Improve

  • 🚫 Fake/counterfeit products
  • 🤥 Misleading promotions and events
  • 🤖 Excessive data collection and privacy concerns
Cash App#2

Cash App by Block, Inc.

Money. Debit Card. Bitcoin.
Strong Contender
💰 Finance
4.8😞(8.6M ratings)
Free
#3in Finance
Cash App screenshot 1
Cash App screenshot 2
Cash App screenshot 3
Cash App screenshot 4
Cash App screenshot 5
Cash App screenshot 6

Easily send and receive money or bitcoin instantly. Save by rounding up change, invest in stocks or bitcoin, and get paid up to two days early with direct deposit. Features a customizable debit card with exclusive discounts.

What We Love

  • 💳 Easy money transferring
  • 🚀 Convenient and user-friendly app
  • 🤑 Referral bonuses and discounts
  • 🤑 Free tax filing

Room to Improve

  • 🔒 Security issues and account hacking
  • 🤖 Poor customer service and lack of live support
  • 💰 Unexpected fees and charges
Nitrox by Envivia#3

Nitrox by Envivia by ENVIVIA

GF, MOD, deco and planning
Worth Considering
📚 Education
5.0(1 ratings)
FreeIn-App Purchases
Nitrox by Envivia screenshot 1
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Nitrox by Envivia screenshot 3
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Nitrox by Envivia screenshot 6

This app is a premium digital guide for Nitrox diving, offering educational content and calculation tools to optimize dives. It helps divers understand oxygen limits, plan dives using gradient factors, and prepare for certification.

More Ppo2 apps to explore

4
OXiM SpO2
OXiM SpO2
OXiM SpO2
by SEASTAR CORPORATION
Free

This app connects to a specific pulse oximeter via Bluetooth to record blood oxygen saturation and pulse rate. It automatically graphs your measurements, aiding in daily health management. View your data in clear graphs and lists for easy tracking.

Bluetooth connectivity to pulse oximeterAutomatic recording of SpO2 and pulse rateData graphing and list view
🏥 Medical
(2)
free
5
Dive Kit: Deco Planner & Tools
Dive Kit: Deco Planner & Tools
Dive Kit: Deco Planner & Tools
Trimix, CCR & nitrox planning
Free

This app provides comprehensive dive planning tools for various gas mixes, including trimix and CCR dives. It offers a suite of free utilities for gas analysis, usage, and buoyancy calculations, alongside educational content and a certification wallet. The premium version unlocks advanced planning features for complex dives.

Open-circuit, trimix, and CCR dive planningAutomatic gas switching and unlimited segmentsOffline functionality
⚽ Sports
(1)
freemium
6
CO2 Risk Calculator
CO2 Risk Calculator
CO2 Risk Calculator
by Logico2 International AB
Free
🔧 Utilities
(0)
7
LogiCO2-Scout
LogiCO2-Scout
LogiCO2-Scout
by Logico2 International AB
Free
🏥 Medical
(0)
8
LogiCO2-Sniffer
LogiCO2-Sniffer
LogiCO2-Sniffer
by Logico2 International AB
Free
🔧 Utilities
(0)
9
Dalton: Dive Gas Calculator
Dalton: Dive Gas Calculator
Dalton: Dive Gas Calculator
Nitrox & trimix calculator
Free

This app calculates critical dive gas parameters like MOD, EAD, and END, showing all derivations. It offers advanced planning tools for dive profiles and bottom time, with sharing capabilities and home/lock screen widgets for quick access. All core gas calculations are free, with advanced features available via a one-time purchase.

MOD calculationEquivalent Air Depth (EAD)Equivalent Narcotic Depth (END)
🔧 Utilities
(1)
free with in-app purchases
10
Alveolar - arterial (A-a) Gradient
Alveolar - arterial (A-a) Gradient
Alveolar - arterial (A-a) Gradient
by Satish Deopujari
Free

This app calculates the alveolar-arterial oxygen gradient (A-a gradient) and the PaO2/FiO2 ratio. It provides formulas and explanations for these important respiratory measurements, useful for medical professionals and students.

Alveolar-arterial oxygen gradient calculationPaO2/FiO2 ratio calculationFormulas for PAO2 and A-a gradient
🏥 Medical
(1)
free
11
Denver CO2 Risk Calculator
Denver CO2 Risk Calculator
Denver CO2 Risk Calculator
by Logico2 International AB
Free
🔧 Utilities
(0)
12
Luperox® Organic Peroxides
Luperox® Organic Peroxides
Luperox® Organic Peroxides
Compare organic peroxides
Free

Easily compare organic peroxides with a comprehensive product list and search functionality. Connect with Arkema representatives for cost and availability information on essential industrial chemicals.

Product list dropdown comparisonSearch for product comparisonContact Arkema representative
💼 Business
(1)
free
13
Oxyg'App
Oxyg'App
Oxyg'App
PulseOx: Confounding factors
Free
📚 Education
(0)
14
OxiSnap - SpO2 Easy Logger
OxiSnap - SpO2 Easy Logger
OxiSnap - SpO2 Easy Logger
Camera SpO2 log. Health sync.
Free
💪 Health & Fitness
(0)
15
Oone Click - PPWSA
Oone Click - PPWSA
Oone Click - PPWSA
by OONE POWER TECHNOLOGY CO., LTD.
Free
🔧 Utilities
(0)
16
Deppo
Deppo
Deppo
by Blesyum LLC
Free
🛍️ Shopping
(0)
17
ToolsX
ToolsX
ToolsX
by MATTEO GARZULANO
Free
⚽ Sports
(0)
18
RSC Nitrox
RSC Nitrox
RSC Nitrox
Enriched-air dive planner
Free
🔧 Utilities
(0)
19
gasblender
gasblender
gasblender
by CAP-REL
Free
⚽ Sports
(0)
20
Oxydian
Oxydian
Oxydian
by PPO Services AG
Free
💼 Business
(0)

FAQ about Ppo2

What are the best ppo2 apps for iPhone?
Pinduoduo tops our ppo2 apps ranking as of July 2026, with a 2.4-star average from 7.5K App Store ratings, and it's free to download.
Yes — 20 of the top ppo2 apps we rank are free to download, including Pinduoduo and Cash App.
Pinduoduo has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 21+ ppo2 apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
This app is a social e-commerce platform that allows users to group buy products at lower prices. It focuses on providing high-quality goods directly from farms and factories, often with significant subsidies and guarantees of authenticity.
You can find a wide variety of products, including fresh produce directly from over 1000 agricultural regions, daily necessities, and brand-name goods across all categories. The app emphasizes offering good value and helping users achieve their lifestyle dreams.